BS-7666-4-2002.pdf

BRITISH STANDARD BS 7666-4:2002 Spatial data-sets for geographical referencing Part 4: Specification for recording public rights of way ICS 35.240.70; 07.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:32:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7666-4:2002 This British Standard, having been prepared under the direction of the DISC Board, was published under the authority of the Standards Policy and Strategy Committee on 18 February 2002 © BSI 18 February 2002 First published November 1996 Second edition February 2002 The following BSI references relate to the work on this British Standard: Committee reference IST/36 Draft for Comment 01/653401 DC ISBN 0 580 38907 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee IST/36, Geographical information, upon which the following bodies were represented: Association for Geographical Information Babtie Group Ltd BP Amoco British Geological Survey Defence Geographic and Imagery Intelligence Agency IDEA Infoshare ISLINKUP Ordnance Survey Ordnance Survey Northern Ireland Royal Institution of Chartered Surveyors SIAM Ltd University of East London University of Sheffield Amendments issued since publication Amd. No.DateComments Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:32:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7666-4:2002 © BSI 18 February 2002 i Contents Page Committees responsibleInside front cover Forewordii Introduction1 1Scope1 2Normative references1 3Terms and definitions and abbreviations2 4The basis for a public rights of way data-set4 5Entity contents6 Annex A (informative) Checklist for verification of conformity14 Annex B (informative) Highways and users14 Bibliography15 Figure 1 Relationships between fundamental entities in BS 7666iii Figure 2 PROW entity relationships5 Table 1 PROW logical entities4 Table 2 Surveying authority6 Table 3 District authority6 Table 4 Local area7 Table 5 Public Rights of Way8 Table 6 PROW status code8 Table 7 PROW link9 Table 8 Link geometry10 Table 9 Link type code11 Table 10 Link surface code11 Table 11 Furniture12 Table 12 Furniture descriptions12 Table 13 Promoted route13 Table 14 Promoted route element13 Table B.1 Relationship between types of highway and types of user14 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:32:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7666-4:2002 ii© BSI 18 February 2002 Foreword This part of BS 7666 has been prepared under the direction of Technical Committee IST/36, Geographic information. It supersedes BS 7666-4:1996, which is withdrawn. BS 7666-4 was originally prepared by the Public Rights Of Way Working Party for the Local Authorities Associations Geographic Information Advisory Group (formerly the Geographic Information Steering Group). BS 7666 is published in the following parts: Part 1: Specification for a street gazetteer; Part 2: Specification for a land and property gazetteer; Part 3: Specification for addresses; Part 4: Specification for recording of public rights of way. Parts 1, 2 and 4 specify the contents of data-sets, whilst Part 3 specifies a format and is an enabling mechanism for creating references. Part 1 specifies the data to be maintained in a gazetteer of streets. It specifies ways of referencing a street so that data can be accessed by street name, description, route number or unique reference number, and the means for specifying its spatial location. A street provides a basic reference for use in each of the other parts of the standard. Part 2 specifies the data to be maintained in a gazetteer of land and property. A land and property gazetteer is built around the concept of a basic land and property unit (BLPU). Each BLPU is uniquely identified by one or more land and property identifiers (LPIs), which include a reference to a street as defined in Part 1, and an address as defined in Part 3. Part 3 specifies a model and structure for an address and provides a means by which an address may be constructed. The purpose of an address is to provide a description of a real-world object by reference to its location. An object for which an address may be constructed is termed an “addressable object”. Part 4 specifies the format for a data-set for recording public rights of way. A public right of way is referenced to a street as defined in Part 1. Each part of the standard is drafted around the concept of fundamental entities. The relationships between these fundamental entities are shown in Figure 1. Annex A and Annex B are informative. This standard was drafted on the assumption that the execution of its provisions is entrusted to appropriately qualified and competent people. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:32:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7666-4:2002 © BSI 18 February 2002 iii Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. NOTEThe concepts, terminology and diagramming standards used in this part of BS 7666 are based on the Structured Systems Analysis Design Method in accordance with BS 7738-1 for logical modelling Entities are denoted by boxes. A box within a box is used to show that one entity is a sub-type of another (super-type). For example “basic land and property unit” is a sub-type of “addressable object”. Relationships between entities are denoted by lines between the boxes, with the description of the relationship reading clockwise. For example, a basic land and property unit is identified by many land and property identifiers, and a land and property identifier identifies one basic land and property unit. Key Figure 1 Relationships between fundamental entities in BS 7666 Addressable object Basic land and property unit identified by identifies has of Land and property identifier Address references referenced by Street incorporates covers Public right of way One-OneOne-ManyMany-Many “Mandatory“ (Always exists) “Optional“ (Might not exist) “Optional/Mandatory“ (“Optional“ one way “Mandatory“ the other) Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:32:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:32:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7666-4:2002 © BSI 18 February 2002 1 Introduction Public Rights of Way (PROWs) are routes over land in England and Wales along which any member of the public has the right to pass or repass. Designated local authorities, referred to as “surveying authorities” throughout BS 7666, have a statutory duty to record these in the form of a definitive map and statement. A surveying authority may be a unitary authority, a county council, a metropolitan district council or a London borough council. National Parks may have delegated powers related to public rights of way from one or more highway authorities in respect of surveying and highway powers within their boundaries. The surveying authority is also the highway authority. This part of BS 7666 is designed as a natural progression in the referencing process as defined by a “street” within BS 7666-1. This standard restricts itself purely to footpaths, bridleways and certain other defined tracks, collectively known as Public Rights of Way, as defined by Acts of Parliament listed in the Bibliography. BS 7666-4 is also intended to improve the quality of the National Street Gazetteer, which contains entries for all streets, as defined in BS 7666-1. The primary purpose of the National Street Gazetteer is within an array of highway information systems, including the legal duty to maintain a register of street works. The inclusion of PROWs will assist in the compilation of both local authority and the National Street Gazetteer. Further benefits of BS 7666-4 are that the quality and extent of the rights of way attributes found in BS 7666-4 provide a unique base for groundwork maintenance and legal purposes and may act as a basis for the development of a sound geographic information system (GIS). 