About Mosaic

Mosaic is Oregon’s value and cost informed transportation planning tool, developed by the Oregon Department of Transportation (ODOT) in collaboration with stakeholders representing the federal government; metropolitan planning organizations (MPOs); area commissions on transportation (ACTs); and the public transit, environmental, and business communities.

The development of Mosaic was initiated by Oregon’s 2009 Jobs and Transportation Act, which called for ODOT to develop a least cost planning methodology to help inform transportation decision making. The term "least cost" is defined by the Act (now Oregon Revised Statutes [ORS] 184.653) as:

"a process of comparing direct and indirect costs of demand and supply options to meet transportation goals, policies or both, where the intent of the process is to identify the most cost effective mix of options."