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At merge and diverge segments, ramp traffic is a significant influencing factor on crashes [16].
Ramp traffic can interrupt mainline traffic, and longer acceleration lane may provide longer interruption area.
In this study, ramp traffic is found out to play a significant role for safety at merge and diverge segments.
For ramp traffic, the significance of MR affecting crashes is on the rise as mainline flow increases.
Quantitative results are provided and, based on these, a systematic technique for ramp design that aims to optimize the efficiency of underground mine ramp traffic flow is described.
With respect to the differences by facility type, at merge segment, MR gets to be a factor related to the 1st component due to the increased interruption of ramp traffic with the increase of traffic density.
Similar(52)
These intertwined, competing identities are central to what comes next for the Columbia River Crossing, a $3.4 billion bridge-replacement project of new highway ramps, traffic lanes and light rail linking Portland to Vancouver, Wash., that was supposed to resolve a traffic choke point.
Merging ratio (MR) or diverging ratio (DR) is defined as the proportion of on- or off-ramp traffic out of the sum of ramp and mainline traffic, respectively.
A year later, simple restriping created a second lane on the ramp, improving traffic dramatically.
This is especially problematic for a highway exit ramp where traffic needs to decelerate rapidly.
The advantages of the cell-based over a traditional simulation model include ease of visualization and simplicity in modeling spatial constraints (e.g., ramp restricting traffic to one-way flow).
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