A QUEUING MODEL FOR CARGO GENERATION IN PORT
A system is considered where ships of constant capacity sail from a port with a fixed interdeparture time. It is often assumed that units of cargo arrive at the port according to some well-known probability distribution. Usually, the Poisson distribution is assumed because it describes reasonably well the arrival process. This distribution corresponds to the case of random arrivals with a constant mean, which is close to most real situations. It cannot be assumed, however, that all units which have arrived at the port will be carried by a single ship. It is possible that, for some of the units, space will not be available on the present sailing; and so the cargo will have to wait until the next sailing. The problem is that it cannot be assumed that a unit of cargo will always wait until space is available. This unit might well be carried by another shipping company which offers a more convenient sailing schedule. This discussion is concerned with a mathematical model which can describe reasonably well the arrival pattern as well as the balking process encountered in this problem.
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Corporate Authors:
Massachusetts Institute of Technology
Department of Naval Architecture and Marine Engineering
Cambridge, MA United States 02139 -
Authors:
- Novaes, A
- Frankel, E G
- Publication Date: 1964-6
Media Info
- Pagination: 49 p.
Subject/Index Terms
- TRT Terms: Cargo handling; Freight transportation; Queuing theory
- Uncontrolled Terms: Cargo flow
- Old TRIS Terms: Cargo movement; Queueing theory
- Subject Areas: Data and Information Technology; Freight Transportation; Marine Transportation;
Filing Info
- Accession Number: 00026766
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: MIT-DNA-64-8
- Contract Numbers: MA-2710
- Files: TRIS
- Created Date: Mar 2 1973 12:00AM