1.6 MB pdf: Code-Point user guide and technical specification
Contents
1. sein 24 NTI dir ice B m 24 Volume Header Record VOLHDREC 01 e nennen 25 Database Header Record DBHREC 02 ener 26 Attribute Description Record ATTDESC 40 sssssssssesseeeneeee enne 27 Feature Classification Record FEATCLASS 05 sss 28 Section Header Record SECHREC 07 eene nnne 29 Point Record POINTREC 15 sse ener enne nnne nnne 30 Geometry Record GEOMETRY 1 21 enne ene nen enne nnnnnn 31 Attribute Record ATTREC 14 ssssssssssssessseneeneeen eene nennen nennen nennen 32 Volume Terminator Record VOLTERM 99 sssssseseeeeeneennennen nene 33 Comma Separated Values CSV explained eene 34 An overview of the data in CSV format enne nnns 34 Record structures for the transfer of Code Point in CSV e snes 35 CSV fields 35 MOSS ANY usto SR RUSSA DS 37 v2 5 08 2008 Code Point technical specification contents v2 5 08 2008 Crown copyright Page 17 of 39 Introduction Purpose of this specification and disclaimer This is the technical specification hereafter referred to as the specification referred to in the Framework Direct Licence Specific Use Framework Partner Licence or your other customer contract We may change the information in this specification at any time2. sssssssssssssssessseeneeee ener nnns 19 What you need to use Code Point e eene nennen 19 SUPPlY Then EHE 19 Blei dH 19 ISI EHE 19 Code Point data SITUCtUre 1er tet quanto eerte bade e eH Ee Ae ele re ER E dad PRAE NES RENTA TELA 19 Structure of Code Point CDROM erener iiei nene enne ener nnne nnn 20 Code Point content 21e eee ee loca delas sa sax I PARET DR RIDE 20 FOR IMMAUS teint HEIDE APS RR RED DUI eI ar 21 ME HP ER ae ao aaa 21 e 21 NTF Ox plain GG 22 An overview of the data in NTF cccecccccececeeeeeeeeeaeeeeeeeeeeeeseceaeaeeeeeeeseeecaaaeseeeeeseeeeninaeenss 22 INtTNODUGUON me 22 Record SIZE 22 Continuation mark CONT MARK sssssssssssseeeeeeeen nennen nennen nnne nennen 22 Record t rminator EOR az salas t aaa dicas do ulus un andae aaa 22 Transfer Seterika ea auo a aaa E edocet u ag rente aaa a 22 Transter set Structure aaa dr aa aa a aa ae aa EN 22 Volume records e tt ees A a suada gas A A aa 22 Database records edet e tecta et E a eun a 22 Section records Cm 23 Supply of data on media sssssssssssssssesees nennen nennen entere nennen nennen nis 23 Formatted media erre araras eres araras seins sasasasa sais siis 23 Record structures for the transfer of Code Point in NTF
3. used to create the CPLC where PQI value is 100r20 F I3 RP Domestic delivery points F I3 BP Non domestic delivery points F I3 PD PO box delivery points F I3 MP Matched address premises F I3 UM Unmatched delivery points F I3 CY Country code F I3 RH NHS regional health authority code F A3 LH NHS health authority code F A3 CC Administrative county code F A2 DC Administrative district code F A2 WC Administrative ward code F A2 LS Postcode type F A1 Attributes with null data will be omitted from this record Each of the attribute mnemonics will be defined in an Attribute Description Record ATTDESC 40 at the start of the transfer set Record example 14000000PCSO5B15RUPQ3PRNTPO17DQO17RPO17BP000PD000MP0O17UMOO0RV19990215RHYO6LHQD31 00CC24DCUNWCFEFWOS Template 0 0 0 TT Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 32 of 39 Volume Terminator Record VOLTERM 99 Field Position Format Value example Description REC DESC 01 02 A2 99 Record type identifier FREE TEXT 03 A Message see note below CONT_VOL Is 11 0 No continuation volume follows EOR d A1 Record terminator NOTE the FREE_TEXT field will comprise the message End Of Transfer Set Record example 99End Of Transfer Set0 PEWEPESSUEUPEEPCIFEPDPECOHUSPOSEECKEERRENPPIREDEPCOPEPEDEIDEELIPEPIEEDESCPOPEE ENSE NEUE ewe oo 12345678901234567890123456789012345678901234567890123456789012345678901234567890 aera cle
4. Code Point technical specification chapter 1 v2 5 08 2008 Crown copyright Page 20 of 39 Formats Code Point is available in BS 7567 NTF v2 0 Level 2 and Comma Separated Values CSV NTF NTF is the standard transfer format for most of Ordnance Survey s digital map data products Code Point is supplied in NTF v2 0 Level 2 which has been formally recognised as a British Standard BS 7567 For convenience BS 7567 NTF v2 0 Level 2 is referred to as NTF throughout The structure of Code Point supplied in NTF is described in chapter 2 and chapter 3 of the technical specification CSV CSV is a standard method for delivering data It is a common interchange format for spreadsheets and databases and facilitates simplistic use of Code Point For convenience this is referred to as CSV throughout The structure of Code Point supplied in CSV is described in chapter 4 and chapter 5 of the technical specification E Code Point technical specification chapter 1 v2 5 08 2008 Crown copyright Page 21 of 39 Chapter 2 NTF explained An overview of the data in NTF Introduction This chapter gives an outline of the data structure of Code Point in NTF It should be read in conjunction with chapter 3 There are certain conventions used in the record examples which are Square brackets are placed around record names for example VOLHDREC A pair of braces denote field names for example REC_DESC is the record descripto
5. a substantial amount of mail a postcode will apply to only one address a large user postcode The maximum number of addresses in a postcode is 100 The postcode is held in Code Point as a seven character field Although when used in an address the inward code incode should be separated from the outward code outcode by a single space within Code Point data there may be 0 1 or 2 spaces between these elements of the postcode The following is a list of the valid formats of postcode held An A indicates an alphabetic character an N indicates a numeric character Format Outcode Incode Example postcode Example as held in Code Point AN NAA M2 5BQ M2 5BQ ANN NAA M34 3AB M34 3AB AAN NAA DN5 7XY DN5 7XY AANN NAA DN16 9AA DN169AA ANA NAA W1A 4WW W1A 4WW AANA NAA EC1A 1HQ EC1A1HQ Postcode example Area District Sector Unit KY 12 8 UP Please refer to the glossary for a further description of postcode Position Code Point location coordinate CPLC Code Point provides an NGref to a resolution of 1 metre for each postcode unit in Great Britain and Northern Ireland and is known as the CPLC A CPLC is normally allocated to a point that falls within the extent of the postcode unit The point is given the ADDRESS POINT coordinates of the nearest delivery point to the calculated mean position of the delivery points in the unit A lower positional quality CPLC will be allocated to postcode units awaiting a surveyed position or which re
6. analysis Location finding Code Point user guide chapter 2 v2 5 08 2008 O Crown copyright Page 7 of 39 Scenarios Medical research for health authorities It is necessary for health authorities to be able to analyse and identify the effects and potential implications of contamination Is the incidence of bronchitis uneven throughout a health authority s area Customer survey for market research purposes A questionnaire has been distributed to all houses within a large geographical area The results and the relationships between groups of customers need to be analysed Incident analysis for emergency services An ambulance service wishes to assess the efficiency and value of various mobile unit locations in reducing call response times Insurance for financial services An insurance company has been asked to quote structural insurance for a potential customer within the Southampton SO area SO has been labelled geographically as a clay area and therefore insurance companies could charge higher premiums because of the potentially higher incidence of subsidence 0 o NENENENENMNNNRB E ERRENRhh NENMNNMNMEMEN Code Point user guide chapter 2 v2 5 08 2008 O Crown copyright Page 8 of 39 Chapter 3 Code Point explained Postcode Postcodes are an alphanumeric abbreviated form of address Postcode units are unique references and identify an average of 15 addresses In some cases where an address receives
