Transportation impact studies (TISs) are evaluations of land use actions in terms of transportation issues and needs. How many trips would be generated and where would they go? How will traffic affect roads? What are the opportunities for alternative modes-walking, biking and transit? Will increased road capacity be needed? What about new or improved traffic signals, changes in access? Who should pay for improvements?
Based on well-prepared TISs, agencies can make informed decisions about needed improvements, service changes, and financing.
This report is based on discussions starting in late 2006 with the local and state agencies in Ada and Canyon Counties, Idaho. Staff and elected officials expressed concern that the TISs were sometimes deficient in evaluating the total scope of transportation demand or that agencies were often unaware of TISs for more regionally critical land use actions. As the region becomes more metropolitan, consideration of the transportation effects of larger, more complex land use changes is critical.
The Regional Technical Advisory Committee (RTAC) of COMPASS, and a subgroup of RTAC, titled the Work Group, discussed TIS issues. The intent of this document is to lay out strategies that could improve the way TISs are done.
To view the Transportation Impact Studies Recommended Practices report, click here (2.44MB).
For More Information Contact:
Charles Trainor, COMPASS