Narelle Haworth and Ashim Kumar Debnath at the Centre for Accident Research and Road Safety-Queensland, Queensland University of Technology, Australia have examined the question, how similar are two-unit bicycle and motorcycle crashes? with the results being published in the Journal Accident Analysis and Prevention. However despite the Australian taxpayer funding the Queensland University of Technology and paying Professor Haworth’s salary we have to pay again to get access to the article so I only have the abstract here. If you have access to a University library you maybe able to get a copy of the paper via your library for research or teaching purposes.
The highlights from the paper (as suggested by the authors) are:
- Many characteristics are similar among two-unit bicycle and motorcycle crashes.
- Patterns of fault and factors affecting fault are mostly similar for these crashes.
- Some differences exist because of differences in usage patterns and travel speeds.
- Child bicyclists are more often regarded to be mostly at-fault.
- Rule violations by riders and drivers are more common in motorcycle crashes.
The abstract of the paper follows …
This paper explores the similarities and differences between bicycle and motorcycle crashes with other motor vehicles. If similar treatments can be effective for both bicycle and motorcycle crashes, then greater benefits in terms of crash costs saved may be possible for the same investment in treatments. To reduce the biases associated with under-reporting of these crashes to police, property damage and minor injury crashes were excluded. The most common crash type for both bicycles (31.1%) and motorcycles (24.5%) was intersection from adjacent approaches. Drivers of other vehicles were coded most at fault in the majority of two-unit bicycle (57.0%) and motorcycle crashes (62.7%). The crash types, patterns of fault and factors affecting fault were generally similar for bicycle and motorcycle crashes. This confirms the need to combat the factors contributing to failure of other drivers to yield right of way to two-wheelers, and suggest that some of these actions should prove beneficial to the safety of both motorized and non-motorized two-wheelers. In contrast, child bicyclists were more often at fault, particularly in crashes involving a vehicle leaving the driveway or footpath. The greater reporting of violations by riders and drivers in motorcycle crashes also deserves further investigation.
The full citation of the paper is:
Haworth, N. & Debnath, A. K. (2013). How similar are two-unit bicycle and motorcycle crashes? Accident Analysis & Prevention, 58, 15-25.