Web-Based Screening Tool for Shared-Use Rail Corridors (2014) / Chapter Skim
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Pages 9-23
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9 2.1 Background In seeking to relieve highway congestion, improve travel alternatives, and promote energy efficiency, the Passenger Rail Investment and Improvement Act of 2008 (PRIIA) seeks new partnerships between the freight and passenger railroad industries including cost-sharing arrangements for state supported corridors under 750 miles in length (see PRIIA Section 209)
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10 The research team had broad experience with both the full range of tools that have or could be used to assess capacity issues and passenger/freight commingling in a given corridor. This experience included the development of simplified tools such as Ideal Day Analysis from the Midwest Regional Rail Initiative (MWRRI)
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11 circumstances that the railroads must deal with -- and that must be considered in establishing plans for shared-use operations. Capacity and service are limited by what can be done under poor conditions (and too often schedules and models assume optimal conditions)
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12 Exhibit 2-1. Approach to corridor analysis by planning stage (using the tEms toolkit)
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13 Exhibit 2-1. (Continued)
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14 Exhibit 2-1. (Continued)
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15 Exhibit 2-2. Operations analysis with simulation (using FRA's Gtms)
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16 Exhibit 2-2. (Continued)
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17 Exhibit 2-2. (Continued)
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18 Exhibit 2-2. (Continued)
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19 to build the option that proved most effective and include a graphics interface, database, model, and output system. The development system was based on a detailed concept design, which identified inputs/outputs, models, and interface requirements for the system.
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20 Federal Requirements for Web-Based Systems The proposed Web-based tool will run on a FRA server and, as such, will need to meet all the requirements mandated for federal systems and by the agency. The research team was committed to providing the Web-based tool as a fully compliant system meeting all federal and agency requirements including • Security, • Privacy, and • Compliance with Section 508 of the Rehabilitation Act (for disabled accessibility)
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21 Preliminary sources that could substitute for railroadprovided track data included the FRA GIS 1:100000 database that is available from BTS. Current railroad timetables contain a wealth of useful information (including general facility information, point-to-point distances, elevations, and speed limits)
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22 2.3.5 Task 5: Web-Based Screening Tool Design Task 5 was intended to "develop" the Web-based screening tool, and the research team took this to mean "design" the tool, which would logically precede Task 6. (In software development parlance "development" embraces all related activities that are in the process workflows in Figure 2-2.)
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23 measured outcomes, where possible. When not possible, the research team reviewed and validated case study results with individuals closely involved with the shareduse corridor.
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