Evaluation of several transit signal priority systems found decreased bus travel time variability by 35 percent, lowered bus travel times by 6 to 27 percent, reduced AM peak intersection delay by 13 percent, and decreased signal-related bus stops by 50 percent.(January 2002)
A before-and-after study found that transit patrons experienced a smoother and more comfortable ride when a transit signal priority system was implemented in Seattle, Washington. (January 2002)
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