Dynamic Phase Signal Control Method for Unstable Asymmetric Traffic Flow at Intersections

A Study of Dynamic Right-turn Signal Control Strategy at Mixed Traffic Flow Intersections

Traffic conflicts among right-turn vehicles (RTVs), nonmotorized vehicles (NMVs) and pedestrians were examined for urban signalized intersections with exclusive right-turn lane. This study proposed an approach to dynamically calculate the duration of the prohibited right-turn for vehicles by using a measure called the Degree of Clustered Conflict (DCC). The process of DCC control includes: 1) q...

Intelligent Traffic Signal System for Isolated Intersections Dynamic Pedestrian Accommodation

Transportation Research Record: Journal of the Transportation Research Board, No. 2259, Transportation Research Board of the National Academies, Washington, D.C., 2011, pp. 96–111. DOI: 10.3141/2259-09 plex in nature because their scopes have been rapidly expanding far beyond the traditional realm. “A large number of variables are involved; the parametric relationships among them are not well-u...

A Stochastic Optimal Control Approach to Real-time, Incident-Responsive Traffic Signal Control at Isolated Intersections

Real-time incident-responsive traffic control and management is vital to development of advanced incident management systems in ITS. More importantly, it provides, from an academic point of view, the linkages between incident detection, incident management, and traffic signal control. This study explores the application of a stochastic optimal control approach to real-time incident-responsive t...

PEDESTRIAN CONTROL AT INTERSECTIONS - Phase III April

A study on traffic signal control at signalized intersections in vehicular ad hoc networks

The Seoul metropolitan government has been operating a traffic signal control system with the name of COSMOS (Cycle, Offset, Split MOdel for Seoul) since 2001. COSMOS analyzes the degrees of saturation and congestion which are calculated by installing loop detectors. At present, subterranean inductive loop detectors are generally used for detecting vehicles but their maintenance is inconvenient...