GeoPlace Data Entry Conventions and Best Practice for Streets A Reference Manual DEC-Streets Version 4.1 June 2019 The DEC-Streets version 4.1 is the reference document for the NSG User, street works and Statutory Undertaker communities. DCA-DEC-CG [email protected] Page intentionally blank © GeoPlace™ LLP GeoPlace Data Entry Conventions and Best Practice for Streets (DEC-Streets) Version 4.1, June 2019 Page 2 of 223 Contents Contents Contents ______________________________________________________________________ 3 List of Tables ______________________________________________________________________ 9 List of Figures _____________________________________________________________________10 Related Documents ________________________________________________________________12 Document History _________________________________________________________________13 Policy changes in DEC-Streets Consultation Version 4.1 ____________________________________15 Items under review ________________________________________________________________16 1. Foreword _____________________________________________________________17 2. About this Reference Manual _____________________________________________19 2.1 Introduction ___________________________________________________________19 2.2 Copyright ______________________________________________________________20 2.3 Evaluation criteria _______________________________________________________20 2.4 Definitions used throughout this Reference Manual ____________________________20 2.5 Alphabet, Punctuation and Abbreviation rules ________________________________21 2.5.1 General Principles _______________________________________________________21 2.5.2 Character sets __________________________________________________________21 2.5.3 Alphabet ______________________________________________________________22 2.5.4 Punctuation ____________________________________________________________23 2.5.5 Abbreviations __________________________________________________________23 2.5.6 Case __________________________________________________________________23 2.5.7 Numbers ______________________________________________________________24 2.5.8 Use of personal information _______________________________________________24 2.6 How to comment on this Reference Manual __________________________________24 3. Introduction to this Reference Manual ______________________________________25 3.1 Purpose of this Reference Manual __________________________________________25 3.1.1 Background ____________________________________________________________25 3.2 Scope of this Reference Manual ____________________________________________26 3.3 Types of organisation ____________________________________________________27 3.4 Content from Group 1 NSG Users ___________________________________________29 3.5 Scope of Group 1 NSG Users _______________________________________________30 4. Street Naming and Numbering ____________________________________________32 4.1 Street Name Legislation __________________________________________________32 4.2 Street Names __________________________________________________________33 4.3 SNN Procedure _________________________________________________________33 5. Streets – Types of Street _________________________________________________35 5.1 Types of Street - Definition and Background __________________________________35 5.2 Types of Street - Policy ___________________________________________________35 5.2.18 Procedure when it is proposed to change the USRN of an existing length of Street ____38 5.3 Types of Street – Conventions _____________________________________________39 5.3.1 Introduction ___________________________________________________________39 © GeoPlace™ LLP GeoPlace Data Entry Conventions and Best Practice for Streets (DEC-Streets) Version 4.1, June 2019 Page 3 of 223 Contents 5.3.2 Types of Street - Conventions for type 1 Street – Named Street with a designated Street Name _________________________________________________________________41 5.3.3 Types of Street - Conventions for overlapping Streets on a type 1 Street – Named Street with a designated Street Name ____________________________________________41 5.3.4 Types of Street - Conventions for a type 2 Street – Officially Described Street ________42 5.3.5 Types of Street - Conventions for a type 3 Street – Numbered Street with a Street number _______________________________________________________________45 5.3.6 Types of Street - Conventions for a type 4 Street - Unofficial Street Name _____________47 5.3.7 Types of Street - Conventions for Street Description data ________________________48 5.3.8 Types of Street - Conventions for Cycle Routes ________________________________49 5.3.9 Types of Street - Conventions for Terraces ___________________________________50 5.3.10 Types of Street - Conventions for Permissive Paths _____________________________52 5.4 Types of Street - Best Practice _____________________________________________52 5.4.1 Introduction ___________________________________________________________52 5.4.2 Types of Street - Best Practice for the life Cycle of Streets _______________________54 6. Streets - Geometry Types ________________________________________________57 6.1 Street Geometry Types - Background and Definitions ___________________________57 6.2 Street Geometry Types - Policy ____________________________________________57 6.3 Street Geometry Types - Conventions _______________________________________57 6.3.1 Street Geometry Types – Conventions – General ______________________________57 6.3.2 Street Geometry Types – Conventions – General Level 1 ________________________58 6.3.3 Street Geometry Types – Conventions - Level 2 ________________________________58 6.3.4 Street Geometry Types - Conventions - Level 3 ________________________________58 6.3.5 Street Geometry Types – Conventions - Mixed Gazetteers _______________________59 6.3.6 Street Geometry Types – Conventions - Extremity Points ________________________59 6.3.7 Street Geometry Types - Best Practice _______________________________________61 7. Streets - Motorways _____________________________________________________62 7.1 Motorways - Definition and background _____________________________________62 7.2 Motorways - Policy ______________________________________________________62 7.3 Motorways - Conventions _________________________________________________64 7.3.2 Motorways - Conventions - Types of Street Record _____________________________64 7.3.3 Motorways - Conventions - Source of USRN __________________________________64 7.3.4 Motorways - Conventions - Junction to Junction and Through Junctions ____________65 7.3.5 Motorways - Conventions - Slip Roads and Link Roads __________________________65 7.3.6 Motorways - Conventions - Roundabouts ____________________________________66 7.3.7 Motorways - Conventions - Motorway Service Stations _________________________66 7.3.8 Motorways - Conventions - Naming Junction to Junction Sections _________________67 7.3.9 Motorways - Conventions - Naming Through Sections __________________________68 7.3.10 Motorways - Conventions - Naming Complex Junctions _________________________68 7.3.11 Motorways - Conventions - Naming Slip & Link Roads ___________________________69 7.3.12 Motorways - Conventions - Naming Slip Roads (services only) ____________________69 7.3.13 Motorways - Conventions - Naming Link Roads ________________________________69 7.3.14 Motorways - Conventions - ASD for Motorways _______________________________69 © GeoPlace™ LLP GeoPlace Data Entry Conventions and Best Practice for Streets (DEC-Streets) Version 4.1, June 2019 Page 4 of 223 Contents 7.4 Motorways - Best Practice ________________________________________________70 7.4.1 Position of on and off slip centreline ________________________________________70 8. Streets - Public Rights of Way (PRoWs) ______________________________________71 8.1 Public Rights of Way (PRoWs) - Definition and Background ______________________71 8.2 Public Rights of Way (PRoWs) - Policy _______________________________________72 8.3 Public Rights of Way (PRoWs) - Conventions - General __________________________73 8.4 Public Rights of Way (PRoWs) - Conventions - Naming __________________________76 8.5 Public Rights of Way (PRoWs) - Best Practice __________________________________78 9. Street state, surface and Highway Dedication ________________________________80 9.1 Definition and Background ________________________________________________80 9.2 Street state ____________________________________________________________80 9.2.1 Street state - Definition and Background _____________________________________80 9.2.2 Street state - Policy ______________________________________________________80 9.2.3 Street state - Conventions ________________________________________________80 9.2.4 Street state – Best Practice ________________________________________________82 9.3 Street Surface __________________________________________________________82 9.3.1 Street Surface - Definition and Background ___________________________________82 9.3.2 Street Surface - Policy ____________________________________________________83 9.3.3 Street Surface - Conventions ______________________________________________83 9.3.4 Street Surface - Best Practice ______________________________________________83 9.4 Highway Dedication _____________________________________________________83 9.4.1 Highway Dedication - Definition and Background ______________________________83 9.4.2 Highway Dedication - Policy _______________________________________________84