The Effect of Truck Size and Weight on Accident Experience and Traffic Operations: Volume 2. Traffic Operations

摘要

The objective of the study was to empirically determine existing size and weight impacts on traffic flow. Based on these data, mathematical modeling was applied to examine the effects of nonexisting larger and heavier trucks on traffic flow. The scope of the study entailed an analysis of traffic operations under geometric conditions (e.g. grades, curves) which support a determination of truck size and weight effects. Flow interactions surrounding trucks in the traffic stream were examined as a function of truck size, type, loading condition, and measured weight. A sample of nearly 6,000 trucks with matched weight data was employed.