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A note on the modelling of TfL fixed speed camera data

Maher, MJ; (2015) A note on the modelling of TfL fixed speed camera data. Green open access

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Abstract

The note describes the analysis and modelling of data on Transport for London's fixed and red-light speed cameras. It firstly investigates the data to see what can be deduced about the distribution of the site selection period (SSP) for the cameras, and how best to model the data using the four time period method to avoid the problem of regression to the mean. The objective is to determine what effect the cameras have had on reducing PICs (personal injury collisions) and FSCs (fatal and serious collisions).

Type: Report
Title: A note on the modelling of TfL fixed speed camera data
Open access status: An open access version is available from UCL Discovery
Additional information: The note was prepared for informal discussions with TfL staff. The work was carried out independently and without any financial or other assistance from TfL apart from the provision of the data.
Keywords: Speed cameras, Statistical modelling
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1474826
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