Skid resistance of road surface plays an important role on urban traffic accidents. It is thought that reduction of surface microtexture leads to reduced skid resistance. Hence, it affects driving safety negatively an...Skid resistance of road surface plays an important role on urban traffic accidents. It is thought that reduction of surface microtexture leads to reduced skid resistance. Hence, it affects driving safety negatively and may cause traffic accidents, This paper is about the effect of skid resistance and intersection safety. Urban four leg signalized intersections were selected from Isparta city. The surface frictional properties were measured and it was tried to find critical skid resistance value with the help of British Pendulum Tester. Macro texture values of the intersections were determined with Sand Patch test and concluded that surface macro texture contributes to skid resistance. An analysis technique based on probabili theory has been used. This method is used for expounding the interaction between skid resistance-intersection and accident rates. After the study results are evaluated, it is understood that pavement roughness is very important for urban intersection safety measures.展开更多
Pavement roughness(IRI—International Roughness Index values)influence the stability of traffic movements both on intercity roads and urban roads.This study is to determine the exact locations of critical pavement rou...Pavement roughness(IRI—International Roughness Index values)influence the stability of traffic movements both on intercity roads and urban roads.This study is to determine the exact locations of critical pavement roughness values that affect traffic motion stability and comfort in city centre highway arteries.Roughness data with 10 m intervals were collected on a 3140 m divided road containing three consecutive signalized intersections in the city centre arterial.These data were analysed using the distance-dependent Mann-Kendall trend analysis method and checkerboard model.The sections where roughness is important were determined at a 95%confidence interval.The results will show where future pavement improvements should be prioritized for municipalities and road maintenance engineers and will form a basis for the urban road management system.展开更多
文摘Skid resistance of road surface plays an important role on urban traffic accidents. It is thought that reduction of surface microtexture leads to reduced skid resistance. Hence, it affects driving safety negatively and may cause traffic accidents, This paper is about the effect of skid resistance and intersection safety. Urban four leg signalized intersections were selected from Isparta city. The surface frictional properties were measured and it was tried to find critical skid resistance value with the help of British Pendulum Tester. Macro texture values of the intersections were determined with Sand Patch test and concluded that surface macro texture contributes to skid resistance. An analysis technique based on probabili theory has been used. This method is used for expounding the interaction between skid resistance-intersection and accident rates. After the study results are evaluated, it is understood that pavement roughness is very important for urban intersection safety measures.
文摘Pavement roughness(IRI—International Roughness Index values)influence the stability of traffic movements both on intercity roads and urban roads.This study is to determine the exact locations of critical pavement roughness values that affect traffic motion stability and comfort in city centre highway arteries.Roughness data with 10 m intervals were collected on a 3140 m divided road containing three consecutive signalized intersections in the city centre arterial.These data were analysed using the distance-dependent Mann-Kendall trend analysis method and checkerboard model.The sections where roughness is important were determined at a 95%confidence interval.The results will show where future pavement improvements should be prioritized for municipalities and road maintenance engineers and will form a basis for the urban road management system.
