Optical sensors are used for several ITS applications, including lateral control of vehcles, traffic sign recognition, car following, autonomous vehicle navigation and obstacle detection. This paper treats the performance assessment of a sensodimage processor used as part of an on-board countermeasure system to prevent single vehicle roadway departure crashes. Sufficient image contrast between ...

BACKGROUND There is evidence that adolescence is a critical period of decline in physical activity. However, adolescents may have limited opportunities to be physically active outdoors if their parents are concerned about neighborhood safety and restrict their adolescent's physical activity within their neighborhood. Pathways that lead to parental restriction of adolescents' physical activity (...

In the past decade a lot of research has been done on vision based real-time advanced driver safety system (ADAS). Many OEM car manufacturing companies have stressed their research on ADAS so as to increase the vehicle and driver safety. This work is aimed at developing an algorithm for on road lane departure warning (LDW) system. LDW can be successfully used for dropping the on road accidents ...

Travel time has been identified as an important variable to evaluate the performance of a transportation system. Based on the travel time prediction, road users can make their optimal decision in choosing route and departure time. In order to utilize adequately the advanced data collection methods that provide realtime different types of information, this paper is aimed at a novel approach to t...

Often modern cars have a collision avoidance system built into them known as Pre-Crash System, Forward Collision Warning System, or Collision Mitigation System in order to reduce the severity of a collision. But majority of vehicles on the road, especially heavy motor vehicles lack in such a system. In this paper, the implementation of the Collision Avoidance System is aimed to reduce the risks...

Bringing more, possibly longer, articulated vehicles to urban areas for goods delivery provides significant benefits, in terms of lower fuel consumption and more efficient operation. However it may also increase the risk of accidents with vulnerable road users (VRUs) such as pedestrians and cyclists. Simulations of HGV cornering manoeuvres were carried out to examine the vehicle’s cut-in and cl...

In this letter, we propose a novel approach using wireless sensor networks (WSNs) to enhance the safety and efficiency of four-way stop-sign-controlled (FWSC) intersections. The proposed algorithm provides right of way (RoW) and crash avoidance information by means of an intelligent WSN system. The system is composed of magnetic sensors, embedded in the center of a lane, with relay nodes and a ...

An attractor, in complex systems theory, is any state that is more easily or more often entered or acquired than departed or lost; attractor states therefore accumulate more members than non-attractors, other things being equal. In the context of language evolution, linguistic attractors include sounds, forms, and grammatical structures that are prone to be selected when sociolinguistics and la...

The uniqueness of individuals is a striking scientific fact, but it is just one of those facts that can hardly be done justiceto in an obituary notice. In writing this brief memoir of my departed friend, Ernest Blacker, I am regretfully conscious of this shortcoming. It may, however, be stated that his was a cheery, neat, alert and debonair personality, rich in human sympathies and sociabilitie...

Most songbird migrants travel between their breeding areas and wintering grounds by a series of nocturnal flights. The exact nocturnal departure time for these flights varies considerably between individuals even of the same species. Although the basic circannual and circadian rhythms of songbirds, their adaptation to migration, and the factors influencing the birds' day-to-day departure decisi...