Enlarged Stopping Distance. To Improve Vehicle Discharge at Urban Signalised Intersections

      Аннотация: Normally, vehicles queued at an intersection reach maximum flow rate after the fourth vehicle and results in a start-up lost time. This research demonstrated that the Enlarged Stopping Distance (ESD) concept could assist in reducing the start-up time and therefore increase traffic flow capacity at signalised intersections. In essence ESD gives sufficient space for a queuing vehicle to accelerate simultaneously without having to wait for the front vehicle to depart, hence reducing start-up lost time. In practice, the ESD concept would be most effective when enlarged stopping distance between the first and second vehicle allowing faster clearance of the intersection.

Ключевые слова: Traffic Management, Signal Timing, Enlarged Stopping Distance (ESD), Urban signalised intersections, Departure model, Vehicle trajectory, Discharge pattern, Discharge headway, Driver response time, Saturation flow rate, Start-up lost time, ‘Keep Clear’ road making, NGSIM Peachtree Street data, Gold Coast Nerang Street data