000			04011cas|a2200421 a 4500
005			20260817171929.0
008			240699s1991 th uu|m rtt 0| a1eng d
035			_a.b10124020
099		9	_aAIT Diss. no. IE-91-01
100	1		_aZhu, Weinian
245	1	0	_aBus scheduling management in Bangkok
260			_aBangkok : _bAsian Institute of Technology, _c1991
300			_a195 p.
490	1		_aDissertation ; _vno. IE-91-01
500			_aA doctoral dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Technical Science, School of Engineering and Technology
502			_aThesis (Ph.D.) - Asian Institute of Technology, 1991
520			_aThe public bus transit system of Bangkok is one of the largest in the world. Efficient managerial policies are required to provide good service at minimal cost in a very hectic traffic environment. The design of an adapted, computerized bus scheduling methodology is the main subject of this dissertation. Trip frequency scheduling for bus routes is studied taking into account the present practices, lack of modern equipment, lack of parking spaces, and the fluctuating traffic conditions throughout the day. An integer programming model is developed and two heuristic methods, one of which is based on linear programming and the other being a straightforward derivation from the present bus operation, are presented. Complementary bus and crew scheduling methods are also developed taking into account the special feature that buses and crews are not assigned to a specific trip before the start of the daily operation. Based on the bus and crew schedules, the relationships between the total employed and daily crew sizes are established. Crew rostering methods are developed: a procedure to generate a day off pattern is proposed; an integer programming model to represent the crew rostering problem with day off and shift constraints is developed; a heuristic method using the Bottleneck Assignment Problem and a procedure to generate an initial solution are proposed. The resulting methodology is tested on two selected bus routes in Bangkok and extensive comparisons are made. All practical aspects, such as parking space and depot location constraints, are considered. It appears from the study that at similar exploitation costs significantly better service can be offered to the public. The practical implementation of the new approach and data collection is also discussed. The approach has been implemented for two bus routes in the city of Bangkok. Apart from the very practical approaches mentioned, a more theoretical probabilistic analysis has been made of the distribution of buses along a bus route in a city with many traffic congestions. A specific queuing model was developed allowing to predict where bus concentration will occur.
650		0	_aScheduling (Management)
650		0	_aBus lines _zThailand _zBangkok
700	1		_aOudheusden, Dirk L. van, _eChairperson
700	0		_aYordphol Tanaboriboon, _eCo-Chairperson
700	1		_aNagarur, Nagendra N., _eExamination Committee
700	1		_aTang, John C.S., _eExamination Committee
700	1		_aDrew, Donald R., _eExamination Committee
710	2		_aGovernment of Australia, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tDissertation ; _vno. IE-91-01
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B17455
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