Accurate prediction of traffic signal duration for roadway junction is a challenging problem due to the dynamic nature of traffic flows. Though supervised learning can be used, parameters may vary across roadway junctions. In this paper, we present a computer vision guided expert system that can learn the departure rate (μ) of a given traffic junction modeled using traditional queuing theory. F...

Monitoring of roof activity is a primary measure adopted in the prevention of roof collapse accidents and functions to optimize and support the design of roadways in underground coalmines. However, traditional monitoring measures, such as using mechanical extensometers or electronic gauges, either require arduous underground labor or cannot function properly in the harsh underground environment...

Roadway networks span large distances and can be difficult to monitor. Most efforts to collect roadway usage data either require a large fixed infrastructure or are labor intensive. Technological advances in electronics and communication have recently enabled an alternative, Unmanned Aerial Vehicles (UAVs). UAVs capable of carrying sensors and communications hardware to relay data to the ground...

The reports presented by consulting firms show that annual energy costs generated by 340 million streetlights are expected to reach $23.9 to $42.5 billion by 2025. Those numbers reveal a motivation behind the research aiming at optimizing outdoor lighting energy efficiency. They show that even a small unit improvement can yield large benefits due to the effect of scale. The development of solid...

The all-pair-shortest-path (APSP) problem has a general application in many research fields. Different types of applications have different performance requirements. A traffic safety project in identifying spatially close crashes favors a pre-calculated APSP between all reference-sites in the roadway network. However, with the actual size of a practical statewide roadway network, the targeted A...

This paperlooks at litter cleanup efforts and associated costs in Michigan, and attempts to determine the proportion of litter composed of discarded beverage containers. A few studies have previously attempted to estimate cost savings from the reduced beverage container litter resulting from container deposit programs. However, the previous studies have looked only at roadway litter. Roadway li...

Wireless access vehicle environment (WAVE) architecture of intelligent transportation system has been standardized in IEEE 802.11p standard and it is going to be widely deployed in many roadway environments in order to provide convenient services. However, the IEEE 802.11p contention-based medium access control protocol would significantly downgrade transmission efficiency between road side uni...

Pervasive smart computing environments make people get accustomed to convenient and secure services. The overall goal of this research is to classify vehicles along the I215 freeway in Salt Lake City, USA. This information will be used to predict future roadway needs and the expected life of a roadway. The classification of vehicles will be performed by a synthesis of multiple sets of features....

Several previous studies have been performed to evaluate the performance of vehicle headlamps with new technologies (e.g., high-intensity discharge, light-emitting diode, and adaptive forward lighting systems). Most of these studies have provided empirical evidence suggesting the promise of these newer technologies for improving roadway safety by improving visual performance of drivers. Recent ...