Transport for London are building a detailed Cycle Infrastructure Database

Sounds great. I found the tweet and cc'd it to the OSM London twitter group plus @harrywood. Given that it is ground survey collected data (they learned from the pros :-P) I', hopeful that this is high quality data.

@jeznicholson : Have you tried to contact them yet?

No, not attempted contact, just getting it on here so that it is on the radar.

Rob, can you provide a link to the tweet?

The latest on the website about London is from 2017.
http://www.t-kartor.com/2017/05/25/t-kartor-wins-another-tfl-mapping-contract/

https://twitter.com/jhardinges/status/1050048344230453250

Hi all. TfL have now reached out to us about this cycle project. We are looking to find a time to meet them before December to discuss the publication of the data and how to use it for OSM. Anyone wishing to join should share their availability either here or via [email protected]. thanks.

Cc @gravitystorm @harrywood @richardfairhurst

I found the following page also about the project.
https://tracsistraffic.com/cycling-infrastructure-database-london/

17 months, 7days a week, 30+ surveyors

Wow, big project!

17 months, 7days a week, 30+ surveyors
Wow, big project!

Yep. It's good to remember how much time is required for mapping. Time=Money. OpenStreetMappers=Valuable.

Update: We have agreed a time to meet (11:30 on 29th November). 3 or 4 members from across the OSM community will attend in person.

Hi all. Just realised I failed to add an update here. So, we met TfL. They have surveyed every piece of cycling infrastructure in London - down to the position of individual painted cycle symbols on roads - and amassed a database of 240,000 objects. The research took 30 surveyors one year in total and covered every part of London. Each object is documented with two photos.

They intend to release this as open data and are keen that it can be incorporated in OpenStreetMap, for use in routing, cartography and analysis.

We're now looking at a sample dataset with the intention that the full dataset can be released in the near future.

The high level of existing cycle mapping in OSM means that an automated import would be neither practicable nor desirable, but the data will be very suitable for manual conflation (possibly with automated "suggestions" as per previous conflation work) and as prompts for on-the-ground survey.

We made TfL aware of the need to ensure the conflation is done carefully. Waiting to hear their views. It may just be that they leave it to us to add to OSM, but we also noted that we can train some of their staff if they want to become OSMers too :-)

I sent a follow up email to TfL this week as things have gone quiet. No response yet. Fingers crossed that this isn't a sign of problems to come.