Traffic assignment algorithms are used to determine possible use of paths between origin-destination pairs and predict traffic flow in network links. One of the main deficiencies of ordinary traffic assignment methods is that in most of them one measure (mostly travel time) is usually included in objective function and other effective performance measures in traffic assignment are not considere...

Advanced traffic management based on the Dynamic Resource Assignment allows a broadband satellite system such as EuroSkyWay (ESW) to dynamically assign the resources of connections. The mechanisms of the dynamic assignment exploit variations of Burstiness exhibited by real time and non real time Variable Bit Rate traffic sources to perform an optimised resource redistribution. The efficiency of...

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...

To maintain an internally consistent representation with actual traffic conditions, this paper presents an OD demand consistency checking and updating model for on-line dynamic traffic assignment operation. Both predictive and reactive approaches are proposed to minimize (1) the deviations between simulated states and real-world observations and (2) OD demand adjustment magnitude. The two objec...

In this paper, we first define so-called J-functions of First-In-First-Out violation, from which we define J-equilibria and a corresponding dynamic model of changing path flows, called J-system. Then we demonstrate that for fixed demand the objective function in the BMW’s mathematical programming formulation (Beckmann, McGuire, and Winsten, 1956) can be interpreted as the total energy of J-syst...

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...