A test of inter-modal performance measures for transit investment decisions |
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Authors: | Li Jianling Wachs Martin |
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Institution: | (1) School of Urban and Public Affairs, University of Texas, Arlington;(2) Institute of Transportation Studies, University of California, Berkeley, CA 94720, USA |
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Abstract: | Choices among alternative transit capital investments are often complex and politically controversial. There is renewed interest
in the use of performance indicators to assist in making rational and defensible choices for the investment of public funds.
To improve the evaluation of rail and bus performance and provide more useful information for transit investment decision-makers,
it is important to use performance indicators that fairly and efficiently compare different transit modes. This paper proposes
a set of inter-modal performance indicators in which service input, service output, and service consumption are measured by
total cost, revenue capacity miles/hours, and unlinked passenger trips/miles respectively based on economic principles and
evaluation objectives. The proposed improvements involve the inclusion of capital as well as operating costs in such comparisons,
and the recognition of the widely varying capacities of transit vehicles for seated and standing passengers. Two California
cases, the Los Angeles – Long Beach Corridor and the Market/Judah Corridor in San Francisco, are used for testing their usefulness
in the evaluation of the efficiency and effectiveness of rail and bus services. The results show substantial differences between
performance indicators in current use and those proposed in this study. The enhanced inter-modal performance indicators are
more appropriate for comparing the efficiency and effectiveness of different modes or a combination of transit modes at the
corridor and system levels where most major investment decisions are made.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | decision-making investment management performance public transit |
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