Use of open data to assess cyclist safety in London
File(s)Collins_Graham_R1-Copy.pdf (6.32 MB)
Accepted version
Author(s)
Collins, DJ
Graham, DJ
Type
Journal Article
Abstract
This study develops a predictive model for cycling collisions in London. Specifically, the effects of bus lanes, parking or loading facilities, and multilane roads on the risk of cycling collisions are considered. To the best of the authors’ knowledge, this is the first such predictive collision model that develops covariates to measure the characteristics of different types of road infrastructure within zones. A kernel density estimator is used to identify 90 collision hotspots. Each hotspot is populated with information regarding the highway infrastructure within it. A multiple linear regression model tests for the statistical significance of the infrastructure variables. Bus lanes, multilane roads, and 30-mph speed limits are found to affect cycle collision counts, whereas junction density has the largest impact on collision density. Speed limits of 20 mph affect collision counts to a lesser degree than 30 mph, indicating potential safety improvement from reducing speed limits. One-way roads are found to reduce the risk of collisions, along with the provision of priority junctions. This infers that other junction types, such as roundabouts and signalized junctions, present a higher collision risk. The models produce conflicting results on parking or loading provision. The models are expanded to include sociodemographic variables, such as population and employment. The combined model offers no performance improvement over the infrastructure-only model, although a potential link between public transport provision and reducing cycle collisions warrants further investigation.
Date Issued
2019-04-02
Date Acceptance
2019-02-08
Citation
Transportation Research Record, 2019, 267 (4), pp.27-35
ISSN
0361-1981
Publisher
SAGE
Start Page
27
End Page
35
Journal / Book Title
Transportation Research Record
Volume
267
Issue
4
Copyright Statement
© 2019 National Academy of Sciences: Transportation Research Board. The final, definitive version of this paper has been published in Collins, D. J., & Graham, D. J. (2019). Use of Open Data to Assess Cyclist Safety in London. Transportation Research Record, 2673(4), 27–35 by Sage Publications Ltd. All rights reserved. It is available at: https://doi.org/10.1177/0361198119837221
Identifier
https://journals.sagepub.com/doi/10.1177/0361198119837221
Subjects
Science & Technology
Technology
Engineering, Civil
Transportation
Transportation Science & Technology
Engineering
KERNEL DENSITY-ESTIMATION
GEOSPATIAL ANALYSIS
TRAFFIC CRASHES
MOTOR-VEHICLE
HOTSPOTS
HIGHWAY
RISK
0905 Civil Engineering
1205 Urban and Regional Planning
1507 Transportation and Freight Services
Logistics & Transportation
Publication Status
Published
Date Publish Online
2019-04-02