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Public Rights of Way Progress

County Parishes RoWs LTotal LMapped % GIS Update
Cambridgeshire 233 4089 3218 km 447 km 13% 2017‑05‑04
Hertfordshire 137 5363 3138 km 140 km 4% 2017‑04‑05
Norfolk 546 5725 3841 km 3162 km 82% 2017‑03‑16
Oxfordshire 322 5936 4208 km 259 km 6% 2016‑10‑17
Suffolk 484 10395 5719 km 1024 km 17% 2015‑08‑31

About this tool

This tool takes information about Public Rights of Way from four sources and flags up possible errors / omissions / things to check. Currently only a handful of counties are available, but hopefully more will be added in due course. The data sources are:

  1. Official GIS data from County Councils. Many councils now digial versions of the legal 'Definitive Map' document they are obliged to maintain. The data includes vector routes, path numbers, designations, lengths and bounding boxes are extracted automatically from data files.
  2. Volunteer-Mapped data from OpenStreetMap. Path numbers, designations, lengths, bounding boxes, last update details, etc. can be extracted automatically on a parish by parish basis using the XAPI. The tool will extract all ways with a prow_ref=* tag within the parish's bounding box.
  3. Definitive Statements. These are written documents providing textural desciptions of each Public Right of Way. Some councils have only paper records, but many now have digital versions. Sometimes these are unstructured formatted text documents (and so data needs to be manually extrated) but other councils have databases or spreadsheets (which allow automatic extraction of route numbers and statuses.
  4. Manual classification of OSM completion level. This would be entered by tool users, after comparing the official data with the curernt mapping in OSM.

I've got scripts to do the extraction from first two sources set up, but I currently have to initiate the updates manually. I can do the third and fourth behind the scenes, but eventually the plan is to have a public Web interface.

With the data the tool can then flag up issues such as:

The tool is currently under development, so various key bits of functionality are not implemented yet. For details see the Known Issues and To Do List.

Suggested uses for OSM Mapping