摘要: |
Benefit assessment is done to make decisions, and a general discussion is given of how to view benefits for that purpose. Benefit assessment practices from many agencies in the United States are described. Agencies' reported benefits and their use of benefit measures in actual practice are compared. The political environment surrounding transit decisions was found to have a major effect on procedures that are adopted for benefit analysis. The paper also shows how consequences of transit can be illustrated through the use of a benefit tree, which allows planners to show how transit service provides an alternative means of travel, results in changes of trip making by automobile and transit, affects land-use activity, and leads to direct and indirect employment. Approaches are described for quantifying benefits. As an example, a method is presented for calculating the enhanced consumer surplus as a broad measure of user benefits of a project alternative. Recommendations are made on how to effectively use benefit measures for selection of project alternatives within a political decision-making environment. |