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Application of Queueing Theory to Seaport Congestion Problem in Nigeria

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Application of Queueing Theory to Seaport Congestion Problem in Nigeria
APPLICATION OF QUEUEING THEORY TO SEAPORT CONGESTION PROBLEM IN NIGERIA

By

1Oyatoye E.O. Ph.D Department of Business Administration, University of Lagos. Nigeria
Email: eoyatoye@unilag.edu.ng

2Adebiyi, Sulaimon Olanrewaju
Department of Economics and Financial studies
Fountain University Osogbo, Osun state. Nigeria. Email: lanre18april@yahoo.com

3Okoye John Chinweze
Torcelik International Company United.
Apapa, Lagos. Nigeria

ABSTRACT
This paper stresses the importance of queueing theory to the problem of port congestion in order to enhance sustainable development of Nigeria ports. Nigeria Ports are characterized with incessant congestion problem in the recent past. This has resulted in diversion of ships scheduled for Nigeria Ports to other neighbouring country ports while has caused the country loose a lot of revenue. The effectiveness of Port is contingent upon loading and unloading of ships. The traffic movement through a port is a complex phenomenon because of the random nature of the arrival and service time of the ships. This requires a systematic approach in port planning and management. Queuing model was applied to the arrival and services pattern which causes the problems of congestion and proffer solutions to the problem areas. It is also used to predict the average arrival rate of ships to Tin can Island Port and the average service rate per ship in a month. The study to found out the number of berth in Nigeria port is adequate for the traffic intensity of vessels but other factors leading to port congestion were identified through the content analysis of the interview conducted with stakeholders at port. While policy recommendation were made for making the Nigerian Ports cost effective, more attractive and enhance quick turnaround of vessels at the Ports.

Keyword: Queue theory, port congestion, berth, arrival time, service time

Introduction
The Nigerian Ports Authority (NPA) was established in 1955 and was



References: Abdulsalam M (July 19, 2009) Nigerian Ports Authority, The Nation Newspaper Adedayo O.A, Ojo O and J.K Obamiro (2006) Operations Research in Decision Analysis and Bojan Beškovnik (2008) Measuring and Increasing: The Productivity Model on Maritime Container Terminals, Intereuropa, Globalni logistični servis, d.d., Vojkovo nabrežje 32, SI-6000 Koper Slovenija, Pomorstvo, god Chen-Hsiu Laih and Kuang-Che Hung (2004): The Optimal Step Toll Scheme for Heavily Congested Ports, Journal of Marine Science and Technology, Vol Erlang AK (1909): The theory of probabilities and telephone conversations. Nyt Tidsskrift Mat B 1909; 20:33–9 Fararoui F (1989). Queuing theory and berthing optimization, PhD thesis Priority Berthing in Congested Ports Maduka (2004), Port, Shipping, Safety and Environmental Management. Concept Publication Ltd., Lagos. Kalavaty S (2007) Operations research; second edition, Vikas Publishing house PVT Ltd, New Dephi Kareem W.A (2010) An Assessment of Nigeria’s Port Reforms, The Fronteira Post, Economic Policy & Financial Markets, Value Fronteira Limited; Occasional Paper Series, May 27, 2010 Onwumere, (2008) Handout on Maritime Transport, Operations and Management, Certified Institute of Shipping, Lagos. Radmilovick Z.R (1992). Ship-berth link as bulk system in ports. Journal of Waterway, Port Coastal Engineering. Sharma J.K. (2008) Operations Research; Theory and Applications, third edition, Macmillan Indian Ltd, Indian Saaty T.L. (1961), Elements of queueing theory with applications, McGraw-Hill Book Co, New York Sanijb. A and Biswa S.K (2001); “Analysis of container Handing system of Chittagong Port” Mgt Science Tu-Cheng Kuo, Wen-Chih Huang, Sheng-Chieh Wu, and Pei-Lun Cheng (2006) A Case Study of Inter-Arrival Time Distributions of Container Ships, Journal of Marine Science and Technology, Vol Warwar, P. (1980), Port Capacity Methodology, Journal of Transport Economics and Policy (9): 242-250.

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