Promising Bioalcohols for Low-Emission Vehicles

Scorecard Rates Emission Reductions of Hybrid Vehicles

U.S. Forest Service Examines Fire Retardant Policy As fire season in the western United States peaks, the U.S. Forest Service is incorporating public comments into a draft environmental impact statement (DEIS) published earlier this year.1 The DEIS was developed in response to a July 2010 ruling by Montana’s Federal District Court that U.S. Forest Service protocols for aerial application of fir...

Assessing the Diffusion of a City Logistics System Based on Low Emission Vehicles

Health Monitoring for Composite under Low-Cycle Cyclic Loading, Considering Effects of Acoustic Emission Sensor Type

Composites have been widely used in the aerospace industry. Due to the requirement of a high safety for such structures, they could be considered for health monitoring. The acoustic emission approach is one of most effective methods for identifying damages in composites. In this article, standard specimens were made from carbon fibers and the epoxy resin, with the [03/902/...

Microscopic Emission and Fuel Consumption Modeling for Light-duty Vehicles Using Portable Emission Measurement System Data

Microscopic emission and fuel consumption models have been widely recognized as an effective method to quantify real traffic emission and energy consumption when they are applied with microscopic traffic simulation models. This paper presents a framework for developing the Microscopic Emission (HC, CO, NOx, and CO2) and Fuel consumption (MEF) models for light-duty vehicles. The variable of comp...

Low-floor Light Rail Vehicles

his study explores the option of integrating a low-floor extension (LFE) module into the existing light rail vehicle to augment current service with low-floor boarding and simultaneously to increase passenger capacity. In an effort to minimize the overall weight of the LFE, this study examines two feasible approaches for specifying the longitudinal strength of the LFE that are consistent with c...