| Title | The Demand Model of Intercity Transportation Systems under National Sustainable Development in Taiwan (3/4) |
| Dept | Transportation Planning and Land Transport Division |
| Year | 2007 |
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| Summary | This is a 4-year project starting from Year 2004. The primary objective of the project is to establish an intercity travel demand model as a planning tool for evaluating transportation policies and relevant projects. Parameters relative to sustainable development will be incorporated as key evaluation criteria in the planning process. The model may also be used for testing sensitivity of performance measures caused by various transportation policies. In Years 2004 and 2005, we successfully established the relationship between the intercity transportation demand model and the parameters in sustainable development, identified factors that affecting the model performance, analyzed data collected from relevant transportation surveys, and established evaluation criteria and mechanism for sustainability. Based on the findings in previous study, the primary tasks in this (the third) year are (1) to establish and validate an intercity passenger demand model for sustainability by integrating the results of previous surveys and parameters on sustainable development and (2) to analyze current demand characteristics and operating conditions of freight transportation demand, and to assess future needs for freight transportation modeling. The main achievements of the third year of project on passenger transportation include: (1) reviewing and assessing the forecasting capability of the previously calibrated model in socio-economic variables, trip characteristic, trip distribution, mode choice, as well as freight transportation demand (2) based on finding from past literature, formulating a modeling framework for an integrated intercity transportation demand model that is more sensitive to the change of level of services provided by various modes of transportation (3) building up and calibrating highway and public transportation networks by employing the software “CUBE” as the planning platform for transportation demand model analysis (4) analyzing and calibrating sub-modules of intercity passenger transportation model, including trip generation, trip distribution, mode choice and traffic assignment (5) analyzing transportation supply and demand of the intercity passenger transportation system. The major achievements on freight transportation include: (1) collecting highway, railway, port and air freight transportation data (2) establishing the commodity classification system for future analysis (3) calibrating O-D matrices of freight transportation, and (4) analyzing the characteristic of freight transportation and proposing guidelines for building the freight transportation demand model. In the fourth year, the project team will establish and calibrate a sustainable intercity freight transportation demand model. The model will be used for assessing the effectiveness and priorities of transportation projects by examining the supply and demand conditions, and performing sensitivity analyses for transportation policies. The findings of the project may serve as an important reference for policy-making in national transportation development. |
| Post date | 2007/11/01 |
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