7. indicator 0 PO box indicator 0 Total number of delivery points 0 Delivery points with same PQI as unit itself 0 Domestic delivery points 0 Non domestic delivery points 0 PO box delivery points 0 Matched address premises 0 Unmatched delivery points 0 Country code 0 NHS regional health authority code 0 NHS health authority code 0 Administrative county code 0 Administrative district code 0 Administrative ward code 0 Postcode type 0 ERR ES ER PR EE O esate blll ce aire ees PE TENET 12345678901234567890123456789012345678901234567890123456789012345678901234567890 lade M HR EXE PAP lle obs DOM RT NAA HAMM Template Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 27 of 39 Feature Classification Record FEATCLASS 05 Field Position Format Value example Description REC DESC 01 02 A2 05 Record descriptor FEAT CODE 03 06 l4 2801 Feature code CODE COM 07 16 A10 108 Not used STCLASS 17 36 A20 208 Not used FEATDES 37 A Postcode unit Point Textual description of feature classification DIVIDER es A1 Divider used to terminate variable length fields CONT_MARK m I1 0 No continuation record EOR mr A1 Yo Record terminator variable integer Record example 052801 Postcode unit Point 0 area e aa loue eres Da ae auerzdjuexqe eeesacaergueeeevaweredumesOacsedeunsadesaelsue B 12345678901234567890123456789012345678901234567890123456789012345
8. mail Small users receive 70 pieces of mail per day Code Point user guide chapter 3 v2 5 08 2008 Crown copyright Page 10 of 39 Administrative and health authority codes Administrative and health authority codes allocation to postcode is by point in polygon comparison against Boundary Line data For administrative NHS codes a look up table in Gridlink is used In the case of unitary authorities 00 is given for administrative county the authority code appears as the district code Where a district or unitary authority is divided into electoral districts the code appears as the ward code Postcodes with a PQI of 90 or 60 are not allocated codes Lineage Code Point is derived from Gridlink data ADDRESS POINT which was initially created from a comparison of the Royal Mail Postal Addressing File PAF Land Line and the ROADS database datasets from Ordnance Survey and administrative and national health area codes created by ONS OSNI and GROS but allocated using Ordnance Survey Boundary Line data and positioned with an Ordnance Survey NGref It also contains the BT postcodes for Northern Ireland locations for which are supplied by OSNI Currency Currency is a measure of the real world change included in Code Point Monthly postcode updates from the Royal Mail Postzon and PAF and inputs received from ONS GROS and OSNI together with improvements derived from Ordnance Survey field activity are included in each version of Co
9. map window and all the available tool bars will be listed Simply click on the Editor tool bar and it will be loaded to the toolbar e Click the Editor drop down and select the first option Start Editing e Once Start Editing has been selected return to the attribute table e Right click on the column name of the column added previously for example NewPC and select Calculate Values This opens the following Field Calculator dialogue box Field Calculator Fields Type zi FID Number POSTCODE UPP C String PC AREA NewPC C Date Advanced RTrim Left Postcode Len Postcode 3 Righif Postcode 3 Calculate selected records only e Inthe bottom dialog box enter in the following function command RTrim Left Postcode Len Postcode 3 Right Postcode 3 e Click OK to update the column This will update your new column with a single space postcode Finally go back to the map window click on the Editor tool bar and select Stop editing It will prompt to save the edits Click Yes Code Point user guide chapter 4 v2 5 08 2008 Crown copyright Page 15 of 39 Annexe A Product and service performance report form Ordnance Survey welcomes feedback from its customers about Code Point If you would like to share your thoughts with us please print a copy of this form and when completed post or fax it to the address below Bol NaMe e CUNT RR RNA RO DV NR RD ON ND ES RS TR a VE ITE Org
10. resources by clicking on the blue hyperlinks and the table of contents Ordnance Survey is committed to providing customers with consistently high quality geographic information As such Ordnance Survey regularly applies several data quality measures to the product and the associated documentation These quality measurements are based on the principles identified in SO 19113 2002 Geographic Information Quality principles NOTE according to North America Standards Institute although ISO 19113 2002 is applicable to digital geographic data its principles can be extended to many other forms of geographic data such as maps charts and textual documents ISO 19113 2002 does not attempt to define a minimum acceptable level of quality for geographic data If you are unfamiliar with any words or terms used and require clarification please refer to the glossary at the end of the document at annexe A attached to this specification 00 MENENENENMEMHN RENEMEEMEEEEEEEEENEEEEEEEEEEEEEEEEEEEENEN Code Point technical specification introduction v2 5 08 2008 Crown copyright Page 18 of 39 Chapter 1 Introducing Code Point Requirements to utilise Code Point What you need to use Code Point Code Point is a data product and does not include software for analysis but can be used with a variety of programs Code Point can be loaded onto any desktop PC Consult your geographical information system GIS vendor to establish actual
11. terminate variable length text fields CONT MARK 65 65 I1 0 No continuation record EOR 66 66 A1 96 Record terminator Record example O010RDNANCE SURVEY 2005111000000120200V 0 0 0 TO Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 25 of 39 Database Header Record DBHREC 02 Field Position Format Value example REC DESC 01 02 A2 02 DBNAME 03 22 A20 CODE POINT 2005 4 0 lt S gt DDNAME 23 42 A20 DEFAULT 02 00 lt 7S gt DDDATE 43 50 D8 19920515 DDBASE 51 70 A20 208 DDBDATE 71 78 D8 00000000 CONT MARK 79 79 A1 1 EOR 80 80 A1 96 Continuation of Database Header Record Field Position Format Value example REC DESC 01 02 A2 00 FCNAME 03 22 A20 CODE POINT 03 02 4S FCDATE 23 30 D8 20051104 DQNAME 31 50 A20 208 DQDATE 51 58 D8 00000000 DATA MODEL 59 60 I2 02 CONT MARK 61 61 A1 0 EOR 62 62 A1 96 Description Record type identifier Database name Code Point dataset version Standard NTF data dictionary name Date of standard data dictionary Not used Not used Continuation record follows Record terminator Description Continuation record identifier Code Point specification version 3 02 see note Creation date of dataset Not used Not used Data model type spaghetti No continuation record Record terminator NOTES the Code Point specification version number gives the major version before the decimal point 3 in the above exampl
12. 20914 064 YO6 QD3 24 UN FW S Code Point technical specification chapter 5 v2 5 08 2008 Crown copyright Page 36 of 39 Annexe A Glossary The purpose of this section is to provide a glossary of terms used in the definition of products services licensing and other terms and conditions for Code Point Where terms refer to other terms within the glossary they are connected by means of hot links to the relevant entries addressed premise A permanent or non permanent building structure with an address being a potential delivery point for Royal Mail Examples of an addressed premise would be a house a flat within a block of flats a caravan site a bollard to which several houseboats may be moored or an organisation occupying the whole of a building ADDRESS POINT An Ordnance Survey addressing product that relates Royal Mail Postcode Address File PAF addressed properties within Great Britain to the National Grid area based postcode A type of large user postcode that is allocated to a small number of organisations who receive an exceptionally large amount of mail These postcodes still relate to a geographical area but may overlap other sector areas or be scattered building A physical walled structure connected to foundations that has or will have a roof This definition includes buildings surveyed at foundation stage CPLC Code Point location coordinate A National Grid reference for each postcode unit It is a
13. 24550 eea CIeS ooo EE Ian Reps Res kRKH Fr ies ub O nn dai Cum sand 9 POStCODE sais 9 ESI M 9 elim A aaa a a 9 Code Point location coordinate CPLO sse 9 Positional quality indicator PQI sssssssssssseeeeeneeeneen nennen 9 Administrative and health authority codes errar 11 Chapter 4 Creating single space postcodes ese errenaeaseaeenennnnaacaananea 12 Centroids only ssssssssssssssseeseeeneee eene nennen nemen en nenr iren tener rnnt nennen entente eis 12 Outward and inward bound representation seara 12 Single space postcodes sssssssssssssssssssseseeee enne eren nennen rennen n nnne 12 CSV single space postcodes using Microsoft Excel sss 12 MID MIF and TAB single space postcodes using Maplnfo ii 12 Shapefile single space postcodes using ESRI ArcGIS sse 14 Annexe A Product and service performance report form ccceceeeeeeeeeeeeeeeeeeeeeeeeneeeeeseeeeeeeeeeeanes 16 v2 5 08 2008 D05300 24 0 TO Code Point user guide contents v2 5 08 2008 O Crown copyright Page 2 of 39 Preface This user guide hereafter referred to as the guide is designed to provide an overview of Code Point hereafter referred to as
