Site Locating For Inspection Posts of Freight Cars in Railway Network Using Analytical Hierarchy Process (AHP) and Geographic Information System (GIS) (CaseStudy: Iranian Railway Network)
Abstract: Freight car
inspection and maintenance system have an undeniable role in total costs
imposed on system for repair and rehabilitation process of different components
of it. This issue shows its importance when railway transportation comes to
competition with other modes of transportation. In this competition, lower
total cost means more demands and more benefits for optimum systems. Using
preventive maintenance methods for rolling stock are among appropriate
solutions in order to lower the costs. These methods require to have an exact
monitoring system to achieve a reliable scope of system. Inspection posts play
an essential role as “wise eyes” on inspection system.
Using Analytical Hierarchy Process (AHP) in this article has developed
decision tree including goals, criteria, sub criteria and alternatives. The
main criteria are 1-traffic, 2-geographical position, 3-loction of station on
railway network, and 4-repair and maneuver equipment of station. These criteria
and sub criteria have been weighted and quantified using expert’s opinion. The
use of Geographical information system, 403 stations had been evaluated with 26
criteria and sub criteria and prioritized. By considering coverage of network
in next step, 43 stations are recommended as required station numbers in
railway network to provide 70.53% Coverage of railway network traffic.
Keywords: Analytical Hierarchy
Process (AHP), Geographical Information System (GIS), Freight-car, Inspection
posts
Author: Saeed Monajjem,
Mohammad Mahanpoor, Mohammad Sadathoseini
Journal Code: jptsipilgg150032