Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations (2014) / Chapter Skim
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Pages 12-21
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From page 12... ...
12 C H A P T E R 2 2.1 Introduction As noted, this guidebook's research team discussed issues surrounding line capacity and operations assessments with public and private rail planners. The goal of the effort was to understand how these planners approach shared-use opportunities and to discover if there were any common themes and/or concerns in line capacity planning.
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From page 13... ...
Synthesis of Stakeholder Input 13 to deliver acceptable levels of service for each category of use. What is deemed "acceptable" varies widely even within broad user categories: • High speed passenger train operations in Japan are flagged as "off-schedule" when delays exceed 30 seconds for trains arriving and departing terminals.
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From page 14... ...
14 Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations 2.3 A Building Block for Project Execution Those who have completed major rail projects and federal oversight agencies such as the FRA have noted the importance of a robust operations and capacity assessment. The operations and capacity assessment creates the link between the infrastructure and operating plans, and informs an Environmental Impact Study (EIS)
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From page 15... ...
Synthesis of Stakeholder Input 15 Highway Administration (FHWA) which foresees a general, year-over-year growth trend of 1.5%-2.0%.
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From page 16... ...
16 Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations 2.6 The Long View The FRA, host freight carriers, and many state DOT's emphasize the need to first define the long term (minimum 20-year) service scenario for a new passenger operation and to then work backward to define logical steps of investment and service speed/frequency associated with reaching that goal.
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From page 17... ...
Synthesis of Stakeholder Input 17 • The Caltrans 5-year rail plan (revised bi-annually) coincides with the state's general budget cycle and gives rise to development of specific public-private partnership contracts, funding appropriations and project start-ups.
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From page 18... ...
18 Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations 2.8 Communications and Capacity Assessment States and agencies with longer term rail support programs as described above also noted the development, over time, of greater levels of technical collaboration and trust in assessing the service capacity of targeted corridors. Investment scenarios are vetted through the host railroad's local and regional field operations managers as well as the host carrier's service design staff.
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From page 19... ...
Synthesis of Stakeholder Input 19 2.10 Railways Are Not Highways Persons who are unfamiliar with railway operations and infrastructure are often unfamiliar with the far more restrictive conditions that govern the movement of trains. Long stopping distances, restrictive engineering specifications, and a general lack of routing and diversion options mean that impacts on a modest section of track can have far-ranging network service implications.
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From page 20... ...
20 Capacity Modeling Guidebook for Shared-Use Passenger and Freight Rail Operations funding requests. The FRA specifically requires plans to guarantee a "state of good repair" for the fixed plant as well as "Service Outcomes Agreements" with the service provider, service sponsor, and host railway corridor owner.
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From page 21... ...
Synthesis of Stakeholder Input 21 assessed for that 20-year scenario and the analysis then worked backward to determine logical breakpoints for service frequency, speed, and investment. • Appreciate the limits inherent in railway physical plant and the need, more often than not, to extend an analysis to points beyond the physical boundaries of the proposed new passenger operations.
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