14. 678901234567890 Ml ecole PU A RAE TR UT enn Template Do TO Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 28 of 39 Section Header Record SECHREC 07 Field Position Format Value example Description REC DESC 01 02 A2 07 Record type identifier SECT REF 03 12 A10 SO lt 8S gt Postcode area covered by dataset COORD_TYPE 13 13 I1 2 Defines rectangular coordinates STRUC TYP 14 14 I1 1 Defines vector data XYLEN 15 19 I5 00007 Defines X COORD Y COORD as seven digit fields XY UNIT 20 20 I1 2 Defines X and Y units as metres XY MULT 21 30 R10 3 0000001000 Multiply X and Y coordinates by 1 000 ZLEN 31 35 I5 00006 Defines Z coordinates as six digit fields Z UNIT 36 36 I1 2 Defines Z units as metres Z MULT 37 46 R10 3 0000001000 Multiply Z units by 1 000 X ORIG 47 56 110 0000000000 Origin of National Grid zero Y_ORIG 57 66 110 0000000000 Origin of National Grid zero Z DATUM 67 76 110 0000000000 Not used CONT_MARK 77 77 A1 1 Continuation record follows EOR 78 78 A1 Yo Record terminator Continuation of Section Header Record Field Position Format Value example Description REC DESC 01 02 A2 00 Continuation record identifier XMIN 03 12 110 0000000000 Not used YMIN 13 22 110 0000000000 Not used XMAX 23 32 110 0000000000 Not used YMAX 33 42 110 0000000000 Not used XY_ACC 43 47 R5 2 00000 Not used Z_ACC 48 52 R5 2 00000 Not used SURV_DATE 53 60 D8 00000000 Not used LAST_AMND 61 68
15. D8 00000000 Not used COPYRIGHT 69 76 D8 19990401 Effective copyright date CONT_MARK 77 17 A1 0 No continuation record EOR 78 78 A1 Yo Record terminator Record example 07SO 21000072000000100000006200000010000000000000000000000000000000001 00000000000000000000000000000000000000000000000000000000000000000000199904010 species ma rom C Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 29 of 39 Point Record POINTREC 15 Field Position Format Value example Description REC DESC 01 02 A2 15 Record type identifier POINT ID 03 08 l6 000051 Feature serial number range 000001 999999 VAL TYPE 09 10 A2 28 Not used VALUE 11 16 A6 68 Not used FEAT CODE 17 20 A4 2801 Point feature code CONT MARK 21 21 A1 0 No continuation record EOR 22 22 A1 Yo Record terminator Record example 15000051 28010 1 2 3 4 7 12345678901234567890123456789012345678901234567890123456789012345678901234567890 E Template E E Do O Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 30 of 39 Geometry Record GEOMETRY1 21 Field Position REC DESC 01 02 GEOM ID 03 08 GTYPE 09 09 NUM COORD 10 13 IX COORD 14 20 Y COORD 21 27 QPLAN 28 28 CONT_MARK 29 29 EOR 30 30 Format A2 16 Al 14 17 17 A1 A1 A1 Value example 21 000000 1 0001 0272530 0196956 S 0 1 Yo Description Record type identifier Not used Define
16. O LOIS Survey Code Point User guide and technical specification Code Point User guide Contents Section Page no xir MEN nc I 3 Contact details ese 3 Use of the prodUCt etre n kn e ACOUSTIC OEA a Sa 3 Purpose and disclaimer reiten penne atadas FER Dex Yen CRASE RICA dk Cr Sua TERIS Ron ES 3 oup mm 3 Data copyright and other intellectual property rights a 4 Trademarks TI EEUU EROTISCHE 4 Back up provision of the product nesnssesncsarciicii iir ninn nn eene nennen nennen nns 4 Using this QUID ose ces eceecetvitees 4 Chapter 1 IntrOCIICLON m P 5 Using this user Quide ass c 5 Code Pointfealures ene a cierres wield decd ented ere pe edd UR ce OP aa soda 5 Applications of Code Poilil 1 1 1 cedet op deside tenens ceres si e Ra sadia DIR ORE S 5 Chapter 2 Overview of Code Polht nicer rti k kia usan ep E Fe kan sda picas AERE EN RARE RRARRA ABRE cas asdd nica Acad 6 Data OVERVIEW EMI cR 6 Basic principles setius nete coget a e hes nae peu adu d nne VR eu nA ER eu ein 7 Application OVERVIEW Gus xac desees trt ee dd Reb RR eR POS RE ad 7 Uses of Code Po lint amasse tiara e eer ed ete dd 7 DSCOMAMOS m PH 8 Chapter 3 Gode Point explained isis eie 0
17. a field to the end of the table e Name the new column NewPostcode and give it a Type of Character and a Width of 8 e Click the OK button to apply the changes The final stage is to update the new column e Click Table and then the Update column tab This opens the following dialogue box Update Column Table to Update PostCodeTable pe Column to Update NewPostcode Y Get Value From T able PostCodeTable Join Value Assist M Browse Results Cancel Clear Help e Ensure that the Table to Update field has the name of the table you wish to update as its value e From the Column to Update drop down menu select the previously added column NewPostcode making sure the Get Value from Table is the same table as in the Table to Update field e Click the Assist button Code Point user guide chapter 4 v2 5 08 2008 O Crown copyright Page 13 of 39 This opens the following Expression dialogue box Expression Type an expression Columns Operators Functions Cancel Verify Help e Inthe Type an expression box key in the following function command RTrim Left Postcode Len Postcode 3 Right Postcode 3 e Clickthe OK button to apply the update This will update your new column with a single space postcode Shapefile single space postcodes using ESRI ArcGIS These steps are based on the assumption that the data has already b
18. a single block of flats or offices will share one NGref these may be either large users or small users or both e Administrative area codes are allocated using the Boundary Line polygon that the CPLC falls within currency is that of the latest available Boundary Line data Where addresses in a postcode fall in two or more administrative areas only the codes for the area in which the CPLC falls are given e NHS codes are allocated using the premise that NHS areas are always supersets of administrative areas Application overview Uses of Code Point Code Point forms a nationally consistent postcode reference and is a standard link between databases and GIS Identified below are some of the applications for Code Point Citizen services Web site searches Location finding Tourism Accessing public facilities Government Statistical demographic analysis Crime analysis Flood warnings Pollution monitoring Health Targeting of services to population needs Resource allocation Epidemiology Analysis of What if scenarios Insurance Market analysis and profiling Geological and flood risk analysis Personal and household risk assessment Incident area management Retail Sales analysis by store Competitor analysis Customer buying profiles Store location Targeting promotions Transport Routing Satellite navigation end to end journey planning Utilities Market profiling Consumption analysis Pressure zone
19. anisat sers srian M AdArESSi onena ER PRN CN RIR RR ND E a aa a a aa Quotation or order reference sir emen nenne hhehes nn aerea aaa nana EEEa K EEEL ELENA itis ENESENN asa sana Eai Please record your comments or feedback in the space below We will acknowledge receipt of your form within three 3 working days and provide you with a full reply or a status report within 21 working days If you are posting this form please send it to Code Point Product Manager Ordnance Survey Romsey Road SOUTHAMPTON SO16 4GU If you wish to return it by fax please dial 023 8079 2615 Any personal information that you supply with this report form will be used by Ordnance Survey only in the improvement of its products and services It will not be made available to third parties 0 00 o MENENENMEKRREAENMNEMMMNMNMN NEN Code Point user guide annexe A v2 5 08 2008 Crown copyright Page 16 of 39 Code Point Technical specification Contents Section Introduction Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Annexe A Page no O9 18 Purpose of this specification and disclaimer 18 erede 18 Using this specification a asa terne tt ntn loe nen dia Fase ada sean opaca sae a RARE ee ngon 18 introducing Code re m 19 Requirements to utilise Code Point
