Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations (2014) / Chapter Skim
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1 C H A P T E R 1 1.1 Introduction, Purpose and Overview of This Guidebook 1.1.1 Introduction A broadened understanding of rail capacity is an essential cornerstone for building the partnerships required for successful implementation of passenger rail operations on shared-use corridors. The product of such understanding is an ability for corridor partners to deal with service proposals and challenges in a dispassionate, objective manner.
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2 Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations trust and communication and will support the overall objective of building solid and respectful partnerships for the use of such alignments. This is a guidebook on how state DOTs and other passenger rail service sponsors can successfully partner with rail corridor owners in addressing the capacity issue as a core element of successful shared corridor operations.
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Introduction 3 include the Illinois Zephyr in Illinois, and the Heartland Flyer in Texas and Oklahoma, along with portions of Cascades in the Pacific Northwest, the Pacific Surfliner in Southern California, and the San Joaquins in northern and central California. Commuter rail services include: the Sounder in Washington State, Metrolink in the Los Angeles area, and Metra in Chicago.
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4 Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations Union Pacific Railroad (UP) hosts intercity services operated by Amtrak and various states, as well as commuter rail services.
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Introduction 5 Connecticut Department of Transportation (ConnDOT) owns a portion of Amtrak's NEC from New York / Connecticut state line to a point just east of New Haven Union Station.
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6 Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations as well funding and oversight of railroad research and development. It also provides training and technical assistance.
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Introduction 7 Entry and exit switches can be controlled manually by the train crew, or with their accompanying signals, controlled by an interlocking. An interlocking is a mechanism that is either controlled locally from a signal tower (almost extinct)
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8 Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations segments likely to be of interest in capacity studies have power switches that can be operated remotely by the dispatcher. The dispatcher's workstation (usually called a dispatcher's desk)
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Introduction 9 compared to, for example, a commuter rail service; and there is substantial randomness in when trains arrive on a line segment.
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10 Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations systems complexity, constant evolution of underlying communications and computing technologies, and the lack of common industry standards had frustrated implementation of such concepts. A new sense of urgency and political focus occurred with the fatal collision between a Metrolink commuter train and a Union Pacific Railroad freight train in Chatsworth (Southern California)
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Introduction 11 take to the highway as there are drivers, and the highway has to accommodate them all. Traffic patterns on highways will be more or less the same throughout the year.
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