Impact Methodologies

Transportation System Performance

Case Studies

Envision Utah - Salt Lake City, UT

The travel model is modified to incorporate a walk/bike travel mode. Mode choice is determined in part based on land use-related variables.

Portland, OR

A regional truck model is used in conjunction with the travel demand model to assess the benefits of actions that would improve conditions for freight travel.

Sacramento, CA

A state-of-the-practice travel demand model and an integrated transportation-land use model are both used to measure the travel and emissions impacts of transportation and land use policies. The results from the two models are compared.

Other case studies including Albany, Montgomery County, and SPARTACUS also highlight measures of transportation system performance, although specific advances to travel modeling techniques are not described.