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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:JIANG Xian-cai,SU Xiao-hong.Evolvement regularity of signal control parameters of urban road in cold region[J].Journal of Harbin Institute Of Technology(New Series),2009,16(6):873-878.DOI:10.11916/j.issn.1005-9113.2009.06.025.
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Evolvement regularity of signal control parameters of urban road in cold region
Author NameAffiliation
JIANG Xian-cai School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China 
SU Xiao-hong School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, China 
Abstract:
In snow-icy road environment, the survey data indicate that the largest decrease in traffic flow running characters occurs when snow and ice begin to accumulate on the road surface. Saturation flow is decreased by 16%, speed is decreased by 30%, and start-up lost time is increased by 27%. Based on the signal control theory of HCM and Webster, the character values of traffic flow in different urban road environments were investigated, and the evolvement regularity of signal control parameters such as cycle, split, green time, offset, yellow time and red time in snow-icy road environment was analyzed. The impact factors and the changes in the scope of signal control parameters were achieved. Simulation results and practical application show that the signal control plan of road environment without snow and ice will increase the vehicle delay, stop length and traffic congestion in snow-icy road environment. Thus, the traffic signal control system should address a suitable signal control plan based on different road environments.
Key words:  evolvement regularity of signal control parameter  traffic simulation  cold region  urban road
DOI：10.11916/j.issn.1005-9113.2009.06.025
Clc Number:U491.51
Fund:

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