| Author | Van der Perre, Peter |
| Call Number | AIT Diss. no.IE-93-02 |
| Subject(s) | Bus lines--Thailand--Bangkok
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| Note | A doctoral dissertation submitted in partial fulfi l lment of the requirements for the degree of Doctor of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Series Statement | Dissertation ; no. IE-93-02 |
| Abstract | The public bus transit network in Bangkok is one of the largest in the world . The organization of a network of facilities and good services at minimal costs is hampered by the hectic traffic environment and the rapid changes in the city . A bottom- up approach is followed in studying network aspects of a large transit organization . Initially, only flexible characteristics of the bus network, such as bus allocation to depots, are allowed to change, while the possible modification of more robust features, such as route design, is considered at a later stage. As such, the allocation of buses from transit routes to depots, and its relation with other relevant aspects such as the provision of maintenance facilities, the location of depots, and the incorporation of different bus types, is the main subject of this dissertation. The allocation problem is first solved as a single commodity flow problem. Next, two different attributes of the buses are incorporated in the problem formulation : the different brands, t hat affect maintenance costs at depot level, and the different types, that influence revenue at route level. The optimization of the maintenance requirements is incorporated in the problem in a hierarchical and in an integrated way . Different mixed integer programming models are developed. To cater for the different types of buses at route level, heuristics are presented that distribute the buses according to bus type given the outcome of the hierarchical or integrated approach. The role of the depot locations is examined. Higher up in the hierarchical approach, origin-destination analysis is studied. A direct estimation procedure is developed that updates an existing origin-destination matrix with the ridership levels that were recorded on the transit routes. A straightforward routing algorithm is presented to assess the scope of improvements that are possible . To process the significant amounts of data that are involved in the optimization of network aspects, and to embed the different developed methodologies in an application-oriented software, a transit-oriented Geographical Information System was designed and implemented first . Starting from a minimal specification for network-oriented GIS, three levels in the software allow for the development of appli cation- oriented extensions.The resulting methodologies are tested on the network configuration of the Bangkok Mass Transit Authority, and an extensive evaluation is made. The application of the models reveals that a significant reduction in idle running (42 to 56 %) and in the required number of maintenance facilities (33 %) can be achieved, while the demand for different types of buses at route level can still be served in an acceptable way. |
| Year | 1993 |
| Corresponding Series Added Entry | Asian Institute of Technology. Dissertation ; no. IE-93-02 |
| Type | Dissertation |
| School | School of Engineering and Technology (SET) |
| Department | Department of Industrial Systems Engineering (DISE) |
| Academic Program/FoS | Industrial Engineering (IE) |
| Chairperson(s) | Oudheusden, Dirk L. van; |
| Examination Committee(s) | Tang, John C. S.;Shimazaki, Toshikazu;Kammeier, H. Detleff;Koshi, Masaki; |
| Degree | Thesis (Ph.D.) - Asian Institute of Technology, 1993 |