document: Selecting rail grade crossing investments with a decision support system The Federal Railroad Administration -LRB- FRA -RRB- has developed a series of rail and rail-related analysis tools that assist FRA officials , Metropolitan Planning Organizations -LRB- MPOs -RRB- , state Department of Transportation -LRB- DOT -RRB- , and other constituents in evaluating the cost and benefits of potential infrastructure projects . To meet agency objectives , the FRA wants to add a high-speed rail grade crossing analysis tool to its package of rail and rail-related intermodal software products . This paper presents a conceptual decision support system -LRB- DSS -RRB- that can assist officials in achieving this goal . The paper first introduces the FRA 's objectives and the role of cost benefit analysis in achieving these objectives . Next , there is a discussion of the models needed to assess the feasibility of proposed high-speed rail grade crossing investments and the presentation of a decision support system -LRB- DSS -RRB- that can deliver these models transparently to users . Then , the paper illustrates a system session and examines the potential benefits from system use
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