摘要(英) |
Several railway track elevation projects have been completed in Taiwan since 1989. These projects are highly beneficial because they reduce traffic congestion caused by the barriers of rail tracks. The railway track elevation projects of Taoyuan section has been planned and designed to improve the traffic in Taoyuan County; however, the impact of the railway track elevation project in terms of emissions is still unclear. Moreover, the traffic improvement following the railway track elevation project often leads to significant changes in land development and travel behaviors. Therefore, the transportation demand in Taoyuan County is expected to increase due to the project in the long term. Therefore, this study evaluates the impact of the railway track elevation project in terms of emission reduction in the long term
This study combines transportation planning and emission prediction techniques to estimate CO2 emissions from the road system of Taoyuan County. The objective is to evaluate and analyze the impact of pollutant emissions from the railway track elevation project of Taoyuan section. The result shows that the total CO2 emission is reduced in the short term for the whole county; however, it is also noted that the emission is redistributed after the project is completed and the populated areas near the project suffer the most increase. Scenarios of the road designs are conducted in this study to further analyze the effect of the project plan. Finally, this study considers the increase of transportation demand in the long-term due to the changes in travel behaviors as well as land development, and the results show that the project might have unexpected negative impact in terms of CO2 emission for the county when the total demand increases significantly.
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