Checking railway sratus is critical to guarantee high operating safety, proper maintenance schedule, IOW maintenance and oprsrating costs. This (operation consists of the analysis of the rail profile and level as well as overall geometry and ondulation. Traditional detection systems are based on mechanical devices in contact with the track. Innovative approaches are based on laser scanning and ...

At the beginning of 1820s. Marc Seguin and his brothers started negotiations with French government for the construction of a railway line from the Saint-Etienne coal field to the Rhone valley and the city of Lyon. This railway is the first French railway using locomotives. Because there are few papers and publications on the history of this important railway, the writers have studied about the...

in this article, multiple-product pvrp with pickup and delivery that is used widely in goods distribution or other service companies, especially by railways, was introduced. a mathematical formulation was provided for this problem. each product had a set of vehicles which could carry the product and pickup and delivery could simultaneously occur. to solve the problem, two meta-heuristic methods...

This paper describes a railway system simulation to be used by train railway system operators. We have developed a learning tool for education, but, besides, different railway system models can be analyzed. Wedonot need to build the physical railway model, but may experiment with the planned system on the computer. The modeled system can be built easily and effectively and its behaviour may be ...

Safety and security and considered a critical issue in railways. Applying geographic information system (GIS) and Global Positioning System (GPS) in the railway becomes very important. Web-based GIS makes it easy to exchange information and create better public communication through the Web site. It helps to plan for a trip by checking train times, stations and different lines between stations....

Railway yard is the basic composition unit of railways, therefore, the efficiency and quality of railway yard design have a crucial effect on the construction and operation of railways. Plane design is the basis and core of railway yard design, consequently, it is significant to research plane design of railway yard. In this study, through analysis and summary of the research status as well as ...

We present design, fabrication, and characterization of a small (12 mm × 12 mm × 8 mm) movable railway vehicle for sensor carrying. The miniature railway vehicle (MRV) was mainly composed of a vibrational structure and three legs. A railway was designed and fabricated to power and guide the MRV. It also transmits the sensed data from the MRV to the signal processing unit. The MRV with legs on t...