Abstract
Due to increase of the urbanization and raising the number of the vehicles road traffic incident and delay time in traffic jam are the main concern of countries in all over the world. Due to this problem drivers face an elevated crash risk especially when drivers on freeway ramp interchanges compared with other sections of freeways. The definition of ramp was based on the type and number of lanes used by traffic to freeways. The vehicle accidents are prevalent on highway ramps because of over-speeding, related to the characteristics and circumstances of ramps. Site survey and observation has been done for each location to identify the road condition, adjacent environment and vehicle operations. SPSS is used to analysis the accidents that they are collected data from case study. Descriptive analyses are performed by output of the analyzing data of accident. Differences in accident rates are due to driver behavior, weather potential safety issues were identified at interchanges. Ramps are scheduled for auditing based on descending road speed limits.
Highlights
Nowadays, because of increasing the number of the vehicles in many cities in the world, drivers are facing many serious land transport challenges (Shokri et al, 2010)
In most Asian countries such as Tianjin, Tehran, Kuala Lumpur and Jakarta fast growth and expansion of urbanization have led to an increased demand for urban transport, namely automobiles (Altef et al, 2013a, b)
This application is accompanied by an alarming increase in the transport mechanism with consequent high levels of road traffic congestion, obstacles to economic development, pollution peaks and elevated costs for energy, which is often imported (Blaikie, 2008; Ismail et al, 2012)
Summary
Because of increasing the number of the vehicles in many cities in the world, drivers are facing many serious land transport challenges (Shokri et al, 2010). Traffic accidents on congested freeways do not usually result in fatal or even very severe injuries, they are responsible for a substantial fraction of the unpredictable delays many of us regard as unavoidable aspects of urban life (Shokri et al, 2012b). Such accidents occur when a platoon of vehicles successively brakes and the braking deceleration of at least one vehicle is not sufficient to Corresponding Author: Foad Shokri, Department of Civil and Structural Engineering, Faculty of Engineering and Build Environment, Sustainable Urban Transportation Research Centre (Sutra), University Kebangsaan Malaysia, 43600, UKM Bangi, Selangor Dural Ehsan, Malaysia. Reducing the frequency of such collisions, for example by improving the competency of drivers or deploying in-vehicle collision-avoidance technology, could help reduce travel delays without resorting to expensive additions to highway capacity (Ismail et al, 2013; Shokri et al, 2009a)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
