A recent conversation about the potential of high speed rail
led a Slate writer to argue that converting a few key corridors would be more efficient than a nationwide system. The northeast corridor (and Philadelphia) made his list.
Corridors that couldn’t attract sufficient numbers of riders would likely detract from the potential economic and environmental benefits gained from the more sensible routes. “If newly built high-speed rail services do not attract projected ridership over time, they will not only fail to deliver their promised benefits but they may waste energy, resources, and require excessive operating subsidies,” the America 2050 report concluded.
Experts who study light rail often mention a “sweet spot” of between 100 and 600 miles for high-speed rail corridor trips. Shorter than 100 miles, and a rider is more likely to want to take a conventional train, a car, or a bus. Longer than 600 miles and a rider is better off flying.
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