FOI request detail

vechicles velocity and density: space / time

Request ID: FOI-2394-1819
Date published: 09 January 2019

You asked

I need (for academical reseach purposes) vechicles' velocity and density data from London roads (e.g. 50 cameras), for standard time periods (e.g. every 5 minutes), so that they are connected to car accidents, using spatial correlation methods and testing new analytical approaches. Car accidents' data for the same periods and locations would also be usefull, so that the results are more precise than connecting the velocity, density data, to other time periods. This data is similar to road "status" from api.tfl, but "status" is not enough for this research

We answered

TfL Ref: 2394-1819

Thank you for your email received by us on 10 December 2018 asking for information about vehicle speed and car collision data.

Your request has been considered in accordance with the requirements of the Freedom of Information (FOI) Act and our information access policy. I can confirm we hold the information you require.

The information you asked for is available on our website using the following links: - traffic speed and density reports - periodical based road collision map and reports

In accordance with section 21 of the FOI Act, we are not obliged to supply you with a copy of the requested information as it is already accessible to you elsewhere.

If this is not the information you are looking for, or if you are unable to access it for some reason, please do not hesitate to contact me.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely

Jasmine Howard
FOI Case Officer
Information Governance
Transport For London

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