| Summary |
Wen-Cheng Wu, 2008.06
Department of Transportation Technology and Management National Chiao Tung University
Collection of the travel information plays an important role in Advanced Traveler Information System (APTS). The information could be collected by probe vehicles, so it’s necessary to know the number of probe vehicles that be assigned. This paper uses the freight vehicles as the part-time probe vehicles and focuses on the frequency that the freight vehicles in operation could support in the situation that the number of the freight vehicles recruited is known and the demand is deterministic. Our purpose is to construct a model that can estimate the frequency the freight vehicles recruited by the planner could support. This model is based on decision of the number of demand nodes that a vehicle need to service, the distribution of demand for each vehicle, assignments and calculation of the frequency with a relative error 10% in providing the information and the 95% confidence interval.
Hypothesis testing indicates that the difference of frequency between this model and VRP instances is not significant, this means the frequency from this model and VRP instances are the same. |
