基于浮动车的路段行程时间卡尔曼滤波预测算法.pdf

100044 5min Link Travel Time Prediction Method Based on Kalman Filtering and Probe Vehicle Gong Shan Yin Xiangyong Zhu Aihua (The school of traffic and transportation, Beijing Jiaotong University, Beijing 100044, China ) Abstract In this paper, based on the data of probe vehicle on the road, we apply Kalman filtering to establish a new model, which can predict the link travel time using 5 minutes as a time interval. Finally we give a demonstration of link travel time prediction to verify models’ validity based on the floating car date gathered from Hangzhou. Keywords: link travel time, probe vehicle, kalman filtering [1~4] [5~6] i 1 2 v d /(t −t ) 1 i i i i v i i 1 2 i t t i i i d i [7]2 2 z α 1− n 2 •cv2 2 2 r *2005BA414B16 828 z r α 1− 2 [8] 5%~10% cv Shawn M. Turner cv 39.9 =−0.27µµ45~105 k k 1min k min (k +1) min 1min n