This paper presents the procedures and results of a simulation project of a railroad coal transportation system. The model keeps locomotives and wagons at the system, instead similar works that put the trains at start of the line, and removes it on the other side, just to analyze the line utilization and traffic. The case was based on the Estrada de Ferro Vitória-Minas (EFVM), managed by Compan...

Transportation is on wheels mostly .The wheel is everywhere on all our cars, trains, planes, machines, wagons, and most factory and farm equipment. What could we move without wheels? But as important as the wheel is as an invention, we don't know who exactly made the first wheel. But this invention led to the movement of goods from one place to another to transform into some usable product or a...

On 15 April 2012 at around 13:00 local time, following a heavy rainfall in Tehran, a break in the channel wall of Kan River caused a flash flood in the Tehran metro tunnels. Consequently, line 4 of the metro went out of operation for about two weeks 1 . The flood was running for 30 hours in the metro system so that three stations were flooded causing damage to four trains and 28 wagons 2. It is...

This teaching case discusses the challenges faced by the Indian Railways in contemplating the implementation of a new technology for tracking individual freight railcars (wagons). After exploring multiple ‘technological options’, the Indian Railways decided to undertake a pilot project based on time-tested Automatic Equipment Identification system using Radio Frequency Identification (RFID) tec...