2000 - USA - Effect of Environmental Factors on Free-Flow Speed

This paper reports on a study that has been conducted as part of an Intelligent Transportation System field operational test of a storm warning system located on an isolated rural section of Interstate 84 in southeastern Idaho. The system is designed to give drivers advanced information on weather and roadway conditions. The data collected as part of this study provide new insights on how environmental conditions affect free-flow speed on freeway facilities.