Individuals of gregarious species that initiate collective movement require mechanisms of cohesion in order to maintain advantages of group living. One fundamental question in the study of collective movement is what individual rules are employed when making movement decisions. Previous studies have revealed that group movements often depend on social interactions among individual members and s...

Regular physiological observations were made on the members of the NorwegianBritish-Swedish Expedition 1949-52 (NBSX) to the Antarctic (Giaever, 1954) during their 2-year stay in the Antarctic as well as before they left for the south and after they returned home. The NBSX landed in the Antarctic in February 1950 and departed in January 1952. Accounts of the climate and working conditions on th...

The prediction of received power in the adjacent zone of a Dedicated Short Range Communications (DSRC) system operating inside an arched transportation tunnel is discussed. Wideband directional channel sounding was conducted inside the tunnel, and the gain, angleof-arrival and delay of each propagation path were estimated from the measured data. By simulating application antennas according to t...

PURPOSE Mild cataracts can interfere with visually dependent everyday activities, although they only minimally affect static visual acuity. This study compared the effects of simulated cataracts with that of optical blur on driving performance and determined the extent to which acuity could account for variations in driving performance either alone or in combination with supplementary vision te...

Vehicular Ad-Hoc Networks (VANETs), a special kind of Mobile Ad-Hoc Networks (MANETs), where wirelessequipped (road) vehicles form a network without any additional infrastructure. Due to the fast growing number of vehicles and saturation of the transportation infrastructure traffic congestion, accidents and transportation delays become unavoidable. Several measures are implemented in order to s...

Vehicular Ad-hoc Networks (VANETs) are having a significant impact on Intelligent Transportation Systems, specially on the improvement of road safety. Cooperative/Chain Collision Avoidance (CCA) application comes up as a solution for decreasing accidents on the road, therefore it is highly convenient to study how the system of vehicles in a platoon will behave at different stages of technology ...

Despite a trend towards increased road safety, fatal and/or serious accidents induce a significant toll each year. We work towards improved road safety through the development of an intelligent driver assistance system that monitors the driver’s performance and assists with vehicle guidance. This complex task is decomposed into subsystems including lane-keeping, obstacle avoidance, sign detecti...

Recent advances in VANET technologies have propelled the development and deployment of a wide variety of Vehicular Information Systems (VIS) to vehicles. Such systems provide real-time, crucial information, to drivers, ranging from collision avoidance warnings to the availability of road-side facilities. Despite the invaluable information provided by such systems, the imposed network overhead, ...


 This paper is used to enhance the driver assistance system for collision avoidance. The advanced (ADAS) most innovative technology in auto mobile industry. Our focuses on problem of road mishaps. Most accidents occur due negligence. main purpose our propose a method avoid such using at low cost. We focus functions avoidance and liquor detection give suitable result all problems. implemen...