In-plant railroad engine scheduling involves routing and scheduling decisions for a heterogeneous fleet of switching engines to serve a set of time-windowand capacity-constrained transportation requests. Despite an ever-increasing competition, the current planning is purely by pencil and paper. Our paper describes the mathematical and algorithmic developments for addressing in-plant railroad de...

Safety is a high priority for any rail system, and there are several safety concerns associated with operating passenger and freight trains on shared-use rail corridors. Adjacent track accident (ATA) is one of the most important concerns. ATA refers to train accident scenarios where a derailed equipment intrudes adjacent tracks, causing operation disturbance and potential subsequent train colli...

The community can use various alternative modes of transportation, and the train is still choice for most Indonesian people. PT Kereta Api Indonesia (Persero), object this research, has 2 main businesses, namely railroad non-railroad businesses. A company’s business processes do not stop until company benefits from it does, but in highly complex interconnected world, risk everywhere. Risk manag...

Transportation is a prominent infrastructure for sustaining economic momentum especially in areas of diversification production base, valuable trade expansion network and intimating resources markets into coherent cohesive economy. Nigerian centrally focused on resuscitation minerals, agriculture manufacturing development. This quest securable with development rail transportation which precurso...

of Dissertation Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy SOLVING REAL-LIFE TRANSPORTATION SCHEDULING PROBLEMS By Jian Liu August, 2003 Chair: Dr. Ravindra K. Ahuja Major Department: Industrial and Systems Engineering Transportation by railroads and airlines contains a rich set of optimization ...

Positive Train Control (PTC), often referred to as Communication Based Train Control (CBTC), has been on the National Transportation Safety Board’s (NTSB) “Most Wanted List of Transportation Safety Improvements” for several decades as a safety-enabling system. The Rail Safety Improvement Act of 2008 mandated its implementation after the September 12, 2008, Chatsworth, California, collision betw...

Wayfinding is part of everyday life. This study concentrates on the development of a conceptual model of human navigation in the U.S. Interstate Highway Network. It proposes three different levels of conceptual understanding that constitute the cognitive map: the Planning Level, the Instructional Level, and the Driver Level. This paper formally defines these three levels and examines the concep...

During the nineteenth century manufacturing increased its share of labor force in United States, and became more urban, as did population. Our survey literature analyses census data suggests that a key reason was development nationwide transportation system, especially railroad. Coupled with changes technology organizational form, “transportation revolution” demand for urban locations. Labor su...