Research recently conducted at the University of Central Florida involving crashes on Interstate-4 (I-4) freeway in Orlando, Florida led to the creation of new statistical and neural networks models that are capable of determining rear-end and lane-change crash risks along the freeway in real-time. For determining the rear-end crash risk, it was found that rear-end crashes occur within one of t...

M. Papageorgiou, Dynamic Systems and Simulation Laboratory, Technical University of Crete, 73100Chania, Greece. H. Hadj-Salem, INRETS-DART, 2 avenue du Gl. Malleret Joinville, 94114 Arcueil, France. F. Middelham, Public Works and Water Management, Transport Research Center, Boompjes 200, P.O.B. 1031, 3000 BA Rotterdam, Netherlands. Asservissement Linéaire d’Entrée Autoroutière (ALINEA), a local...

As an efficient traffic control strategy to ameliorate freeway traffic congestion, ramp metering has been successfully applied in the US. However, the applicability and effectiveness of a ramp-metering strategy are required to be investigated during the preimplementation phase in order to ensure the success of the implementation. The use of traffic simulation models can provide a quick and cost...

We investigate the stability of a nonlinear (piecewise linear and possibly discontinuous) model of a freeway onramp, controlled by two popular onramp metering schemes: Alinea and Percent-Occupancy. The freeway model is based on Daganzo’s cell-transmission model and can be understood as a hybrid system switching among several discrete-time linear dynamic equations. It is shown, under conditions ...

This paper simulates, analyzes, and compares, for two case studies (one synthetic freeway one real-life freeway), the behavior of Logic-Based Traffic Flow Control (LB-TFC), an integrated control strategy Ramp Metering (RM) installations Variable Speed Limits (VSLs) that was proposed derivated in first part work (‘Part 1: Controller’). For study, which presented work, performance LB-TFC is compa...

A real-life motorway in Belgium is studied and a comparison is made between a simulation of a morning rush hour situation without control and a simulation of a morning rush hour situation with ramp metering implemented. Two types of controllers are compared: a traditional ALINEA based controller and a model predictive control based ramp metering controller. In order to evaluate the controllers ...

“...melindungi segenap bangsa Indonesia dan seluruh tumpah darah untuk memajukan kesejahteraan umum, mencerdaskan kehidupan bangsa, ikut melaksanakan ketertiban dunia yang berdasarkan kemerdekaan, perdamaian abadi, keadilan sosial...”. (Pembukaan UUD 1945 Alinea 4)

This paper aims to evaluate and compare the effects of different methods of ramp metering on the operational conditions of traffic flow at three levels: the network level (including the freeway and its connected ramps), the entrance ramp, and the upstream segment of the entrance. To achieve this aim, one of the most important urban freeways in the metropolis of Isfahan was selected. The traffic...