20. ator A1 1 TP Total number of delivery points I3 E Field separator A1 1 DQ Delivery points used to create the CPLC where the PQI I3 value is 10 or 20 Field separator A1 1 RP Domestic delivery points I3 i Field separator A1 1 BP Non domestic delivery points I3 Field separator A1 1 PD PO box delivery points I3 Field separator A1 1 i MP Matched address premises I3 Field separator A1 1 UM Unmatched delivery points I3 Field separator A1 1 i EA Eastings I6 li Field separator A1 1 NO Northings I7 E Field separator A1 1 CY Country code I3 3 Field separator A1 1 RH NHS regional health authority code A3 3 Field separator A1 1 LH NHS health authority code A3 3 Field separator A1 1 CC Administrative county code A2 2 Field separator A1 1 DC Administrative district code A2 2 Field separator A1 1 WC Administrative ward code A2 2 Field separator A1 1 LS Postcode type A1 1 0 O Code Point technical specification chapter 5 v2 5 08 2008 Crown copyright Page 35 of 39 Those fields containing text that is alphanumerics A will be enclosed by double quotes which have not been included in the sizes listed above Fields with null data will appear as for text or O for a numeric Each record will be terminated with a carriage return character ASCII 13 and a line feed character ASCII 10 Examples of a Code Point CSV record 850515RU 10 N 17 17 17 0 0 17 0 437015 1
21. column excluding the row column names e Inthe function line enter in the following function command where A1 is the column containing the postcode TRIM LEFT A1 LEN A1 3 amp amp RIGHT A1 3 This should now produce a column containing postcodes with a single space The same method can be employed in MS Access using an update query rather than the function line The functions listed above are the same for Access and Excel MID MIF and TAB single space postcodes using Maplnfo The process within MapInfo is the same regardless of whether the original supply is in TAB or MID MIF as both get imported to MapInfo and opened as a TAB file e First open the Code Point data in MapInfo and add a new column to hold the formatted postcode To add a column to the TAB file e Click on Table Maintenance Table Structure This opens the following Modify Table Structure dialogue box 0 0 o NENNEN Code Point user guide chapter 4 v2 5 08 2008 O Crown copyright Page 12 of 39 Modify Table Structure Fields Indexed Character 8 Character 20 x Character 2 NewPostcode Character 8 Add Field Remove Field m Field Information Name NewPostcode v Table is Mappable Type Character Projection Width E DK Cancel Help NOTE ifthe Add Field Remove Field buttons are missing then it may be necessary to save a copy of the table and alter the copy e Click on Add Field This adds
22. cted at the postcode level This has led to the product being widely used in a variety of applications including e Site location e market analysis and profiling e health and epidemiology e resource allocation e socio economic profiling and e sales targeting E Code Point user guide chapter 1 v2 5 08 2008 Crown copyright Page 5 of 39 Chapter 2 Overview of Code Point Data overview Code Point is recreated quarterly using updates from Ordnance Survey field surveys and Gridlink a consortium made up of Royal Mail Ordnance Survey the Office of National Statistics ONS Ordnance Survey of Northern Ireland OSNI and the General Register Office for Scotland GROS via ADDRESS POINT and Boundary Line ADDRESS POINT contains postal address data for 27 million postal delivery points These delivery points may be premises that are shown in Land Line data such as buildings or they might be features that do not form part of the Land Line specification such as PO boxes caravan parks buildings under railway arches temporary buildings and houseboats All postcode units in PAF Postcode Address File at the time of creation which have valid and current postal delivery points will be in Code Point Example of Code Point data when viewed through a GIS package Example of Code Point browser when viewed through a GIS package a Fie Edit Tools Objects Query Table Options B
23. de Point Positional accuracy Each CPLC is coordinated on the National Grid with eastings and northings quoted to a resolution of 1 metre The accuracy of each postcode unit coordinate pair is defined by the PQI which provides a quality statement of that Code Point record Attribute accuracy The representation of postcode attributes is checked as part of Royal Mail maintenance of PAF and by Ordnance Survey when coordination and quality assurance of ADDRESS POINT is carried out during field survey activity Logical consistency Logical consistency is a measure of the degree to which Code Point data agrees with its specified structure Data is monitored to ensure that attributes are present in the correct format and in valid combinations Completeness Code Point contains coordinates for all available postcode units supplied to Ordnance Survey from the Royal Mail PAF Resources are directed towards continually improving attribute and positional accuracy Deleted postcodes are not included Errors and omissions that are identified by customers can be referred to Ordnance Survey for investigation and where appropriate onward notification to Royal Mail E NEN Code Point user guide chapter 3 v2 5 08 2008 Crown copyright Page 11 of 39 Chapter 4 Creating single space postcodes Centroids only Outward and inward bound representation The current specification represents the postcodes in a set format which defines the postcodes as ha
24. e and after it the supply option 2 in the example CODE POINT 03 02 Code Point product Record example 02CODE POINT 2002 1 0 DEFAULT 02 00 OOCODE POINT 03 02 19990401 19920515 2 4 12345678901234567890123456789012345678901234567890123456789012345678901234567890 Template 000000001 00000000020 T Do o NMENENENENMENBBBNBNEUEEMMKENMMMNNNNN NN Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 26 of 39 Attribute Description Record ATTDESC 40 Field REC DESC VAL TYPE FWIDTH FINTER ATT NAME DIVIDER CONT MARK EOR Position Format Value example Description 01 02 A2 40 Record type identifier 03 04 A2 PR Attribute mnemonic for example PO box indicator 05 07 A3 001 or 3S Fixed width of attribute or three spaces if variable width 08 12 A5 A1 3S Interpretation of field A if variable width 13 A PO box indicator Name given to attribute e A1 A1 0 No continuation record A1 Record terminator NOTES an attribute description will be needed to describe all attributes used in Code Point data All the attributes that may appear within the data are given in the record examples below Record examples 40PC007A7 40PQ00212 40PR001A1 40TP00313 40DQ00313 40RP00313 40BP00313 40PD00313 40MP00313 40UM00313 40CY00313 40RH003A3 40LH003A3 40CC002A2 40DC002A2 40WC002A2 40LS001A1 Postcode unit 0 Positional quality
25. e total number of both matched and unmatched delivery points in the postcode Not in BT data for Northern Ireland Number of matched addresses in the postcode unit of the same positional quality in ADDRESS POINT as the PQI for that postcode in Code Point provided that the Code Point record has a PQI value of 10 or 20 Not in BT data for Northern Ireland Number of non PO box delivery points that have no PAF organisation name Not in BT data for Northern Ireland Number of non PO box delivery points that have a PAF organisation name Not in BT data for Northern Ireland Number of PO box delivery points Not in BT data for Northern Ireland or where PQI is 20 in Scotland Number of PQ3 ADDRESS POINT delivery points in buildings or building subdivisions after exclusion of duplicated coordinate pairs Not in BT data for Northern Ireland or where PQI is 20 in Scotland Number awaiting improvement to PQ3 ADDRESS POINT Not in BT data for Northern Ireland or where PQI is 20 in Scotland Distance in metres east of National Grid origin Distance in metres north of National Grid origin Code used by ONS to identify the country in which the Code Point georeference lies See glossary NHS region in which CPLC falls NHS area in which CPLC falls County in which CPLC falls District in which CPLC falls Ward in which CPLC falls Indicates whether the user is large L or small S Large postcode type users receive in excess of 500 pieces of
