MICHIGAN STATEWIDE TRANSPORTATION MODELING SYSTEM. VOLUME X-A-2. TRAFFIC FORECASTING FOR A SPECIAL GENERATOR. STATEWIDE TRANSPORTATION PLANNING PROCEDURES

The planning required to forecast the effect a generator has on a transportation network is a common task faced by most transportation agencies. Special generators are often classified as those proposed construction projects that are large enough to have a regional or statewide impact on the transportation system. During the last two years, several transportation impact tools have been designed which appear to be applicable when analyzing this variable in relationship to the overall transportation scheme. This report discusses these techniques developed in conjunction with the Statewide Transportation Modeling System which will be useful in analyzing special generators. This process supplies the following types of impact analyses: 1) Average daily traffic on state trunkline before and after project, 2) Percent change in travel and effect on level of service, 3) Desireline diagram showing potential distribution of travel to and from special generator, and 4) Trip length frequency of traffic. /Author/