1. Uncertainty in the context of highway appraisal;Ashley;Transportation,1980
2. Center for Urban Transportation Research (CUTR) (1995) A New Strategic Urban Transportation Planning Process. University of South Florida, Tampa.
3. Critical decisions in the rapid transit planning process;Deen;Transportation Research Board,1976
4. Dixit, A. K. and Pindyck, R. S. (1994) Investment under Uncertainty. Princeton University Press, Princeton, NJ.
5. Conceptual model of the fixed-guideway decision process;Euritt;Transportation Research Board,1990