Communication and transportation networks are among the most important infrastructures critically involved in the development of different countries. The structural and tectonic position of Iran causes significant damage to its communication networks every year. Therefore, it is essential to adopt an integrated and flexible approach for assessing seismic risk in terms of available indicators. T...

Due to the availability of precise satellite navigation systems, namely GPS and in the near future Galileo, which provide reference position, time and integrity information on a global and uniform basis, rail traffic is facing a revolution in terms of flexibility of operations. Autonomous satellite navigation receivers combined with a communication subsystem, so-called telematics systems, are u...

A metro-line crossing minimization problem is to draw multiple lines on an underlying graph that models stations and rail tracks so that the number of crossings of lines becomes minimum. It has several variations by adding restrictions on how lines are drawn. Among those, there is one with a restriction that line terminals have to be drawn at a verge of a station, and it is known to be NP-hard ...

Abstract The realization of High Speed Rail (HSR) lines generates different type effects that have been observed and studied in the scientific literature last decades. paper focuses on travel demand models to estimate HSR passenger mobility. may be segmented into three main components: diverted from other modes, or rail services, HSR; induced demand, which can direct indirect; economy-based gro...

In 1863, the Metropolitan Railway of what came to be known as the London Underground successfully opened as the world’s first subway. Its high ridership spawned interest in additional links. Entrepreneurs secured funding and then proposed new lines to Parliament for approval, though only a portion were actually approved. While putative rail barons may have conducted some economic analysis, the ...

Cross-line trains, as a link between high-speed and conventional rail networks, will increase the complexity of transport organization and lead to significant challenges in dispatch coordination between the two systems. Based on the characteristics of high-speed transport organization, this paper deals with the necessity of dispatch coordination between high-speed and conventional lines from th...

The effectiveness of rapid rail transit system is analyzed using tools of complex network for the first time. We evaluated the effectiveness of the system in Beijing quantitatively from different perspectives, including descriptive statistics analysis, bridging property, centrality property, ability of connecting different part of the system and ability of disease spreading. The results showed ...

The most important operating problem for intercity rail lines, which are characterized with the train operations at rapid speed and high frequency, is to design a service-oriented schedule with the minimum cost. This paper proposes a phase-regular scheduling method which divides a day equally into several time blocks and applies a regular train-departing interval and the same train length for e...

In urban rail transit network, the passenger transfer time depends on the train connection states in transfer stations, so the optimization of the connection relations of arrival and departure time among trains is significant to improve the level of transfer service. Here, with the psychology of waiting passengers taken into consideration, the cost function of transfer waiting times has been es...

In congested cities the number of railway lines has rapidly increased. The close vicinity of rail tracks to buildings often gives rise to conflict in respect of the transmission of noise and vibration to people or sensitive equipment. Vibration attenuation can be safely achieved by well designed vibration control systems applied preferably to the source but also to the receiver. In both cases, ...