نتایج جستجو برای: roadside features

تعداد نتایج: 525832  

2014
Rajwant Kaur

Diverse contaminants released into the environment through progress of urbanization and industrialization adversely affect human health. Among various sources of contaminants, especially, in big cities, automobiles play a significant role in aggravating the pollution. Various pollutants viz., heavy metals (Pb, Mn, Ni, Zn, As, Hg, Cd) and Polyaromatic hydrocarbons (Benzo-apyrene, fluoranthene, p...

2012
Pierre Delaigue Dhafer Marzougui Cing-Dao Kan

This study investigates the potential hazard to vehicles of excessive roadside edge wedge (defined as a wide, deep edge treatment) and develops a safety design countermeasure. Using the Human Vehicle Environment (HVE) simulation tool, a typical driving scenario, road profile, and vehicle and driver behavior were selected to represent high risk situations. Wedge heights and slopes were modeled a...

2011
Lei Zhang Qianhong Wu Bo Qin Josep Domingo-Ferrer

Most securityand privacy-preserving protocols in vehicular ad hoc networks (VANETs) heavily rely on time-consuming cryptographic operations which produce a huge volume of cryptographic data. These data are usually employed for many kinds of decisions, which poses the challenge of processing the received cryptographic data fast enough to avoid unaffordable reaction delay. To meet that challenge,...

Journal: :CoRR 2014
Anita B Beena Sheril Ramesh B. E

Advanced vehicle content distribution system (ACDS)is complemented by improved network connectivity with Mobile Network 3G, 4G network. Advanced content distribution system uses Access Points deployed along roadside. APs coordinate and collaborate to distribute content to vehicles in mobility. The infrastructure of deployed APs solves real time issues like predicting errors in movement, limited...

2008
D. Rosenbaum B. Charmette F. Kurz S. Suri U. Thomas P. Reinartz

We present an automatic traffic monitoring approach using data of an airborne wide angle camera system. This camera, namely the “3K-Camera”, was recently developed at the German Aerospace Center (DLR). It has a coverage of 8 km perpendicular to the flight direction at a flight height of 3000 m with a resolution of 45 cm and is capable to take images at a frame rate of up to 3 fps. Based on geor...

2015
Alexander Bigazzi

Integrating fixed and mobile roadway data 2 ABSTRACT Fixed-site and mobile data sources have distinct strengths for representing roadway conditions, and unique insights can be generated by combining the two. Ongoing research on an urban arterial roadway corridor combines distinct data sources for multi-criteria transportation facility performance assessment. The roadway is instrumented with an ...

Journal: :Environment international 2008
Sef van den Elshout Karine Léger Fabio Nussio

The EU directives on air quality force member states to inform the public on the status of the ambient air quality. The Internet is commonly used for this purpose and often air quality is being presented as an index ranging from good to bad. A review of existing websites and air quality indices shows that the way air quality is interpreted differs considerably. The paper presents a new air qual...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2014
V C Andrés-Valeri D Castro-Fresno L A Sañudo-Fontaneda J Rodriguez-Hernandez

Three different drainage systems were built in a roadside car park located on the outskirts of Oviedo (Spain): two sustainable urban drainage systems (SUDS), a swale and a filter drain; and one conventional drainage system, a concrete ditch, which is representative of the most frequently used roadside drainage system in Spain. The concentrations of pollutants were analyzed in the outflow of all...

Journal: :Eng. Appl. of AI 2009
Chenn-Jung Huang Yi-Ta Chuang You-Jia Chen Dian-Xiu Yang I-Fan Chen

The transmission technology for intelligent transportation systems can be typically classified into two categories, namely, road-to-vehicle communication (RVC) and inter-vehicle communication (IVC). RVCs perform the information communication service offer from road to vehicle whereas the IVCs perform the information communication through vehicles. This work proposes quality of service (QoS)-awa...

Journal: :BMJ 1989
P Silverston

The measurement of tissue oxygen saturation with a pulse oximeter is of proved value in the hospital setting. The development of a portable oximeter has allowed this investigation to be performed during the prehospital phase of a patient's care. Pulse oximetry was performed at the roadside in 25 patients with abnormal trauma scores and found to be of benefit in detecting and monitoring hypoxia ...

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