The problem of traffic organization on a railway line during the execution of civil works on super and sub-structures maintenance under the present conditions is becoming more and more difficult to solve, above all, due to the increased traffic intensity. In order to make decisions on indispensable measures to be taken under such circumstances, one needs information on train compositions and their delays, line capacity, facilities, etc. | Yugoslav Journal of Operations Research 16 (2006), Number 1, 97-105 ORGANIZING TRANSPORTATION ON A DOUBLE-TRACK LINE UNDER CONDITIONS OF MAJOR OVERHAUL ON ONE TRACK Branislav BOŠKOVIĆ 1, Miloš IVIĆ 1, Aleksandar MARKOVIĆ 2 1 Faculty of Transport and Traffic Engineering 2 Faculty of Organizational Sciences University of Belgrade, Belgrade, Serbia & Montenegro Received: March 2005 / Accepted: June 2005 Abstract: The problem of traffic organization on a railway line during the execution of civil works on super and sub-structures maintenance under the present conditions is becoming more and more difficult to solve, above all, due to the increased traffic intensity. In order to make decisions on indispensable measures to be taken under such circumstances, one needs information on train compositions and their delays, line capacity, facilities, etc. In order to obtain such information, it is necessary to use a computer simulation which significantly enhances the range of the problem to be solved and offers answers to the questions that cannot be solved by analytical models alone. The paper presents a simulation model of the trains’ movement on a double-track line when one track is closed to traffic due to the work executions. Such model will provide a better quality of decision-making in the process of traffic organization under given circumstances. Keywords: Double-track line, track overhaul, traffic simulation. 1. INTRODUCTION The problem of traffic organization on a railway line during the execution of maintenance work is as old as the railway lines themselves. As the time elapses, this problem is becoming more and more complex and important, primarily due to a constant growth of passenger and freight traffic intensity. Therefore, under the present conditions, it represents an extremely complex problem for the railways. This particularly applies to the underdeveloped railway lines network, where the possibility of diverging traffic to parallel lines is very limited
