NextBus predictions -- not so accurate
Metro's bus prediction system is even less reliable now than when the transit agency deemed it so inaccurate as a pilot that officials pulled its plug, the Washington Examiner reports.
The NextBus system, which uses GPS signaling to help predict when a bus will arrive at a given stop, currently forecasts bus arrivals 78 percent of the time correctly, according to Jack Requa, who oversees Metrobus operations.
That is far below the system goal of 92 percent. It's also even less than the 80 percent prediction rate the smaller pilot version had in October 2007, when Metro officials decided to "pause" the system because it was not accurate enough.
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