Metro systems are one of the most important transportation systems in people’s lives. Due to the huge amount of energy it consumes every day, highly-efficient operation of a metro system will lead to significant energy savings. In this paper, a new integrated Energy-efficient Operation Methodology (EOM) for metro systems is proposed and validated. Compared with other energy saving methods, EOM ...

In this paper we investigate the effect of the Delhi Metro, an intra-city mass rail transit system, on air pollution within Delhi. To identify effects on pollution, we exploit the discontinuous jumps in metro ridership, each time the network is extended. Our identifying assumption is that in the absence of the extension there would be a smooth transition in pollution levels. We find strong evid...

infrastructure development being the major construction activity undertaken with the support of the government to eradicate poor transport infrastructure, to cater to ever-increasing population, to reduce the usage of own vehicle and environmental impact thereof, the concept of mass rapid transit system came into existence. among the various mass rapid transit system modes, metro rail construct...

This article presents a mathematical model of the risk failures, depending on operating parameters, locomotive diesel engines. The purpose this study is to determine failures engines in maintenance. theory probability and logic reliability are used theoretical study. innovations main works first approaches calculating by hourly fuel consumption, which, under operational conditions, allows for e...

Timetable design is crucial to the reliability of a metro service. In terms of the delays caused by passengers’ boarding and alighting behaviors during rush hours, the planned timetable for a metro line with high-frequency service tends to be difficult to implement. General oversaturation events, rather than accidents or track damage, still have a significant impact on metro systems, so that tr...

In this paper, we explore whether the geography of bank services has been converging toward the market since banking geographic deregulation. We use Illinois as a study area and examine changes in various market segments such as metro and non-metro markets, and regional markets. We adopt the Spatial Concentration Index (SCI) and the related supply and demand SCI deviations to measure changing s...

Metro Ethernet has been widely adopted lately. One of its goals is to provide clients with VPN services, and in this context, loadbalancing and protection have become important issues. This paper presents an original formulation of these problems in Metro Ethernet, and introduces an algorithm for load balancing which provides good numerical results.

As current sustained traffic growth is expected to strain capacity of today’s metro network, novel content distribution architectures where contents are placed closer to the users are being investigated. In that regard, telecom operators can deploy datacenters (DCs) in metro areas, thus reducing the impact of the traffic going from users to DCs. However, effective solutions to distribute conten...