A virtual topology over a wavelength routed WAN consists of clear optical channels between nodes called lightpaths. These carry traffic end-to-end without electronic switching, creating an optical layer of the topology. Virtual topology design aims at combining the best of optical switching and electronic routing abilities. Designing a virtual topology on a physical network consists of deciding...

In order to solve the system optimum dynamic traffic assignment problem, the whole link model with physical queue is used to formulate the single destination system optimum dynamic traffic assignment problem as a mixed linear program. A relationship between the cumulative curves and the wave speed presented by Newell (1993) is used to present a dynamic network model in considering spillback que...

Static single information form is a natural extension of the well-known static single assignment form. It is a program intermediate representation used in optimising compilers for imperative programming languages. In this paper we show how a program expressed in static single information form can be transformed into an equivalent program in functional notation. We also examine the implications ...

concerning the population growth and urban development, significant growth in the rate of personal car usage has caused more transportation and thus growth in occupying the street areas for parking vehicles. this has caused much transporting problems and traffic. hence concerning the parking issue is crucial in traffic and municipal management.the important issue is the suitable place for the p...

probabilistic approach of traffic assignment has been primarily developed to provide a more realistic and flexible theoretical framework to represent traveler’s route choice behavior in a transportation network. the problem of path overlapping in network modelling has been one of the main issues to be tackled. due to its flexible covariance structure, probit model can adequately address the pro...

Title of Document: A COMPARISON BETWEEN AN ORIGIN BASED METHOD AND A NONLINEARCOMPLEMENTARITY BASED METHOD FOR SOLVING THE TRAFFIC ASSIGNMENT PROBLEM Rafael E. Olarte M.Sc. in Civil and Environmental Engineering 2009 Directed By: Ali Haghani, Ph.D. Chair of the Department of Civil and Environmental Engineering This thesis compares Bar-Gera’s Method and Aashtiani’s Method for solving the static ...

When there are different routes from origin to destination in a network, the traffic divides itself over these routes. The resulting assignment is often determined by the travel times on the different routes. When control measures are implemented the travel times for some routes change, which can lead to a change in the assignment. This change in assignment can effect the performance of the who...