Particulate matters (PM) at the pedestrian level significantly raises the health impacts in the compact urban environment of Hong Kong. A detailed investigation of the fine-scale spatial variation of pedestrian-level PM is necessary to assess the health risk to pedestrians in the outdoor environment. However, the collection of PM data is difficult in the compact urban environment of Hong Kong d...

Integrated assessment models have been used to explore cost effective abatement strategies in connection with negotiations on the Gothenburg protocol under the UN/ECE Convention on Long Range Transboundary Air Pollution (CLRTAP). A variety of spatial and temporal issues must be addressed in order to model the multi-scalar processes involved and develop nested Integrated Assessment Models (n-IAM...

This paper documents some tests of 802.11b wireless communication technology for vehicle to roadside communication. Data has been collected for a single vehicle communicating with a dedicated roadside antenna. The work is part of a larger effort to benchmark possible throughput of off-the-shelf wireless technologies. The results show that high-speed communication is possible over distances of u...

Urban air pollution is one of the major environmental problems faced by the developing countries. Studies in large Indian cities revealed that ambient air pollution concentrations are at such levels where it can cause serious health impacts. Lucknow, a fast growing city is not an exception to this. Researchers from the city have studied various aspects of air pollution during the last one and h...

The present study investigated the effects of discomfort glare on driving behavior. Participants (old and young; U. S. and Europeans) were exposed to a simulated low-beam light source mounted on the hood of an instrumented vehicle. Participants drove at night in actual traffic along a track consisting of urban, rural, and highway stretches. The results show that the relatively low glare source ...

ƒ A significant minority of REU reported engaging in specific harm reduction strategies as a result of the introduction of roadside drug testing. BACKGROUND Driving under the influence of illicit drugs and/or alcohol is a significant road safety concern (1-3). Although changes in actual crash risk vary between drugs, all illicit drugs are associated with cognitive and performance effects that a...

The roadside-to-vehicle communication system is an infrastructure network to be deployed along the roads, which is an important part of the vehicular Ad Hoc networks for future intelligent transportation systems. Vehicle position estimation is a key technology for roadside-to-vehicle communication. In this study, a roadside-to-vehicle communication system is proposed where a camera is fixed on ...