Analysis of Roadside Accident Frequency and Severity and Roadside Safety211 Management

摘要

In Washington State, priority programming for evaluating accident prevention and211u001emitigation (safety improvement) involves analysis of roadside features, but the 211u001eeffects that such features have on the frequency and severity of accidents is not 211u001ewell understood. This study investigated the relationships among roadway 211u001egeometry, roadside characteristics, and run-off-roadway accident frequency and 211u001eseverity to provide a basis for identifying cost-effective ways to improve 211u001ehighway designs that will reduce the probability of vehicles leaving the roadway 211u001eand the severity of accidents when they do.