Evaluating the Effectiveness of Highway Safety Improvements

by Kenneth S. Opiela, JHK & Associates, Alexandria, VA, USA,

Abstract: The need exists for better information relative to the effectiveness of various safety treatments and actions. Reliable measures of effectiveness are required for determining the most appropriate safety improvement for an identified hazardous location. Since the performance of various safety treatments and actions is influenced by local laws, driver attitudes, design standards, climatic conditions, and roadway features, it is useful to develop such measures for each agency. At present a well-established set of accident reduction factors does not exist. A systematic procedure for an agency to develop a set of accident reduction factors has been proposed.

Subject Headings: Safety | Traffic signs | Highway and road design | Traffic accidents | Information management | Driver behavior

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