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Study on the Fusion of Traffic Flow Collection and Urban Traffic Flow’s Guidence Based on GPS Equipped Floating Vehicle

Author: MaJing
Tutor: ZhaoXiangMo
School: Chang'an University
Course: Applied Computer Technology
Keywords: Traffic Flow Guidance Data fusion technology Probe Vehicle Average link speed
CLC: TP274.2
Type: Master's thesis
Year: 2008
Downloads: 313
Quote: 4
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Abstract


With further increase of China 's large and medium-sized cities in the gradual maturity of the road network and road traffic demand , the city often increasingly serious traffic congestion onset . In fact, the road network is not on all the time and space are running at full capacity , the ability to obtain timely Road dynamic traffic information online , full use of the resources of the transport system , you can not increase the set of road by improving the efficiency and safety of the use of the road network to meet the growing demand for transport . Road network traffic flow information acquisition technology has become one of the important technologies in intelligent transportation systems . Papers in a comprehensive analysis of the common traffic flow collection technology and GPS floating car collection on the basis of technical advantages and disadvantages , the proposed the sense coil acquisition of technology and integration algorithm based on GPS floating car collection technology . Collected through the sense coil the instantaneous speed of the vehicle and the floating car space acquisition speed , converted into a space speed calibration than choose from the appropriate parameter calibration floating car space speed , in order to get higher accuracy average link speed . The algorithm to make up for the shortcomings of the sense coil acquisition device installation location is limited as well as the floating car models is limited data fusion almost close to the actual data . Optimal path in accordance with the optimized road network weights and using the the Dijkstra of Claes algorithm right path network traffic flow induced by ordinary vehicles and public transport vehicles induced . On the basis of the above theoretical algorithm analysis and research , according to the traffic demand characteristics of the road network in Guangzhou City , established to optimize the the Guangzhou traffic network design goals , and select the appropriate guidance algorithm , to establish a road network traffic congestion optimization Guangzhou specific solutions . Finally, through to utilize Matlab6.0 simulation of the algorithm and the project of the road network in Guangzhou specific application , show that the proposed traffic flow collection technology integration algorithm is able to meet the requirements of the subject , to prove the algorithm feasible , and in the actual project application , to obtain better results .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Data collection and processing systems
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