Trip Distribution and Traffic Assignment

Trip distribution is used to determine the directional percentages for the vehicles entering and leaving the new site location. This should be based on site location within the community and typical travel patterns expected for the site. Traffic assignment takes those trip percentages, and multiplies the output from trip generation for the site to determine actual roadway volumes associated with the site, and total volumes expected after building the site.

For the example, the trip distribution and site impact analysis are combined:




           

           

The user should either go back to the Data Elements page or to the Site Map to continue.