1 Scope BS 7666-4 specifies data to be recorded for public rights of way in England and Wales. NOTE 1The standard is applicable in principle to other countries and regions but may require modification to accommodate local requirements, such as grid referencing in Northern Ireland. The standard specifies ways of referencing a public right of way so that data can be accessed by name, description, route number or unique reference. It also specifies the means of representing its spatial location. A format is also specified in the form of a logical data model for recording a set of other related data such as the surveying authority and the event history. This standard specifies what needs to be recorded for assessing or verifying the quality of the data. NOTE 2A checklist for verification of conformity is given in Annex A. More specifically, BS 7666-4 specifies the form, content and internal relationships of a spatial data-set for geographical referencing of PROWs to: a) optimize the use of resources involved in the design, compilation and use of such data-sets; b) permit the ready exchange and aggregation of such data-sets from several sources; c) facilitate the design of common information systems, which may be databases or Geographic Information Systems; d) enable different users of the same data to use it with consistency of content, accuracy, currency and format. PROWs defined within relevant parliamentary acts are those maintained by highway authorities in the discharge of their statutory duties. This standard is therefore directed toward developers and users of PROW spatial data-sets in their professional work, such as those working within leisure and recreational management or local land charges, or those with other interests in public rights of way generally. 2 Normative references The following normative document contains provisions which, through reference in this text, constitute provisions of this part of this British Standard. For a dated reference, subsequent amendments to, or revisions of, this publication do not apply. For an undated reference, the latest edition of the publication referred to applies. BS 7666-1, Spatial data-sets for geographical referencing Part 1: Specification for a street gazetteer. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:32:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7666-4:2002 2© BSI 18 February 2002 3 Terms and definitions and abbreviations 3.1 Terms and definitions For the purposes of this part of BS 7666, the following terms and definitions apply. NOTEThese terms and definitions are derived from Part III of the Wildlife and Countryside Act 1981 1 or other legislation as stated. 3.1.1 bridleway way along which the public has a right of way on foot, on horseback or on a pedal cycle 3.1.2 byway open to all traffic (BOAT) highway along which the public has a right of way on foot, on horseback or in or on vehicles NOTEBOATs are used by the public mainly for the purposes for which footpaths and bridleways are used. BOATs are used mainly by walkers, cyclists and horse-riders. 3.1.3 cycle track footpaths that have been legally converted to provide a way on foot and on pedal cycle NOTEThis definition is derived from the Cycle Tracks Act 1984 2. Cycle tracks may or may not be PROWs. 3.1.4 definitive map and statement information maintained by the surveying authority providing the legal record of the publics rights to walk, ride or drive on public rights of way and containing particulars as to the position and width of the ways and as to any limitations or conditions affecting the way NOTEThe law does not currently recognize the definitive map and statement in any medium other than paper. Working copies of these documents, which contain records of legal changes to the current map, may be maintained in GIS or database formats. 3.1.5 event coming into operation of an order, agreement or other legal instrument, which creates, widens, diverts, extinguishes or changes the status of a public right of way, or the preparation of a consolidated definitive map and statement NOTE 1Status changes are determined by the taking effect of an order under Part III of the Wildlife and Countryside Act 1981 1. NOTE 2The preparation of a consolidated definitive map and statement is determined by Section 57 of the Wildlife and Countryside Act 1981 1. 3.1.6 footpath way over which the public has a right of way on foot NOTEA footpath is not to be confused with a “footway” or “pavement”, which is set aside for pedestrians at the side of a road and is therefore part of the street as defined in BS 7666-1. 3.1.7 furniture objects associated with a PROW, legally retained, placed or constructed to aid and assist the public in their right to pass and repass NOTEExamples of furniture are stiles, signposts and steps. 3.1.8 furniture description code code identifying types of furniture 3.1.9 link continuous subdivision of a PROW NOTEThe position of a link is defined by its intersection with another street, including another PROW and/or by its extremity points and/or a local area boundary. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 10:32:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7666-4:2002 © BSI 18 February 2002 3 3.1.10 link surface character descriptor of the surface of a PROW NOTEAn example of a link surface is “natural”. 3.1.11 link type descriptor of the nature of a PROW NOTEExamples of link types are “cross-field” and “headland”. 3.1.12 local area geographical area within which the PROW is located NOTE 1The local area of a PROW is usually the administrative area in which the PROW is located. NOTE 2An example of a local area is a “parish”. 3.1.13 promoted route route comprising a series of promoted route elements with a specific geographical identity NOTEAn example of a promoted route is “The Pennine Way”. 3.1.14 promoted route element whole or part of a link containing a length of a promoted route 3.1.15 public right of way (PROW) legally defined route over land in England and Wales along which any member of the public has the right to pass and repass 3.1.16 restricted byway highway over wh