抄録
The understanding of merging operational quality for expressway is very important to transportation engineers in order for planning, designing and maintaining the highways. Projected traffic demands along with the estimated ability of facilities in carrying traffic are crucial inputs to the planning of infrastructure expansions. Traffic engineers normally utilize traffic models prediction to anticipate congestion and potential breakdown at critical areas and through this approach they are able to develop appropriate countermeasures and route diversion strategies as well as in developing traffic management strategies to solve the congestion on the expressway. Merging Flow rates models were successfully developed and validated in these studies that are needed in order to understand the merging operation at ramp junction. The models are for estimating flow rates in lane 1 and 2 immediately upstream of the merge influence area.