26. each postcode area and the date of the most recent version of the Royal Mail PAF that has been incorporated into the data The Data folder contains the following sub folders e CSV Contains 121 postcode area files in CSV format e NTF Contains 121 postcode area files in NTF 0 00 o MENENENENMEIN SRCSSGEEEEEEEEEEEEEIEIEEEEEIEIEEEEIEIEIIEIEIIIIIIEIEIIEEEEEEEEEEEEEEEEEEEE NEN Code Point technical specification chapter 1 v2 5 08 2008 Crown copyright Page 19 of 39 Structure of Code Point CD ROM ROOT CD INFO TXT codelist txt DISCCARE TXT metadata txt Readfirst txt Data CSV NTF Code Point content Code Point provides the following data e administrative county code e administrative district code e administrative ward code e country code e National Grid CPLC e National Health Service regional health authority code e National Health Service health authority code e postcode type e PQI and e postcode unit e number of delivery points with the same PQI as the postcode unit itself e number of delivery points that are PO boxes e number of domestic delivery points e number of non domestic delivery points e number of premises with a matched address e number of unmatched delivery points e PO box indicator and e total number of delivery points within postcode unit CO TT
27. een imported into ArcGIS and that the user has the correct permissions to edit the shapefile It is advised to try this method on a copy of the original data and not the only copy of the data in case of error Once the Shapefile is open the required new fields can be added e Right click on the layer in the Table of Contents down the left hand side of the Map window and open the Open Attribute Table First steps are to add a new column to hold the newly formatted postcode e Click on the Options button then click on Add Field This opens the following dialogue box Add Field Name Type Short Integer Y Field Properties Precision e Key in an appropriate name for example NewPC in the Name box and change the Type box on the drop down menu to text also change the Field Properties Precision Length to 8 e Click OK and the field is added Code Point user guide chapter 4 v2 5 08 2008 O Crown copyright Page 14 of 39 The final stage is to update the new column In order to populate the fields the table has to be made editable Return to the map window Do not close the attribute table as it will be required later Click on the Editor drop down selection V Untitled ArcMap ArcInfo File Edit View Insert Selection Tools Window Help mk Bx noa yj if amp Gp El FW ceoprocessing R If this tool bar is not already loaded then right click on an empty part of the grey area on the
28. entifies one or more small user postcode delivery points or an individual large user postcode There are approximately 1 7 million postcode units in the UK Post office PO box Generally a non geographic address allocated with a number by the Post Office PO boxes within ADDRESS POINT are now matched to the Royal Mail delivery office at which they are based except in the BT postcode area rather than the average of matched addresses within the postcode sector This will enable PO boxes to be matched with a PQI value of 10 Postzon A file marketed by Royal Mail that allocates a National Grid reference to each postcode unit This coordinate is derived from a 100 metre square that contains the first of the range of addresses that form the postcode unit 0 o o NENNEN Code Point technical specification annexe A v2 5 08 2008 Crown copyright Page 39 of 39
29. esentation in the subsequent section s An NTF transfer set will comprise one database The database commences with a Database Header Record DBHREC which sets up the database It will be followed by a number of Attribute Description Records ATTDESC and Feature Classification Records FEATCLASS A Code Point technical specification chapter 2 v2 5 08 2008 Crown copyright Page 22 of 39 Database Header Record DBHREC This mandatory record indicates the commencement of a database and gives details of e the database name e NTF release date e the supply option and e creation date that applies to the whole transfer set Attribute Description Record ATTDESC These records list and give descriptions of the attributes that can be applied to the features within the transfer set Feature Classification Record FEATCLASS These records list and give descriptions of the feature codes that can be present within the transfer set Section records The section records contain the Code Point data within the postcode area being transferred by that section It starts with the Section Header Record SECHREC and is followed by a number of Section Data Records that contain data on all the postcode units within the section In Code Point these data records consist of a sequence of three logical records which is repeated for each postcode unit within the section Section Header Record SECHREC This mandatory record starts a section It c
30. giving you the notice period specified in the customer contract made between you and Ordnance Survey We do not accept responsibility for the content of any third party websites referenced or accessed in or through this specification any other contractual documentation and or the Ordnance Survey website Copyright This specification including for the avoidance of doubt any mapping images reproduced herein is Crown copyright 2008 All rights reserved Any part of this specification may be copied for use internally in your organisation or business so that you can use Code Point for the purpose for which it is licensed to your organisation or business but not otherwise No part of this specification may be reproduced or transmitted in any form or by any means including electronically for commercial exploitation without the prior written consent of Ordnance Survey No part of this specification may be copied or incorporated in products services or publications that you generate for onward sale or as free promotional or support materials without the prior written consent of Ordnance Survey Using this specification The documentation is supplied in portable document format PDF only Free Adobe Acrobat Reader software which displays the specification incorporates search and zoom facilities and allows you to navigate within Hyperlinks are used to navigate between associated parts of the specification and to relevant Internet
31. ill identify the spatial position of the CPLC non geographic postcodes Special non geographic postcodes are allocated to single organisations who receive an exceptionally large amount of mail These are included in Code Point National Transfer Format NTF A vector interchange format used to distribute digital map products from Ordnance Survey that conforms to BS 7567 Electronic transfer of geographic information NTF outward code or outcode See postcode PAF Postcode Address File The PAF was created when all the separately held information was assembled and stored on a Royal Mail central computer system PAF now contains the postal addresses and postcodes of approximately 26 million delivery points in Great Britain including approximately 222 000 large users positional quality PQ The positional quality is a flag to indicate the positional accuracy of the Gridlink coordinates allocated to each postcode record All postcodes are to 1 m resolution but Gridlink will seek to provide the most accurate coordinates according to the hierarchy detailed in the following table Status value Description of status values 1 Automatically calculated to be within the building of the matched address closest to the postcode mean 2 As for status value 1 except by visual inspection of Land Line maps Approximate to within 50 m of true position Postcode unit mean mean of matched addresses with the same postcode b
32. is used to sort mail at the local delivery office For example Outward Inward NW 6 4 DP Unit Sector District Area postcode area An area given a unique alphabetic coding by Royal Mail to facilitate the delivering of mail The area is identified by one or two alpha characters at the start of the full postcode the letters being derived from a town city or district falling within the postcode area There are at present 120 postcode areas in Great Britain for example SO for Southampton MK for Milton Keynes B for Birmingham or W for London West The postcode area code constitutes the first part of the outward code postcode district A sub area of the postcode area specified by the character sub string within the first half of a full postcode which may be numeric alphabetic or alphanumeric for example 42 from MK42 6GH or 1A from W1A 4WW There are approximately 2800 postcode districts in Great Britain NOTE there are certain non geographic districts In these instances a district code is allocated to cover all large users in the postcode area postcode sector A sub area of a postcode district whose area is identified by the number third from the end of a full postcode There are approximately 9000 postcode sectors in Great Britain An example of a postcode sector code is 3 from GU12 3DH postcode unit A sub area of a postcode sector indicated by the two letters of the inward postcode which id
