Transportation Research Record: Journal of the Transportation Research Board, No. 2223, Transportation Research Board of the National Academies, Washington, D.C., 2011, pp. 9–17. DOI: 10.3141/2223-02 Operating speed is most frequently represented by the 85th percentile speed (V85) of vehicles passing at a given road location, in a nonplatoon condition, and it is usually determined by spot speed...

In the current study we examined the relationship between drivers’ eye movement patterns and driving performance in a dual-task driving paradigm. Drivers performed two tasks in a driving simulator. In a car following task, drivers were asked to maintain a constant headway from a leading vehicle as it varied its speed. In the second task (light detection task), drivers tried to detect changes in...

The growth of AVL (Automatic Vehicle Location) systems leads to huge amount of data about different parts of bus fleet (buses, stations, passenger, etc.) which is very useful to improve bus fleet efficiency. In addition, by processing fleet and passengers’ historical data it is possible to detect passenger’s behavioral patterns in different parts of the day and to use it in order to improve fle...

We calculate the distribution of the distance headways (i.e., the instantaneous gap between successive vehicles) as well as the distribution of instantaneous distance between successive jams in the Nagel-Schreckenberg (NS) model of vehicular traffic. When the maximum allowed speed, Vmax, of the vehicles is larger than unity, over an intermediate range of densities of vehicles, our Monte Carlo (...

Tailgating is often implicated as a leading contributor to rear-end collisions but this behaviour is difficult to remediate because drivers are poor at estimating their own headway. Our first goal was to compare novice and fully licensed drivers as they applied existing headway interventions in a driving simulator. Our second goal was to develop an automated, reward-based approach to encourage ...

The addition of control systems to highway vehicles has received considerable attention in recent years. Much of this work pertains to the development of control systems for passenger cars. However, since the power-to-weight ratios of heavy trucks make them quite different from passenger cars with regard to maintaining speed and headway, tieaVy·tnickS merit special attention. This paper focuses...