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005			20260817162932.0
008			241197 th eng
035			_a.b10088568
099		9	_aAIT Thesis no. 205
100	0		_aLertvit Tangkosakul
245	1	0	_aApplication of queuing models to ship turnaround at the port of Bangkok
260			_aBangkok : _bAsian Institute of Technology, _c1968
300			_a68 p.
490	1		_aThesis ; _vno. 205
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in the Asian Institute of Technology, Bangkok, Thailand.
502			_aThesis (M.Eng.) - Asian Institute of Technology, 1968
520			_aThe purpose of this thesis is to analyze data pertaining to ship turn-around time at the Port of Bangkok from the standpoint of queuing theory and to utilize the findings to draw some inferences regarding application of the theory to certain aspects of the operation of the port at the time of the study. Specifically, ship arrivals and servicing were studied for the period from 1st July 1966 through 30th June 1967. Data were obtained from the records of the Port Authority of Thailand using mark sense cards; the analyses were mostly conducted by sorting the data deck and running this through the IBM-1130 computer which was programmed for the required statistical computations. Two basic elements are necessary for the application of the queuing model to a waiting-line problem: an arrival function and a servicing function. Search for suitable formulations of the distribution of the ship-arrival intervals and the distribution of the duration of berth occupancy were made; selection of suitable distribution functions was made on the basis of the goodness of fit with the observed values. From the arrival and servicing information, and the amounts of delay and thelengths of queues observed at the Port of Bangkok, an evaluation of several queuing models was made. It was concluded that a multiple-channel, negative-exponential arrival, and negative exponential servicing queuing model best suited the conditions observed for berthed ships. None of the models studied gave satisfactory results when applied to the entire system of mooring and berthing spaces.
650		0	_aHarbors _xBangkok
650		0	_aQueuing theory
700	1		_aJones, John Hugh, _eChairperson
700	1		_a Chai Muktabhant, _eExamination Committee
700	1		_aSubin Pinkayan, _eExamination Committee
810	2		_aAsian Institute of Technology. _tThesis ; _vno. 205
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B24545
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