Focusing the transit alternatives analysis process

Abstract

This paper explores the role of transit alternatives analyses, as defined by UMTA/FHWA technical requirements, in urban-transit decision-making. Case studies involving the Southwest Corridor of Chicago and the Dallas Area Rapid Transit Authority are reviewed. Decision-maker information needs, which differed widely between the two case studies, are outlined in terms of an emphasis on 10–15 key indices, the highlighting of trade-offs between direct and indirect impacts, and the identification of criteria where decision-maker judgment should be applied. Planning products most useful to decision-makers are identified, including the clear exposition of intangible costs and benefits. Financial cash-flow analysis, as related to implementation staging, and the well-organized management of overall evaluation results were also found to be important planning outputs in the case studies considered. Suggestions for improving planning products and the flow of information center on continuing evidence of the need for quick-response travel-analysis methods, better use of trade-off graphics, and avoiding the dangers of information overload. Several lessons learned from the case studies are listed.