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An urban network of signalized intersections can be suitably modeled as discrete event system, in which the traffic light alternations are described by means of timed coloured Petri nets (TCPN). In this paper, a model of such a network via TCPN is used to state and solve the problem of coordinating several traffic lights with six and two phases. Moreover, the analysis of the control TCPN models is...
Traffic signal control is proposed for alleviating heavy traffic congestions in urban areas. It is important to measure traveling time along each network link in order to optimize urban traffic signal control. Traveling time measurement by using vision sensor has an advantage in cost compared with those by using spot sensor, license plate reader or floating car. Therefore, we have developed a vision...
Supply chain management is paid attention to every large enterprise. Enterprise reduces their transporting and distributing cost through the manner of subcontractors and shared transportation. The customer request for sending time of the goods is getting more strictly; it can be solved in the vehicle routing problem with time windows (VRPTW). Because the constraints of VRPTW include the length of...
In this paper, we propose an approach for forecasting traffic flow, in which a short-term forecasting scheme is combined with a long-term forecasting scheme for enhancing power of the forecasting model in the recent trend tracing and the "average" pattern identifying. We employ a double exponential smoothing (DES) model and a support vector machines (SVM) model for a short-term scheme, and...
The paper presents an evaluation model for the location decisions of road-rail intermodal freight hub. The problem of optimizing individual freight actor's benefits is addressed in the model which comprises four different modules. Each of the modules represents a hub user, a hub owner or operator, a transport network infrastructure provider and the affected local community. The model is aimed at providing...
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