In the 1960s the Worboys committee suggested that road traffic signs should be predominately symbolic, because they are clearer from a distance. Only eight countries that replied had a sign representing older people (table). The Namibian sign illustrated a generic picture of a pedestrian with the words “elderly people” below (fig 2). This avoids stereotyping, but the sign may not be as quickly ...

in this study, a numerical computational fluid dynamics study is conducted in order to predict the aerodynamic forces on the np car. the turbulent air flow around the car is modeled using the realizable k-ε model. first, results are validated against those presented for the ahmed’s body. next, the fluid flow around the car is simulated for different car speeds ( to mph) and flow directions ( to...

There has been an increasing concern about inactive drivers who would easily lead to road accidents and fatalities once return to driving. This study investigated the re-usability of traffic signs for inactive drivers with consideration of driver factors and cognitive sign features. Fifty-seven Hong Kong Chinese, who possessed a full driving license but had not driven for an extended period, co...

The periodic inspection of certain infrastructure features plays a key role for road network safety and preservation, and for developing optimal maintenance planning that minimize the life-cycle cost of the inspected features. Mobile Mapping Systems (MMS) use laser scanner technology in order to collect dense and precise three-dimensional point clouds that gather both geometric and radiometric ...

The last decade has witnessed the introduction of several driver assistance and active safety systems in modern vehicles. Considering only systems that depend on computer vision, several independent applications have emerged such as lane tracking, road/traffic sign recognition, and pedestrian/vehicle detection. Although these methods can assist the driver for lane keeping, navigation, and colli...

Inventory of road infrastructure represents a key application for integrated mobile mapping systems. The classical approach is to post-process geo-referenced imagery that has been captured from mobile mapping vans while driving within the road. Problems arise then within city centres where dense traffic and parking vehicles may often hinder occlusion free image captures of the objects of intere...

now a day’s Road accidents are common in developed as well as developing countries. These accidents happen due to different different reasons like sleeping disorders, working in night shift or more than eight hours as over time, side effects of medicine, alcohol, speeding, freakishness of teenager’s etc. One of the most important reasons is drowsiness. Drowsiness means sleepiness, which affects...

Road sign detection is important to a robotic vehicle that drives on roads automatically. In this paper, road signs are detected by means of rules that restrict and require signs to appear only in limited regions using wireless. They are then recognized using a PAN ID matching method. The method is fast and can easily be modified to include new classes of signs. As with any vehicle, an autonomo...

Temporary road signage is used throughout networks to regulate traffic and provide warnings users. Wind other factors induce frequent falling of temporary are a major safety concern that needs be addressed. The main aim this paper was gain an understanding sign stability in the presence passing trains investigate possibility stabilising through appropriate design modifications. Simulations expe...