Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A Novel Safety Assessment Framework for Pavement Friction Evolution Due to Traffic on Horizontal Curves
The friction coefficient is one of the dominant parameters affecting vehicle driving stability on horizontal curves. However, there is no comprehensive framework to assess the traffic safety on the horizontal curve with the evolution of the friction coefficient caused by the traffic flow. In light of this, this paper developed an integrated risk-assessment framework to evaluate the safety on the horizontal curve with the friction coefficient evolving under different traffic characteristics. The speed distribution on the horizontal curve of the freeway is obtained through field experiments that serve as the basic parameters of the model. A new multi-vehicle risk index (MRI) is introduced to assess the traffic safety risk for the horizontal curve by coupling the reliability theory and negative binomial. Three traffic characteristics are considered in the analysis: cumulative traffic volume (CTV), annual average daily traffic (AADT), and average daily traffic of heavy goods vehicles (AADTHGV). The results show that the AADT and AADTHGV have a considerable impact on the road risk level. When the truck traffic volume is less than 1000 veh/d, the risk of horizontal curves changes less as road operational time goes. The research results can provide a reference for the road maintenance department to determine the timing of road maintenance.
A Novel Safety Assessment Framework for Pavement Friction Evolution Due to Traffic on Horizontal Curves
The friction coefficient is one of the dominant parameters affecting vehicle driving stability on horizontal curves. However, there is no comprehensive framework to assess the traffic safety on the horizontal curve with the evolution of the friction coefficient caused by the traffic flow. In light of this, this paper developed an integrated risk-assessment framework to evaluate the safety on the horizontal curve with the friction coefficient evolving under different traffic characteristics. The speed distribution on the horizontal curve of the freeway is obtained through field experiments that serve as the basic parameters of the model. A new multi-vehicle risk index (MRI) is introduced to assess the traffic safety risk for the horizontal curve by coupling the reliability theory and negative binomial. Three traffic characteristics are considered in the analysis: cumulative traffic volume (CTV), annual average daily traffic (AADT), and average daily traffic of heavy goods vehicles (AADTHGV). The results show that the AADT and AADTHGV have a considerable impact on the road risk level. When the truck traffic volume is less than 1000 veh/d, the risk of horizontal curves changes less as road operational time goes. The research results can provide a reference for the road maintenance department to determine the timing of road maintenance.
A Novel Safety Assessment Framework for Pavement Friction Evolution Due to Traffic on Horizontal Curves
Guilong Xu (Autor:in) / Jinliang Xu (Autor:in) / Chao Gao (Autor:in) / Rishuang Sun (Autor:in) / Huagang Shan (Autor:in) / Yongji Ma (Autor:in) / Jinsong Ran (Autor:in)
2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
Safety Analysis of Horizontal Curves Using Real Traffic Data
| Online Contents | 2014
Side Friction Demanded and Margins of Safety on Horizontal Curves
| British Library Conference Proceedings | 1996
Side Friction Demanded and Margins of Safety on Horizontal Curves
| British Library Online Contents | 1994
Side Friction Demanded and Margins of Safety on Horizontal Curves
| British Library Conference Proceedings | 1994