A feasible green light assignment is an assignment of time period to each traffic stream so that only compatible traffic streams are allowed to recieve overlapping time period. In case of an intersection, it is almost always possible to find several feasible green light assignments. We usually have some goal such as to minimise the total waiting time, to maximise the volume of flow etc. , to be...

This paper proposes some novel techniques to accommodate users with different transmission rate requirements in a CDMA system which employs orthogonal variable spreading factor codes. Several static and dynamic code assignment strategies are put forth and their behavior investigated, in terms of call blocking probability and number of required call reassignments. Their efficiency in dealing wit...

Various models of traffic assignment under stochastic environment have been proposed recently, mainly by assuming different travelers’ behavior against uncertainties. This paper focuses on the expected residual minimization (ERM) model to provide a robust traffic assignment with an emphasis on the planner’s perspective. The model is further extended to obtain a stochastic prediction of the traf...

The stability of a user equilibrium determines whether it could be realized or sustained in a transportation network, when subject to perturbations in traffic conditions and drivers’ route choice behaviors. In this paper, with a simple deterministic dynamical system model of the traffic assignment problem, we first develop a systematic approach to analyzing asymptotic stability and instability ...

Traffic congestion is a major problem in urban areas that has a significant adverse economic impact through deterioration of mobility, safety and air quality. As a result, the importance of better management of the road network to efficiently utilize existing capacity is increasing. To that end, many urban areas build and operate modern Traffic Management Centers (TMCs), which perform several f...

Nonuniform traffic patterns can severely degrade the performance of wormhole-routing mesh networks in multiprocessor systems. For example, under a temporary hot-spot traffic, a saturation tree might build up temporarily within the network resulting in a temporary network overload that will delay messages substantially. To the knowledge of the authors, no mechanisms were proposed in the open lit...

Wavelength Division Multiplexed switching networks are important for the future transport networks. This paper analyzes the performance of various wavelength assignment algorithm and their effect on the blocking probability of the connection request in the optical network with traffic grooming. The wavelength assignment is a unique feature in wavelength routed network that distinguish them from...

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...