Nowadays, Tehran Urban and Suburban Railway System (TUSRS) is going to be completed by eight lines and 149 stations. This complex transportation system contains 168 links between each station pairs and 20 cross-section and Y-branch stations among all eight lines. In this study, we considered TUSRS as a complex network and undertook several analyzes based on graph theory. Examining e.g. centrali...

Railway service is now the major transportation means in most of the countries around the world. With the increasing population and expanding commercial and industrial activities, a high quality of railway service is the most desirable. Dwell time control at stations and fixed coasting point in an inter-station run are the current practices to maintain the train service in most metro railway sy...

Now a day’s Railway systems plays a key role in transportation in the world. The demands for the trains are increasing drastically. The demand also increases the update of technology day to day. The train journey should be more secure. One of the problems in railway transportation is gate control system. Presently in railways the gate is controlled by manpower. Whenever the train arrives, that ...

The evaluation of quality of the railway passenger service is an important way to know the quality of the railway passenger service. This paper firstly constructs an evaluation indicator system of the quality of the railway passenger service on the foundation of the related literatures, and constructs the multiple-attribute evaluation matrix and indicator weight vector based on the linguistic v...

We consider problems of (new) station placement along (existing) railway tracks, so as to increase the number of users. We prove that, in spite of the NP-hardness for the general version, some interesting cases can be solved exactly by a suitable dynamic programming approach. For variants in which we also take into account existing connections between cities and railway tracks (streets, buses, ...

Railway infrastructure managers now have to deal with the new operators' requests for capacity. Planning the new construction or reconstruction of infrastructures must be carried out very carefully due to the huge investment needed. This paper studies a Constraint Programming (CP) model of the 'Railway Infrastructure Saturation Problem" (RISP). The model applies to assess the capacity of a junc...