Intersections in the urban network are potential sources of traffic flow inefficiency. Existing intersection control mostly adopts “cross” pattern model, while use roundabout circular is rather sparse. Connected and autonomous vehicle (CAV) technologies can enable roundabouts to better compete with traditional designs terms performance. This study proposes a strategy for CAVs enhance performanc...

In recent years, a truck-trailer system is the most useful physical distribution system. The truck-trailer systems have more convenience than coastal services or freight trains. Meanwhile, problems of the traffic jam and the air pollution in an urban area have become serious, year after year. Therefore improvement and rationalization of the transport efficiency are social needs. There are many ...

The speed limit changes frequently throughout the transportation network, due to either safety (e.g., change in geometry) or congestion management (e.g., speed harmonization systems). Any abrupt reduction in the speed limit can create a shockwave that propagates upstream in traffic. Dealing with such an abrupt reduction in speed limit is particularly important while designing control laws for a...

The problem of controlling a string of vehicles moving in one dimension is considered so that they all follow a lead vehicle with constant spacing between successive vehicles. The goal of this paper is to consider the effects of parasitic time delays, lags and comfort specification. The contribution of this paper is two-fold. First, negative effects of the parasitic time delays and lags on the ...

Congestion on highways is becoming a bigger problem every day. With the increasing need for more highway capacity, which cannot always be met by building new highways, opportunities must be found in state-of-the-art technologies for more efficient traffic management. In this thesis traffic control is studied where the traffic consists solely out of intelligent vehicles arranged in platoons, i.e...

Additional energy source of hybrid electric buses comprises new control tasks. One of the main challenges of hybrid electric buses is the integrated control between traction motor and brakes, associated with which is the problem of switching traction motor and brakes. Existing control techniques only provide a result of frequent switch and jerky ride. In this paper, we propose a control strateg...

We focus in this article on the analysis of an acceleration law for a following autonomous vehicle with constant time headway goal. We rst deene a function that measures the positioning of the following vehicle compared to the leading vehicle, w.r.t. the desired time headway. We study the convergence and limit of this positioning function, and prove the asymptotic stability of our acceleration ...

This paper describes work on the development of an actionable model of situation awareness for Army infantry platoon leaders using fuzzy cognitive mapping techniques. Developing this model based on the formal representation of the platoon leader provided by the Goal-Directed Task Analysis (GDTA) methodology advances current cognitive models because it provides valuable insight on how to effecti...

Platoon formation of highway vehicles is a critical foundation for autonomous or semiautonomous vehicle control for enhanced safety, improved highway utility, increased fuel economy, and reduced emission toward intelligent transportation systems. Platoon control encounters great challenges from vehicle control, communications, team coordination, and uncertainties. This paper introduces a new me...