To collect real-time link traffic information(Link Travel Time) for based on beacon and GPS technologies prove cars always have to be operate on the entire network. In this study, in case of taxi probe cars based with Beacon and GPS, method on determi...
To collect real-time link traffic information(Link Travel Time) for based on beacon and GPS technologies prove cars always have to be operate on the entire network. In this study, in case of taxi probe cars based with Beacon and GPS, method on determining required number of probe cars is studied to get traffic information of reality. Using taxis for probe cars, the the factors that influence the number of probe cars are operation time and distribution of prove cars over the network, operate distance and travel speed, the portion of revenue operation distance of taxis. The result of this study was ; As the collecting period for one traffic information prove cars travel more link, thus the number of prove cars decreases. The number of prove cars decreases when the allowable numer of links that no link travel times are collected increases.