The paper presents results from an experimental and numerical study of wind-induced flows and transportation patterns in highway wet detention ponds. The study presented here is part of a general investigation on road runoff and pollution in respect to wet detention ponds. The objective is to evaluate the quality of long term simulations based on historical rain series of the pollutant discharg...

This paper describes the work and results of the second phase of research sponsored by the Federal Highway Administration (FHWA) initiated to study the relationship between traffic activity and ambient PM2.5 concentrations. The study, entitled “Estimating the Transportation Contribution to Particulate Matter Pollution”, had the objective of performing a correlation analyses on particulate matte...

Millimeter wave technology advances have made possible active and passive millimeter wave imaging for a variety of applications including advanced plasma diagnostics, radio astronomy, atmospheric radiometry, concealed weapon detection, all-weather aircraft landing, contraband goods detection, harbor navigation/surveillance in fog, highway traffic monitoring in fog, helicopter and automotive col...

ÐIn this paper we review the theoretical and empirical literature on the cost structure of the provision of intercity highway transportation and specify and estimate our own cost functions. We develop a full cost model which identi®es the key cost components and then estimate costs component by component: user costs, infrastructure costs, time and congestion costs, noise costs, accident costs, ...

Autonomous vehicles promise numerous improvements to vehicular traffic: an increase in both highway capacity and traffic flow because of faster response times, less fuel consumption and pollution thanks to more foresighted driving, and hopefully less accidents thanks to collision avoidance systems. And their drivers can save time for more useful activities. In order for these vehicles to safely...

The present study reports the analysis of hourly equivalent noise levels 100 sites in NCT (National Capital Territory) Delhi and correlates with community perception that has not been reported so far. presents environmental scenario Delhi, India, including 19 commercial, 9 industrial, 16 residential, 43 silence zones, 3 highway sites, 10 intersection sites. were monitored at various timings bet...

A recently as the 1960s, hospitals were famous for their quiet and serene environment. Noise restrictions were zealously enforced internally by uniformed nurses and externally by street signs around the perimeter declaring “Hospital—Quiet Zone.” Hospitals and especially operating rooms are no longer quiet.1 In 1972, before the introduction of much of the noisy equipment now routinely used durin...

To develop the usefulness of plants as bioindicators requires an appropriate selection of plant species which entail an utmost importance for a particular situation. In the present study a periodic evaluation of air pollution tolerance index [APTI] of selected tree species such as Polyalthia longifolia, (Sonner) Thw., Alstonia scholaris, R. Br., Mangifera indica, L., and shrubs Clerodendron inf...

BACKGROUND Few epidemiological studies of air pollution have used residential histories to develop long-term retrospective exposure estimates for multiple ambient air pollutants and vehicle and industrial emissions. We present such an exposure assessment for a Canadian population-based lung cancer case-control study of 8353 individuals using self-reported residential histories from 1975 to 1994...