TfL Cycling Infrastructure Database
Transport for London (TfL) have created a new database of cycling infrastructure, containing 240,000 assets, covering all of Greater London. This is proposed to be released as open data.
This groundbreaking database contains every cycle infrastructure asset within Greater London, including assets on and off-carriageway. The assets surveyed are: cycle parking; signals; signage; traffic calming measures; restricted points (e.g. steps); advanced stop lines; crossings; cycle lanes/tracks; and restricted routes (e.g. pedestrian only routes).
A demonstrator map has been made available (see below).
About the CID database
TfL’s official press release stated:
“The world’s first Cycling Infrastructure Database will be the most comprehensive database of cycling infrastructure ever collected in London. Over the past 18 months, TfL has amassed data on every street in London, cataloguing almost 146,000 cycle parking spaces, 2,000 km of cycle lanes and more than 58,000 cycle signs and street markings. This information will be released as open data alongside a new digital map of cycle routes, will make journey planning and cycle parking much easier, as well as offering valuable information to TfL and the boroughs for planning future investment in cycling.”
Each asset is accompanied by two photos illustrating it, which will considerably enhance the ability of OSM mappers to merge data in remotely.
The data is a snapshot in time ranging between January 2017 and May 2018. The data was professionally surveyed by a team of surveyors.
TfL is keen to make this available to the OpenStreetMap community under a compatible open license, to ensure maximum use of the CID. TfL is also potentially willing to consider tool development to help facilitate sensitive merging in of this data.
Demonstrator map - feedback on data invited
A demonstrator map, for the purposes only of evaluation by the OSM community at this stage, has been created by CycleStreets.
This demonstrator map contains only one of the 25 areas that have been surveyed.
We are specifically seeking comments on data quality and usefulness of this data from the OSM community. Initial analysis by CycleStreets is that the data is of excellent quality, and very suitable for conflation into OSM, to increase both comprehensiveness and metadata quality.
Usage notes: The controls on the right of the map allow the different feature types to be selected. The OSM layer (available at zoom level 19+) also provides a live feed from the OSM API, to enable quick comparisons. The two photos of each asset are in the process of being supplied; those already available and cleared in GDPR terms are included in the popup.
It is stressed that at this point, no permission is given for re-use of the data in any way, but TfL strongly intends to make this available in future. All 25 areas would be covered in the final data release, not merely the one shown currently in the demonstrator map.
CycleStreets has been commissioned by TfL to create a report (during May 2019) aimed at facilitating re-use of this data within OSM.
The deliverables of this report are to:
- Establish a mapping between the CID schema and geography types and the OpenStreetMap tagging system and geography types.
- Review the TfL open data licence and provide recommendations on licence compatibility with OpenStreetMap in regards to adding the CID data into OpenStreetMap.
- Identify options (e.g. tools, other arrangements) whereby TfL can utilise crowdsourcing to keep the CID up to date without introducing licence restrictions which are incompatible with their own open data licence.
- Undertake a comprehensive review of existing specialist OpenStreetMap data import (conflation) and data collection/data update tools. Provide recommendations as to which tool(s) are most suitable and whether any further tool development is required.
- If further tool development is required, outline the scope and engage with the relevant parties to provide TfL an estimate of the range of potential cost.
- Commence community engagement and report initial findings to TfL. In particular, is the OpenStreetMap community supportive of the data being added and are they likely to engage with the process of adding and maintaining the data? This will give TfL a better view how to proceed (e.g. is it worth proceeding to tool development and will the tools be used by the community or should TfL plan for the tools to be used by paid mappers?).
The TfL CID Schema is available.
TfL have added a further field which associates the asset feature with the relevant OSM way nearby, using a GIS analysis.
Two images accompany each asset. These are currently being processed to meet data and privacy regulation. Those already available are shown in the popups on the Demonstrator map.
TfL intends to make the data available under its open data license. This is believed to be the Transport Data Service (confirmation is being sought), which is "based on version 2.0 of the Open Government Licence with specific amendments for Transport for London".
At present, the data is not permitted to be used by third parties except for the specific purpose of evaluation through the demonstrator map noted above.
Feedback is very strongly encouraged, as soon as possible.
Please do discuss the data and related aspects noted above on the talk-gb mailing list.
Feedback and questions can also be e-mailed to: CycleStreets: info AT cyclestreets.net .
We are happy to provide any clarifications, which will be added to this page, as a central repository of information about the project.