Preventing Capacity Drop at Isolated Merging Bottleneck through Variable Speed Limit Control

A Dynamic Speed Limit Control Approach for Highway Bottleneck Management

Most of the existing traffic control strategies implemented in many countries in the world tend to aim only at improving the efficiency of traffic output. However, decreased the delays and safer traffic are also important outcomes of traffic control. In this study, a dynamic algorithm for variable speed-limit control at toll booth zones is presented that can take full advantage of its dynamic f...

A Probe-Based Variable Speed Limit System

Disclaimer: This is a version of an unedited manuscript that has been accepted for publication. As a service to authors and researchers we are providing this version of the accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proof will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may...

Exploratory analysis of an optimal variable speed control system for a recurrently congested freeway bottleneck

This study presents two models for proactive variable speed limit (VSL) control on a recurrently congested freeway segment. The proposed model uses embedded traffic flow relations to predict the evolution of congestion patterns over the projected time horizon, and then computes the time-varying optimal speed limit to smooth traffic flows. To contend with the uncertainties associated with driver...

Infinitely Variable Capacity Control

Intelligent Control for the Variable-Speed Variable-Pitch Wind Energy System

In this paper, a new type of multi-variable compensation control method for the wind energy conversion systems (WECS) is presented. Based on wind energy conversion systems, combining artificial neural network (ANN) control and PID, a new type of PID NN intelligent controller for steady state torque of the wind generator is designed, by which the steady state torque output is regulated to track ...