Installation of RMG Cranes at Intermodal Rail Yard

This paper presents the requirements, analysis, and items to be considered during design and installation of rail-mounted gantry (RMG) cranes at an intermodal rail yard or IMY. Installing RMGs at intermodal rail yards has been considered for various locations; indeed, some are under construction and others are in operation at locations in the United States. RMG cranes increase throughput in an intermodal rail yard, allow densification of the yard, and represent a huge reduction in diesel emissions associated with the yard. The new generation of RMGs is typically electrically powered, resulting in a 100 percent reduction in diesel emissions from container handling equipment and greatly reducing noise pollution. RMGs can transfer containers directly between train and truck, thus eliminating the need for diesel-powered container handling equipment in the yard. RMGs are installed on foundations with a continuous crane rail supported by a continuous or noncontinuous foundation. Key elements in the structural and civil design of an intermodal rail yard are the layout of the yard and terminal entrance for efficiency; other considerations include the loading and stripping tracks, truck travel paths, the amount of ground storage, and the electrical supply.