33. late to addresses that will not have a surveyed position Where several postcode units apply to one surveyed position for example a block of flats or offices there is an identical CPLC for each However there may be instances where the CPLC position is imprecise or approximate due to the manual allocation by Royal Mail of a postcode outside the recognised geographical extent of that postcode When discovered or notified to Ordnance Survey by customers using annexe A these will be referred to Royal Mail for possible improvement Positional quality indicator PQI The importance of checking the PQI to establish CPLC positional quality cannot be overemphasised It indicates the positional accuracy of the Code Point coordinates There are seven PQI values for the positional quality of CPLCs The order shown indicates the level of quality associated with the POI PQ10 is the most accurate and PQ90 the least The PQI assigned to the CPLC will depend on the coordinates available in ADDRESS POINT to generate the CPLC If the ADDRESS POINT PQI is PQ3 then the Code Point PQI will be PQ10 rr Code Point user guide chapter 3 v2 5 08 2008 Crown copyright Page 9 of 39 PQI Description of source ADDRESS POINT data 10 Within the building of the matched address closest to the postcode mean determined automatically by Ordnance Survey or Ordnance Survey of Northern Ireland OSNI BT postcode area only 20 As above but determined to visual i
34. lows you to navigate within Hyperlinks are used to navigate between associated parts of the guide and to relevant Internet resources by clicking on the blue hyperlinks and the table of contents The guide provides an introduction to the structure and content of the product and assumes a general knowledge of geographic information It also gives guidelines and advice on how a customer might derive the maximum benefit from the product If you are unfamiliar with any words or terms used and require clarification please refer to the glossary at the end of the document 0 00 o NENEENENMEMMKREOERERE GEE NMNEEMMEMEMMMNDDEEENN Code Point user guide preface v2 5 08 2008 Crown copyright Page 4 of 39 Chapter 1 Introduction Using this user guide A glossary of words and terms used in this user guide can be found at annexe A Code Point features With each coordinated point Code Point products provide e information about the number and type of postal delivery points in the postcode e a positional quality indicator PQI which indicates the quality of the data underlying the Code Point location coordinate CPLC e the country indicator either England Scotland Wales or Northern Ireland e the postcode type e the National Health Service region and area codes and e the local government county district and ward codes Applications of Code Point Code Point can be used to display and analyse any data colle
35. nspection by GROS General Register Office for Scotland 30 Approximate to within 50 m of true position postcodes relating to developing sites may be within 100 m of true position 40 The mean of the positions of addresses previously matched in ADDRESS POINT but which have subsequently been deleted or recoded very rarely used 50 Estimated position based on surrounding postcode coordinates usually to 100 m resolution but 10 m in Scotland 60 Postcode sector mean direct copy from ADDRESS POINT See glossary for additional information 90 No coordinates available Attributes Attribute Description Postcode Contains elements for postal area district sector and unit See Postcode in Positional quality PO box indicator Total delivery points Delivery points used to the CPLC where the PQI value is 10 or 20 Domestic delivery points Non domestic delivery PO box domestic delivery points Matched addressed premises Unmatched delivery points Easting Northing Country code NHS regional health authority code NHS health authority code Administrative county code Administrative district code Administrative ward code Postcode type this chapter Indicates the source of the data indicator used and hence the quality of the coordinates provided for each record It is determined by the best available data in ADDRESS POINT not applicable to Northern Ireland BT area Denotes if the postcode is a PO box Th
36. ontains information and parameters essential for understanding interpreting and processing some of the fields within the data It establishes the unit of measure for X and Y coordinates origins and other constants Point Record POINTREC This record identifies the start of the data for a single postcode unit and contains a feature serial number that is unique within any one section Geometry Record GEOMETRY1 This record contains the coordinate position of the postcode unit identified in the previous point record All coordinate values within Code Point are given with a precision of 1 metre Attribute Record ATTREC The Attribute Record gives the attributes or details of the postcode unit for example the postcode itself PQI and so on This logical record may have one or more continuation records to transfer all the attribute information Supply of data on media Formatted media Data requested on logically formatted media such as CD ROM as defined by current Ordnance Survey product specifications will be written directly to the output device The data files will be written to the medium sequentially See also chapter 3 in the technical specification S Code Point technical specification chapter 2 v2 5 08 2008 Crown copyright Page 23 of 39 Chapter 3 Record structures for the transfer of Code Point in NTF NTF record list This list comprises the valid record types used in the Code Point NTF transfer set Descripto
37. orm Land Line has a vector point and line structure that collectively forms 36 feature codes with a further 27 feature codes in Land Line Plus representing an accurate and detailed representation of the real world C Code Point technical specification annexe A v2 5 08 2008 Crown copyright Page 37 of 39 large user postcode A large user postcode is allocated when e afirm or business at a new address regularly receives in any one day 25 or more items of mail in a town area or 50 or more items in a rural area e a private box PO box is provided e Royal Mail Selectapost service is provided e a Business Reply or Freepost licence is taken out or e all Freepost and Business Replies have their own postcode matched address An address resulting from a match between the Land Line address data and the PAF which has been allocated a coordinate position The match may be a result of either manual or automatic matching the latter encompassing both full and fuzzy logic matching National Grid reference NGref The National Grid provides a unique reference system that can be applied to all Ordnance Survey maps of Great Britain The map of Great Britain is covered by 100 km by 100 km grid squares with the origin lying to the west of the Isles of Scilly When a National Grid reference is quoted the easting left to right direction is always given before the northing upwards direction A National Grid reference to 1 metre w
38. r Description Record name 01 Volume Header Record defines the donor and data type VOLHDREC 02 Database Header Record transfers data about the database DBHREC 40 Attribute Description Record defines attribute descriptions and their fields ATTDESC 05 Feature Classification Record defines data classifications FEATCLASS 07 Section Header Record coordinate and structure types unit scale factors SECHREC and so on 15 Point Record identifies the definition of a postcode unit POINTREC 21 Geometry Record defines the two dimensional geometry for a postcode unit CEOMETRY 1 14 Attribute Record defines the attributes or details of a postcode unit ATTREC 99 Volume Terminator Record defines the end of the transfer set VOLTERM 00 TO Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 24 of 39 Volume Header Record VOLHDREC 01 Field Position Format Value example Description REC DESC 01 02 A2 01 Record type identifier DONOR 03 22 A20 ORDNANCE SURVEY lt 5S gt RECIPIENT 23 42 A20 208 Not used TRANDATE 43 50 D8 20051110 Date of processing CCYYMMDD SERIAL 51 54 14 0000 Customer sequence number VOLNUM 55 56 2 01 Volume number always 01 NTFLEVEL 57 57 I1 2 NTF Level 2 NTFVER 58 61 R4 2 0200 NTF Version 2 00 NTFOR 62 62 A1 V Variable length records EOR 63 63 A1 Yo Sets EOR to on formatted media DIVIDER 64 64 A1 Divider used to
