The use of newly emerging sensor technologies in traditional roadway systems can provide real-time traffic services to drivers through Telematics and Intelligent Transport Systems (ITSs). This paper introduces a smart roadside system that utilizes various sensors for driver assistance and traffic safety warnings. This paper shows two road application models for a smart roadside system and senso...

This paper presents a dynamic intermodal freight network scheme using a Discrete Element Method (DEM) approach for performing the microscopic simulation. The model is applied to a roadway network for freight movements from a port terminal. This approach was used to develop efficient control strategies for optimizing freight flow. The simulation model has various applications with the primary fo...

The demands on a driver to maintain a consistent path is reflected in the driver’s workload. Visual demand, which can be measured using vision occlusion, can be used to quantify driver workload. Vision occlusion blanks out the driver’s vision of the roadway using a visor or other similar device. By measuring the amount of time the driver is viewing the roadway, a measure of the information load...

This paper explores end-user sensor installation for domestic ubiquitous computing applications and proposes five design principles to support this task. End-user sensor installation offers several advantages: it can reduce costs, enhance users’ sense of control, accommodate diverse deployment environments, and increase users’ acceptance of the technology. The five design principles are develop...

The US Army Research Laboratory designed, developed and tested a novel switched beam radar system operating at 76 GHz for use in a large autonomous vehicle to detect and identify roadway obstructions including slowly-moving personnel. This paper discusses the performance requirements for the system to operate in an early collision avoidance mode to a range of 150 meters and at speeds of over 20...

Aiming at the surrounding rock failure of heterogeneous and unequal pressure circular roadways, approximate analytical algorithm plastic zone is proposed. Through comparison calculations numerical simulation, shape characteristics evolution law rock’s are studied, relative error two calculation methods analyzed. The results show following: (1) With an increase or decrease in lateral coefficient...