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- W636708182 abstract "With the success of several pilot programs, communications-based train control systems are being deployed in freight and passenger settings. The question is no longer if they will become common in the industry, but when, and in which form. The North American Joint Positive Train Control project recently tested a 15-mi. section of track that can support 110-mph operation of Amtrak trains in Illinois. The train in the test used communications-based controllers, which worked well. The federally designated high-speed corridors are expected to be big users of these systems to enforce speed restrictions, activate grade crossings and, if needed, stop a train in an emergency. The goal is to have all elements on the test section operational by summer 2003, and trains in revenue service will gradually increase their speeds to 110 mph. In a first for North America, Amtrak has been using positive train control along a 97-mile right of way in the Midwest in revenue service with train speeds that go up to 90 mph. One safety element is an automatic sensing system that connects crossing gates with trains, so that if the gates have remained down for more than five minutes, the point at which motorists start to drive around them, the train is signaled to slow to 15 mph. The new control system that is being installed in Bay Area Rapid Transit (BART) trains allows for smoother acceleration, in 1 mph increments rather than 4. The new system will also allow it to increase capacity by as much as 30% by running trains with shorter headways. Meanwhile, interoperability and open architecture are being called for, especially by larger operators such as New York City Transit, which wrote open architecture into its specs. The next big hurdle, once the individual agencies have incorporated positive train control, is creating a network wide system." @default.
- W636708182 created "2016-06-24" @default.
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- W636708182 date "2002-12-01" @default.
- W636708182 modified "2023-09-26" @default.
- W636708182 title "PROGRESS UNDER CONTROL : AFTER COMPLETING SEVERAL SUCCESSFUL PILOT PROGRAMS, RAILROADS SEEK TO EXPAND COMMUNICATIONS-BASED TRAIN CONTROL SYSTEM CAPABILITIES" @default.
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