Research on Safety and Traffic Efficiency of Mixed Traffic Flows in the Converging Section of a Super-Freeway Ramp

On-ramp merging areas are essential parts of freeways. The behavior vehicles is the main factor affecting continuity freeway traffic flow, which determines capacity line. With development innovative car technology, ACC technology has been widely used in actual vehicles. At same time, public’s demand for freeway-speed improvement increasing. However, evaluative research on freeway-speed-improvement schemes, safety, and efficiency, incomplete. Therefore, this paper aims at study mixed flow human-driven vehicles, simultaneously increasing maximum speed limit to 140 km/h, establishes a ramp-entry model through SUMO simulation platform. traffic-flow parameters upstream ramp entry downstream weaving area analyzed, including average speed, headway, lane-change rate. influence driving conditions with different proportions ramp-merging scenario analyzed from efficiency safety perspectives. Studies have shown that mixing can improve road, increase limited road capacity. When considering inclusion operating road.