39. r field 21 A two digit number following square brackets denotes the record descriptor which uniquely identifies the record name between the brackets S This is the space character ASCII code 32 3S This denotes three successive space characters 96 The percentage character ASCII code 37 Record size NTF data is written to the supply media in variable length records with a maximum physical record length of 80 characters which includes CONT MARK continuation mark and EOR record terminator Continuation mark CONT MARK Continuation records are used where the maximum physical record length of 80 characters does not permit a logical record to be transferred wholly within one physical record The presence of a continuation record is indicated by the value of the continuation mark CONT MARK that immediately precedes the record terminator EOR The value of CONT MARK is 1 if there is a continuation record present and 0 if there is not Record terminator EOR The last character of each physical record is the end of record terminator which is the percent character 96 ASCII 37 Transfer set A transfer set normally equates to a single file Transfer set structure Volume records Each transfer set starts with a compulsory Volume Header Record VOLHDREC and terminates with a compulsory Volume Terminator Record VOLTERM Database records Database records transfer information common to all data and their pr
40. rowse Wi Jd Dial 8 ele lt 8 alajelm aj ollel Postcode Positional Quality Unmatched Delivery F 4B10 144 Accurate to blg auto 10 N 1 L AB10 14F Accurate to blg auto 10 N 1 4810 144 Accurate to blg auto 10 N 2 o AB101AL Accurate to blg auto 10 N 1 o AB10 14h Accurate to blg auto 10 N 3 o AB10 14P Accurate to blg auto 10 N 2 4810146 Accurate to blg auto 10 N 1 L amp B10 14R Accurate to blg auto 10 N 1 o AB10 145 Accurate to blg auto 10 N 1 Example of Code Point overlaid on to OS MasterMap NOTE to use Code Point in this way requires a separate GIS package with the relevant licences Code Point user guide chapter 2 v2 5 08 2008 O Crown copyright Page 6 of 39 Basic principles e Each postcode unit will be allocated a National Grid reference NGref of a point that falls within the notional extent of the postcode unit there may be a small number of instances where coordinates cannot be allocated e NOTE data in the BT Northern Ireland Postcode Area is geo referenced to the Irish National Grid Therefore when loading BT into a GIS you should select the Irish Transverse Mercator Grid for the correct projection If you do not apply the Irish projection the BT centroid points will not be correctly positioned For additional information relating to the Irish Grid http www osni gov uk 2 1 the irish grid pdf e Multiple postcodes in
41. s point geometry Number of coordinate pairs Easting Northing Not used No continuation record or continuation record follows Record terminator Postcodes that have no coordinated position will be given zero coordinates 00000000000000 and the positional quality indicator in the accompanying Attribute Record will be set to 0 Record examples 210000001000102725300196956 0 1 2 12345678901234567890123456789012345678901234567890123456789012345678901234567890 3 4 Template 6 7 8 S MENENENENEMEMENBRR G ENMNMNEEENNENMMENXKNEENEEENEEENENI Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 31 of 39 Attribute Record ATTREC 14 Field Position Format Value example Description REC DESC 01 02 A2 14 Record type identifier ATT ID 03 08 l6 000000 Not used IVAL TYPE 09 10 A2 PC Attribute mnemonic IVALUE 11 SO515RU Attribute value CONT MARK e A1 0 No continuation record or 1 continuation record follows EOR MT A1 Yo Record terminator The pair of fields VAL TYPE and VALUE will repeat to specify all the attributes required It may be necessary to utilise a continuation record to specify all attributes The Attribute Record will contain all or some of the following fields Attribute Fixed or mnemonic Description variable Size PC Postcode unit F AT PQ Positional quality indicator F I2 PR PO box indicator F A1 TP Total number of delivery points F I3 DQ Delivery points
42. system requirements Supply definition Code Point is only available as national cover of Great Britain and Northern Ireland and is supplied on CD ROM containing CDF and NTF data Code Point is available in e BS 7567 NTF v2 0 Level 2 and e Comma Separated Variables CSV Update Code Point is recreated quarterly using updates from Ordnance Survey field surveys and Gridlink a consortium made up of Royal Mail RM Ordnance Survey the Office of National Statistics ONS Ordnance Survey of Northern Ireland OSNI and the General Register Office for Scotland GROS via ADDRESS POINT and Boundary Line Updates are supplied quarterly Updates are provided as a complete resupply but do not include deleted postcodes File sizes File sizes for GB are as follows NTF 262 Mb CSV 140 Mb Code Point data structure The Code Point CD ROM contains two folders in the root directory Info and Data The Info folder contains the following files e Readfirst a file summarising copyright and licensing information that must be read and understood before any data files are opened e CD INFO a file summarising the content and file structure of the CD ROM e DISCCARE TXT a file summarising recommendations on the handling and storage of CD ROMS e Codelist txt a list of the ONS county district and ward codes and their full text equivalents derived from Boundary Line e Metadata txt lists the numbers of postcode units in
43. t is also the responsibility of the holder of the digital map data to ensure that any plotted or printed output contains the required copyright and database acknowledgements in a conspicuous position The product makes use of Royal Mail PAF files and Postzon OSNI ONS and GROS health authority codes Trademarks Ordnance Survey the OS Symbol ADDRESS POINT Code Point Gridlink Land Line Land Line Plus and OS MasterMap are registered trademarks and Boundary Line is a trademark of Ordnance Survey the national mapping agency of Great Britain Adobe and Acrobat Reader are registered trademarks of Adobe Systems Incorporated ArcGIS and ESRI are registered trademarks of Environmental Systems Research Institute Inc NHS is a trademark of the Department of Health Maplnfo is a registered trademark of MapInfo Corporation Microsoft and Excel are registered trademarks of Microsoft Corporation Ordnance Survey of Northern Ireland and OSNI are registered trademarks of Ordnance Survey of Northern Ireland PAF Post Office Postzon and Royal Mail are registered trademarks of Royal Mail Group plc Pentium is a registered trademark of Intel Corporation Back up provision of the product You are advised to copy the supplied data to a back up medium Using this guide The documentation is supplied in portable document format PDF only Free Adobe Acrobat Reader software which displays the guide incorporates search and zoom facilities and al
44. the product If you find an error or omission in this guide or otherwise wish to make a comment or suggestion as to how we can improve the guide please contact us at the address shown below under contact details or complete the product and service performance report form at annexe A and return it to us Contact details Our Customer Service Centre will be pleased to deal with your enquiries Customer Service Centre Ordnance Survey Romsey Road SOUTHAMPTON SO16 4GU General enquiries calls charged at local rate 44 0 8456 05 05 05 Dedicated Welsh Language HelpLine 08456 05 05 04 Textphone deaf and hard of hearing users only please 44 0 23 8079 2906 Email customerservices ordnancesurvey co uk or visit the Ordnance Survey website at www ordnancesurvey co uk This document has been screened in accordance with the requirements set out in Ordnance Survey s Equality Scheme If you have difficulty reading this information in its current format and would like to find out how to access it in a different format Braille large print computer disk or in another language please contact us on 44 0 8456 05 05 05 Use of the product The terms and conditions upon which the product including this guide is made available to you and your organisation are contained in the customer contract made between you and Ordnance Survey If there is an inconsistency between the terms of your customer contract and this guide then the terms of your cus
