The purpose of this study is to develop effective policies and programs to address the current disproportionate involvement of motorcyclists in serious casualty crashes. There is a need to understand in detail the individual and interactive effects that environmental, vehicle and road user factors have on the involvement and injury outcome of motorcyclists in serious injury crashes.

This study has two distinct aims:
1. To develop an understanding of the influence of the total system, i.e. the rider, the vehicles and the crash
site on the nature and pattern of injuries sustained by seriously injured motorcyclists, and
2. To examine causal relationships between human, vehicle, road and other environmental factors and
motorcyclists involvement in serious injury crashes

In order to meet the objectives and aims of the study, the scope of this work involves the conduct of an in-depth study of motorcyclists who have been seriously injured in a crash on NSW roads with a review of the crashes conducted by our multi-disciplinary review team.