Passenger cars are the primary means of transportation in Europe. Over the past decade, a great deal of attention has therefore been paid to reducing their emissions. This has resulted in notable technical progress, leading to unprecedentedly low exhaust emissions. In the meantime, emissions from motorcycles have been ignored due to their subordinate role in traffic. Even though the motorcycle ...

53 Abstract Policymakers are beginning to appreciate the efficiency properties of pollution taxes, but concerns over equity remain. In this paper, we assess the distributional aspects of three types of emissions fees for vehicles—a fee based on total annual emissions; a fee based on emissions rates, in grams per mile; and a fee based on annual vehicle mileage—and we compare the impacts of fees ...

Freight transport in urban areas has few opportunities for modal shift away from road. What policy options might there be to reduce greenhouse gas emissions from road freight vehicles? A combined travel demand, traffic network and emissions model was established to test the impacts of the generic policy initiatives ‘best practice’ truck fleet fuel efficiency, general reductions in peak period t...

INTRODUCTION Several uses of remote sensing devices (RSDs) have been proposed, such as on-road identification of high emitting vehicles and monitoring on-road vehicle emissions for program evaluation purposes. The Bureau of Automotive Repair (BAR) conducted a study to evaluate the ability of RSDs to consistently identify vehicles with excessive emissions and correctly classify the vehicles as f...

Mobile sources significantly contribute to ambient concentrations of airborne particulate matter (PM). Source apportionment studies for PM10 (PM < or = 10 microm in aerodynamic diameter) and PM2.5 (PM < or = 2.5 microm in aerodynamic diameter) indicate that mobile sources can be responsible for over half of the ambient PM measured in an urban area. Recent source apportionment studies attempted ...

The emission inventory for London indicates that nearly 80% of the particulate emissions derive from vehicular sources. Most of this mass is in the form of ultrafine submicrometer particles which are of concern because of their influence on lung function. The prediction of their dispersion in the atmosphere coupled to the physical and chemical transformations which affect their size distributio...

The University of Denver’s remote sensor for on-road motor vehicle carbon monoxide (CO) and hydrocarbon (HC) emissions was used in August and October, 1991, a t two different locations in the Denver area. The results of analysis for HC emissions show a similar skewed distribution for the two data sets, although the average HC emissions are very different for the two data sets because different ...

Abstract—This paper describes how to dimension the electric components of a 48V hybrid system considering real customer use. Furthermore, it provides information about savings in energy and CO2 emissions by a customer-tailored 48V hybrid. Based on measured customer profiles, the electric units such as the electric motor and the energy storage are dimensioned. Furthermore, the CO2 reduction pote...