Safety in Numbers? The Effect of Increasing Numbers of Bicycle Commuters on Bicycle-Automobile Collisions

The idea that increasing the numbers of bicycle and pedestrians in an area lowers the automobile collision risk for individual cyclists and pedestrians is called the safety in numbers effect. This paper applies the safety in numbers effect to bicycling and pedestrian commuters in California cities from 2005 to 2011. The results indicate that cities with 10% more bicycle commuters will only see about 6% more collisions between cyclists and automobiles and thus have a lower average risk to bicycle commuters. These results are similar to those found by Jacobson (2003) although this study uses a multiple regression analysis on an expanded data set.

Name thesis:degree_name

Master of Arts (MA)

Grantor dc:publisher

University of Montana

Year

2013

Author dc:creator

• Anderson, Luke

• Bicycle Commuting
• Bicycle Safety
• Pedestrian Safety
• Safety in Numbers

Repository record dc:identifier

https://scholarworks.umt.edu/etd/854

OAI identifier oai:identifier

oai:scholarworks.umt.edu:etd-1873