To make full use of the dedicated bus lanes (DBL), the lanes could be multiplexed for other kinds of vehicles without disturbing the bus running according to its floating position. A novel DBL multiplexing approach that guarantees bus priority is proposed supported by Vehicle Infrastructure
Integration (VII) in this paper. A multiplexing control model is established for the DBL borrowing and returning of the general vehicles. To design such a DBL multiplexing system, it is imperative to get a high precision of bus position. Based on Kalman filter, an multisensory data fusion
solution is raised to integrate the vehicles' position data from several kind of positioning system including Global Positioning System (GPS), Dead Reckoning System (DR) and roadside Radio Frequency Identification (RFID). The Paramics simulating experiment showed the proposed DBL multiplexing
approach could not only ensure bus priority but also promote the higher traffic speed, the lower traffic density and the shorter delay time of downstream intersection than before.
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