scholarly journals Research on Speed Limit Value Model and Evaluation Method of Urban Trunk Road

Author(s):  
Xin-wei LI ◽  
Xiao-fei WANG
2021 ◽  
Vol 23 (4) ◽  
pp. 678-684
Author(s):  
Jakub Lewandowski ◽  
Stanisław Młynarski ◽  
Robert Pilch ◽  
Maksymilian Smolnik ◽  
Jan Szybka ◽  
...  

The aim of the work was to develop a method of verification of the preventive renewal strategies, which enables a simulation evaluation of the effects of the application of a specific schedule of inspections of parts that are important in the operation of complex renewable technical objects. Using it requires having an already established schedule of inspections, and the result of applying the method is determined by indicators that assess the usefulness of the strategy, even before implementation. The developed computational tool was used to evaluate the renewal strategy of the current collector contact plates. Based on the real operational data, several renewal intervals were considered, determining the frequency of events involving the plate covering a specific mileage, from exceeding the wear control limit value to the next inspection (replacement). The proposed verification method is an important tool for testing and planning technical inspections for systems and elements with planned wear, and parts are periodically replaced.


CICTP 2012 ◽  
2012 ◽  
Author(s):  
Xue Peng ◽  
Wei-hua Zhang ◽  
Zi-ying Miao ◽  
Jun-jie Chen

2012 ◽  
Vol 209-211 ◽  
pp. 663-666
Author(s):  
Yu Feng Guo ◽  
Guo Zhu Cheng

In order to increase driving safety level on freeway, the paper analyzed the affecting mechanism of rainy day, snowy day and foggy day on road traffic safety. Considering that the sum of running distance and braking distance is less than visible distance, theoretical calculation formula of maximum speed limit value on freeway in adverse weather was presented based on the safe distance. Suggestions values of corresponding speed limit were given according to different visible distance, road fiction coefficient and grade.


2021 ◽  
Author(s):  
Kai Guo ◽  
Nathanael Melkisedek Coulibaly ◽  
Jing Cai ◽  
Xiao-Fei Wang
Keyword(s):  

2021 ◽  
Author(s):  
Jianyou Zhao ◽  
Beibei Dong ◽  
Qingyun Liu ◽  
Kunpeng Lv ◽  
Zhendong Zhang

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