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Relationship between Speed Characteristics and Traffic Safety on Freeways in Mainland China

Periodica polytechnica. Transportation engineering, 2019-10, Vol.47 (4), p.318-328 [Peer Reviewed Journal]

Copyright Periodica Polytechnica, Budapest University of Technology and Economics 2019 ;ISSN: 0303-7800 ;EISSN: 1587-3811 ;DOI: 10.3311/PPtr.12060

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  • Title:
    Relationship between Speed Characteristics and Traffic Safety on Freeways in Mainland China
  • Author: Tang, Ziyue
  • Subjects: Highway safety ; Highways ; Regression analysis ; Regression models ; Standard deviation ; Statistical analysis ; Traffic accidents ; Traffic accidents & safety ; Traffic safety ; Traffic speed
  • Is Part Of: Periodica polytechnica. Transportation engineering, 2019-10, Vol.47 (4), p.318-328
  • Description: Based on the traffic accidents statistical data of 10 typical freeways in mainland China, by using of some kinds of regression model, the influences of the average vehicle speed and the speed standard deviation on the traffic safety are studied. According to the regression results, the accidents show an increasing trend with the increase of the vehicle average speed and the speed standard deviation. On this basis, in view of the regression results, the strategy is put forward for controlling the vehicle average speed and the speed standard deviation, which has important theoretical and practical significance for improving highway safety. After a comprehensive comparison among these regression methods, it is found that the nonlinear regression method of user-defined model expression has the best fitting effect, and it can also more accurately describe the objective reality. It has high practicality and popularized value.
  • Publisher: Budapest: Periodica Polytechnica, Budapest University of Technology and Economics
  • Language: English;German;Russian
  • Identifier: ISSN: 0303-7800
    EISSN: 1587-3811
    DOI: 10.3311/PPtr.12060
  • Source: Alma/SFX Local Collection
    ProQuest Central
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