ABSTRACT The safety of highways with a high ratio bridges and tunnels is related to multiple factors, for example, the skid resistance pavement surface. In this study, distribution accidents under different conditions was calculated investigate relationship between road incidence traffic based on accident data Yuxiang highway. Statistical results show that weather alignment may affect accidents...

This report pertains to the selection of a minimum skid resistance for use as another guideline for surface improvements by the Texas Highway Department. This problem was approached from an accident standpoint as well as from a design standpoint, since experience on several sections of roadway indicated a sharp reduction of accidents after surface improvements. Skid resistance and accident data...

In this paper, two-state Markov switching models are proposed to study accident frequencies. These models assume that there are two unobserved states of roadway safety, and that roadway entities (roadway segments) can switch between these states over time. The states are distinct, in the sense that in the different states accident frequencies are generated by separate counting processes (by sep...

Frontage roads are most frequently used in rural and urban environments along freeway and full-controlled principal arterial corridors. Their primary function is to distribute and collect traffic between local streets and interchanges. They have been the primary design solution for providing access along Texas rural freeways and full-controlled principal arterials. With the growing public deman...

eCall is an automatic in-vehicle emergency call service with the main objective is to reduce emergency response to reach an incident location (e.g. accident, crisis situation). When an incident occurs somewhere, the in-vehicle embedded device receives information from the sensors and calls the public safety answering point (PSAP) while sending the received information, such the location (GPS co...

16 Ab",oc' In benefit-cost ani:llysis, trave l time saving represents a major determinant of the henefits from highway improvements . Current values of time arlopterl by the ~exas Highway Evaluation Mnrlel (HEEM) as we ll as those recommended by the Redbook are ~ai rly outdated. New estimates of the val ue of time for cars and trucks are needed for HEEM. Based on a telephone survey, thi s study...

background: injuries and fatalities from road traffic injuries are global public health concerns, and a major problem in the iran. this study aimed to explore strategies to control road traffic injuries (rti) in iran. methods: we conducted a qualitative study to explore possible ways to reduce the occurrence of road traffic injuries in iran in 2016. interviewees were purposively sampled from va...