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Federal, state and local governments spend roughly 5 percent of their total expenditures on transportation: roads, bridges, tunnels, public transit, ports, etc. Such projects and programs are intended to support the efficient movement of people, goods and services, but also impact livability and other societal goals. The 2012 federal transportation reauthorization, MAP-21, is calling for more performance-based decision-making.
A recent research project...
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Recent federal and state policies are placing increasing emphasis on using comprehensive transportation performance measures to guide transportation decision making processes covering policy areas ranging from mobility, safety, economy and livability, to issues of equity and environment. While it is relatively easy to build consensus on mobility measures that center on the transportation system alone, it is much harder for performance measures to incorporate both transportation and land use, loosely defined as accessibility measures, even with continuous efforts to catalog and design such measures.
Two projects at PSU sponsored by Oregon DOT and National Institute of Transportation Communities (NITC) aim to to develop and evaluate Transport Cost Index (TCI), a comprehensive performance measure for transportation and land use, in order to fill important gaps in popular accessibility measures:
