The characteristics of traffic flows on signalized arterials are examined within a cellular automaton microsimulation model. The model is used to analyze arterial throughput and travel times for given densities, coordination schemes, and signal spacings. A fundamental three-dimensional relationship is established between flow, density, and offsets for signalized arterials. In particular, it is shown that arterial throughput is dependent on offsets and that the constituent single-intersection limiting capacity, as determined by the saturation flow and the green splits, can be realized only under optimal coordination conditions for a limited range of densities on the arterial. This finding is a manifestation of the important role that signal coordination and, in fact, intelligent transportation systems in general play in the operation of urban street networks.
Analysis of Traffic Flow Characteristics on Signalized Arterials
Transportation Research Record
Transportation Research Record: Journal of the Transportation Research Board ; 1883 , 1 ; 94-100
2004-01-01
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Traffic flow characteristics on signalized arterials
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