45. tomer contract prevail If you or your organisation has not signed a valid current customer contract then you are not entitled to use the product Purpose and disclaimer This guide is provided for guidance only and does not constitute any warranty representation undertaking commitment or obligation express or implied about the product or its suitability for any particular or intended purpose Any warranties representations undertakings commitments and obligations given by Ordnance Survey about the product and or its suitability for any particular or intended purpose are set out in your customer contract It is your responsibility to ensure that this product is suitable for your intended purpose Ordnance Survey does not accept any liability whether for breach of contract negligence or otherwise for any loss or liability you or any third party may suffer in relying on this guide and any guidance suggestion advice or explanation provided in it Any liability that Ordnance Survey has to you in relation to the product its supply use accuracy data supplied functionality or any other liability arising out of or in connection with the product is limited as set out in your customer contract We may change the information in this guide at any time without notice We do not accept responsibility for the content of any third party websites referenced or accessed in or through this guide any contractual documentation and or the Ordnance Sur
46. two dimensional coordinated point to a resolution of 1 metre Coordinates are attributed from GRIDLINK using an accuracy hierarchy Country code The code used by Office of National Statistics to indicate the country in which the Code Point georeference lies This has replaced the PAF update date field Country Code England 064 Scotland 179 Wales 220 N Ireland 152 Comma Separated Values CSV The CSV file format is commonly used to exchange data between different applications for example Microsoft Excel and Access Being text files CSV files can also be viewed in Notepad delivery point A Royal Mail defined point to which mail is delivered This may be a property private address organisation mailbox or even the name of an individual These categories are derived from The Complete Guide to Postcode Products from Royal Mail This is distinct from the addressed premise because there may be more than one organisation at an address Gridlink Gridlink is the name given to a joined up government initiative involving Royal Mail the Office for National Statistics the General Registry Office for Scotland Ordnance Survey of Northern Ireland and Ordnance Survey All these organisations are involved in the georeferencing of postcodes and the relating of postcodes to administrative and National Health areas and so on inward code or incode See postcode Land Line Ordnance Survey s definitive product range of large scale maps in digital f
47. ut not snapped to a building Postcode imputed by ONS by reference to surrounding known postcodes 6 Postcode sector mean mainly PO boxes 8 Postcode terminated No postcodes of this type will be provided by Gridlink nor should they be provided to Gridlink Consortium members may wish to hold this information for historical purposes The accuracy of the data is as indicated by its status value immediately prior to its termination 9 No coordinates available 0 0 O Code Point technical specification annexe A v2 5 08 2008 Crown copyright Page 38 of 39 postal address A postal address is a delivery point that is currently receiving mail There may be many delivery points within an individual building structure as shown in Land Line data postcode An abbreviated form of address made up of combinations of between five and seven alphanumeric characters A postcode may cover between 1 and 100 addresses The average number of addresses per postcode is 15 There are two main components of a postcode e The outward code also called outcode The first two to four characters of the postcode constituting the postcode area and the postcode district It is the part of the postcode that enables mail to be sent from the accepting office to the correct area for delivery e The inward code also called incode The last three characters of the postcode constituting the postcode sector and the postcode unit It
48. ver wee fia ass Posso eel Coed omae ento o s Dto une eos is l Template S MENENENMEKRRROONEEMMMMMMMBMEMNNENN Code Point technical specification chapter 3 v2 5 08 2008 Crown copyright Page 33 of 39 Chapter 4 Comma Separated Values CSV explained An overview of the data in CSV format CSV is a de facto standard method for delivering data This is provided to suit customers requiring a simple business use CSV can be used in a word processing package or presented as a spreadsheet Code Point information in CSV is held within individual fields Each field is either textual for example SO515RU or numeric for example 21 Within CSV each field is separated from the next by a comma If the field is textual then the text is enclosed in double quotes for example SO515RU This method of representation can also be referred to as a Comma Delimited File CDF All coordinate values within Code Point are given with a precision of 1 metre See also chapter 5 0 0 Code Point technical specification chapter 4 v2 5 08 2008 Crown copyright Page 34 of 39 Chapter 5 Record structures for the transfer of Code Point in CSV CSV fields The CSV will contain the following fields separated by commas in the following order Mnemonic Description Format Size Description PC Postcode unit AT 7 Field separator A1 1 PQ Positional quality indicator 2 1 Field separator A1 1 PR PO box indicator A1 1 Field separ
49. vey website Copyright This guide including for the avoidance of doubt any mapping images reproduced herein is Crown copyright 2008 All rights reserved 0 0 O Code Point user guide preface v2 5 08 2008 Crown copyright Page 3 of 39 Any part of this guide may be copied for use internally in your organisation or business so that you can use the product for the purpose for which it is licensed to your organisation or business but not otherwise No part of this guide may be reproduced or transmitted in any form or by any means including electronically for commercial exploitation without the prior written consent of Ordnance Survey No part of this guide may be copied or incorporated in products services or publications that you generate for onward sale or as free promotional or support materials without the prior written consent of Ordnance Survey Data copyright and other intellectual property rights The Crown or where applicable Ordnance Survey s suppliers owns the intellectual property rights in Ordnance Survey digital map data Full details of the terms and conditions under which Ordnance Survey digital map data may be processed and or manipulated or copied by a customer whether or not for use on PCs or workstations or for making hard copies are available from the Customer Service Centre please see contact details You should check the terms and conditions with us before using the data I
50. ving an inward and outward postcode code Code Point postcodes have 0 1 or 2 spaces between the in and out code The table below identifies how postcode are currently shown in the data Postcode structure Number of spaces AANNNAA 0 spaces represented as AANNNAA for example PO143RW ANN NAA 1 space represented as ANN lt gt NAA for example PO14 3RW AN NAA 2 spaces represented as AN lt gt lt gt NAA for example B1 5AP Single space postcodes Currently the Code Point postcodes are represented as above however there may be a user requirement to represent each postcode in a uniformed single space format The aim of this section is to offer some guidance on how to process the Code Point data to generate postcodes with a single space The single space instructions are applicable to both the postcode point and unit polygon products Microsofte Excel Microsoft Access Maplnfo9 and ESRI GIS systems have been included to provide guidance when using CSV and other formats The underlying theory for all of the methods is principally the same in that all current spaces are removed and then a single space added before the third character from the right NOTE the NTF format is not included in this chapter as it is not compatible to a single space format CSV single space postcodes using Microsoft Excel e Open the CSV file with Excel so the data is displayed in columns In a new blank column click in the first cell of the new
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