Alternatives Analysis of Future Taipei Metro Routes
Date Issued
2009
Date
2009
Author(s)
Chang, Pei-Yu
Abstract
In review of public transit development project, there is a lack of appropriate alternatives analysis in Taiwan. In the feasibility studies of Taipei Metro future network, the reason of constructing MRT is only described briefly. However, average cost of Taipei Metro network is 4.4 billion per kilometer and the marginal benefit is decreasing, while the uncertainty of cost, ridership, period of construction, and the expected benefit of MRT system may not be reached. Therefore, this research aims at the alternatives analysis on future network of Taipei Metro. In the alternatives analysis, Eastern Taipei North-South Line and Minshen-Xizhi Line are identified as priority corridor, and therefore 3 alternatives are proposed, namely, DO NOTHING, MRT and BRT. Full trip cost, fuel consumption, CO2 emission are considered as the performance indicators in evaluation while future public transit network is developed with DOTS I model. It is shown that BRT network is finished 7 years earlier than the original MRT alternative. Differences between MRT and BRT have beem reflected on price, operating speed, stop spacing and headway in the model. At-grade bus lane is adopted for BRT system; therefore, one lane is deducted where BRT routes pass through. It is shown from the ridership forecast that bus suffered from obvious ridership decreasing in all alternatives and lane-deduction has signigicant impact on private mode. BRT alternative has the highest public transit usage (47.29%), lowest private mode usage (44.8%) in 2031, and also has advantage on all other indicators. The results have also identified that, BRT alternative saves 15,581 kl of fuel, reduces 59.037 tons of CO2 and gains the benefits from full trip cost of 10.6 billion per year. Because the amount of fuel consumed by private vehicles is still much higher in various alternatives, the growing trend of alternatives’ fuel-consumption and CO2-emission do not really reduced without sincere restriction on private vehicle.
Subjects
BRT
Alternatives Analysis
Full Trip Cost
Energy-saving
Green House Gas Emission
Type
thesis
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