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A platform for research: civil engineering, architecture and urbanism
Real-time signal control accounting for urban freight deliveries
Freight vehicles often block lanes of traffic on signalized arterials when double-parking to make deliveries in urban areas. When delivery vehicles block lanes of traffic near signalized intersections, the capacity of the intersection is affected. Current practice is for traffic signals to be timed assuming that each approach can serve vehicles at the unobstructed saturation flow. This paper presents a model for adapting the traffic signal timing in real time for signal cycles during which a delivery blocks a link upstream of the intersection. The model requires real-time information about the location of the double-parked delivery vehicle, which is assumed to be available from connected vehicle data from urban freight vehicles or from another detection system. The results show that for low levels of traffic demand, the signal control method reduces intersection delay compared to a signal that is timed for unblocked traffic. The algorithm also keeps the intersection approach undersaturated for higher levels of demand, which is important because deliveries can last for many signal cycles.
Real-time signal control accounting for urban freight deliveries
Freight vehicles often block lanes of traffic on signalized arterials when double-parking to make deliveries in urban areas. When delivery vehicles block lanes of traffic near signalized intersections, the capacity of the intersection is affected. Current practice is for traffic signals to be timed assuming that each approach can serve vehicles at the unobstructed saturation flow. This paper presents a model for adapting the traffic signal timing in real time for signal cycles during which a delivery blocks a link upstream of the intersection. The model requires real-time information about the location of the double-parked delivery vehicle, which is assumed to be available from connected vehicle data from urban freight vehicles or from another detection system. The results show that for low levels of traffic demand, the signal control method reduces intersection delay compared to a signal that is timed for unblocked traffic. The algorithm also keeps the intersection approach undersaturated for higher levels of demand, which is important because deliveries can last for many signal cycles.
Real-time signal control accounting for urban freight deliveries
Gonzales, Eric J. (author) / Christofa, Eleni (author)
2017-06-01
256563 byte
Conference paper
Electronic Resource
English
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