A bus location system collects real time information on the position of buses on their routes by determining the location of each bus through GPS. In addition to giving useful information to bus companies in managing their operations, information on the status of a bus on its route can be provided to bus passengers. The means for transmitting this information is packet transmission via cellular phones. A bus location system using 5.8GHz-DSRC road-vehicle communication, in addition to packet transmission was configured for a trial. Ways of improving the accuracy of transit information by obtaining passage information from on-board devices in addition to probe data on trajectory history were also investigated. A survey of areas with bus location systems found that 20-30% of the bus users say that they have increased their use of the buses since the bus location system was introduced. The use of the system to monitor journey times or detect unusual traffic flow is described. For the covering abstract see ITRD E134653.
Abstract