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Simulation of a transit signal priority system in Helsinki, Finland indicated that fuel consumption decreased by 3.6 percent, Nitrogen oxides were reduced by 4.9 percent, Carbon monoxide decreased by 1.8 percent, hydrocarbons declined by 1.2 percent,

FINDINGSFuel Consumption and EmissionsSimulations were used to evaluate fuel consumption and emissions for buses before and after system deployment. The calculations considered the average total…
Content type
Date Posted
02/25/2002

In Helsinki, Finland a transit signal priority system improved on-time arrival by 22 to 58 percent and real-time passenger information displays were regarded as useful by 66 to 95 percent of passengers.

FINDINGS Ridership The field study showed the system had positive effects on the level-of-service for each mode of transportation. Overall, the improvements in bus line performance were greater…
Content type
Date Posted
02/25/2002

A transit signal priority system in Helsinki, Finland reduced delay by 44 to 48 percent, decreased travel time by 1 to 11 percent, and reduced travel time by 35,800 to 67,500 passenger-hours per year.

FINDINGS Delays, Travel Time, and Reliability Delays at signals were reduced by 44 percent (1 min 13 sec) on the tramline, and 48 percent (3 min 18 sec) on the bus line. However, stop time for both…
Content type
Date Posted
02/25/2002

Based on information from 18 agencies worldwide, the costs of real-time bus arrival information systems vary depending on AVL technology, fleet size, and provisioning of real-time information.

This TCRP synthesis report presents information on the state of the practice in real-time bus arrival information systems based on literature research and survey of transit agencies in the United…
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Made Public Date
06/01/2004