Development of transportation model for a regional city with GIS integration | |
| Author | Kritsda Tangkavachiranon |
| Call Number | AIT Diss. no.TE-04-01 |
| Subject(s) | Transportation--Planning Geographic information systems |
| Note | A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Dissertation ; no. TE-04-01 |
| Abstract | This study presents an alternative approach to develop a regional traffic forecasting model. The developed approach differs from the traditional model in that it is developed within the national traffic model to ensure that all traffic components, internal and external trips, can be predicted through socio-economic data. A geographic information systems (GIS) is also used for all socioeconomic and transportation data preparation as well as results presentation. The models are developed hierarchically according to the relative administrative boundaries, namely, from the national (Provincial level) to the regional (Amphoe or District level) and then to the local area (Tambon or Municipality level). The national model (NAM) is first developed for the selected province to create a regional model (REM). This REM serves as an intermediate level between the NAM and the local or municipal model (LOM). Then, the REM is further refined within the selected local area to develop the LOM. More detailed road networks and intra-zonal trips are added at each level during the development process. In short, the process consists of different layers, each with its own database that can be individually managed and inter-linked together. Under the adopted traffic analysis zone (TAZ) system, the approach allows the model development and data storage of different study areas to be performed concurrently, which can speed up travel data accumulation within the same frame of reference. This is a good initial step for data accumulation, particularly for those developing countries with relatively poor databases such as Thailand. It can facilitate further research and development in the field of transportation in the country and help reduce the extensive required data collection. A prototype model using the proposed approach is then developed. The model consists of three major modules: the GIS data module, the GIS tool module and the travel demand module. The GIS data and GIS tool modules are used for preparation, manipulation and translation of GIS data. These GIS tools are written in MapBasic programming language. The travel demand module which contains various template files written in TRIPS Command Language, is used for travel demand analysis. To demonstrate its real world application, this prototype model is applied to a case study in the North-Eastern Region of Thailand. After the validation process, this demonstrated model is then compared with the traditional demand model. Results from the comparison revealed several drawbacks of the growth rate approach used in traditional model. This research, finally, highlights the major contributions as compared to previous related research. The proposed approach, apart from the advantage for external trips estimation, encourages all information assembled in a common geo-referencing format which can be shared among different organizations. Thus, it can provide a strong foundation for future regional planning work especially in developing countries. |
| Year | 2005 |
| Corresponding Series Added Entry | Asian Institute of Technology. Dissertation ; no. TE-04-01 |
| Type | Dissertation |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Transportation Engineering (TE) |
| Chairperson(s) | Yordphol Tanaboriboon; |
| Examination Committee(s) | Pannapa Herabat;Hanaoka, Shinya;Tripathi, Nitin Kumar;William, Lam Hiang Keung; |
| Scholarship Donor(s) | The Royal Thai Government; |
| Degree | Thesis (Ph.D.) - Asian Institute of Technology, 2005 |