نتایج جستجو برای: roadside
تعداد نتایج: 2653 فیلتر نتایج به سال:
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...
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 ...
Advertisement disseminations based on Roadside Access Points (RAPs) in vehicular ad-hoc networks (VANETs) attract lots of attentions and have a promising prospect. In this paper, we focus on a roadside advertisement dissemination, including three basic elements: RAP Service Provider (RSP), mobile vehicles and shops. The RSP has deployed many RAPs at different locations in a city. A shop wants t...
The American public thinks of its highway network as a necessary convenience but rarely gives much thought to roadside environment. Yet, driving for pleasure is one of America’s most popular outdoor recreational activities. This area, however, has recently been brought into sharper focus. President Johnson, when recently discussing high way beautification said: “ By making our roads highways t...
In conditions with heavy traffic and crowds of people on roadside areas under skytrain stations in Bangkok, the natural air ventilation may be insufficient and air quality may be poor. A study of 350 air samples collected from the roadside, under skytrain stations in Bangkok, was carried out to assess microbial counts (210 air samples) and particulate matter (PM10) levels (140 samples). The res...
U-turn is a complex driving manoeuvre entailing 180-degree turn to change the direction of travel towards the opposite direction. A cross-sectional survey based on convenience sampling was conducted at 120 U-turns in Karachi from February to October 2013. Shopkeepers operating in the close vicinity of U-turns were interviewed. Out of the 120 U-turns studied, 87(72.5%) were without median and 33...
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...
The objective of this project was to develop sobriety tests that can be administered in the seated position to assist water patrol officers in detecting alcohol-related impairment in boaters. Four seated sobriety tests were administered to 330 boaters to determine the tests' usefulness in classifying boaters as having blood alcohol concentrations (BACs) below the illegal limit (BAC<.08%) or abo...
In Vehicular Ad-hoc Network (VANETs), security is a primary concern, as it affects traffic safety. Authentication in essence is an important security requirement to avoid attacks on vehicular communication. To provide authentication with some privacy to the users, we propose an authentication framework that uses pseudonyms, which are self-generated are used as key value in communication among v...
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