ARTERIAL OPERATIONS IN ADVERSE WEATHER

This paper describes weather impacts on arterial operations and discusses research projects to quantify these impacts. These projects have documented speed reductions, decreased volume, reduced saturation flow rates, and increased delay. The benefits of weather-responsive signal timing and weather affects on traffic simulation parameters are also explored. Federal Highway Administration (FHWA) activities to advance the state-of-the-practice in weather-responsive traffic management are introduced in the paper.