Road Visual Aids and Safety Measurements

Abstract

This project is developed to give a clear description of road visual aids i.e., road markings, traffic signs and traffic signals. In this project we designed emergency lanes for emergency conditions and road safety measurements are also developed.

Road markings (IRC 35-1997) are used as a means of controlling and guiding traffic. They are highly important on roads and intersections as they promote road safety and bring about smooth and harmonious flow of traffic along guided paths of travel. They also serve to supplement the messages conveyed by road signals and signs.

Road safety refers to methods and measures used to prevent road users from being killed or seriously injured. Typical road users include pedestrians, cyclists, motorists, vehicle passengers and passengers of on-road public transport.

Sight distance is the length of a road visible ahead to the driver at any instance. Sight distance available at any location of the carriageway is the actual distance a driver with his eyelevel at a specified height above the pavement surface has visibility of any moving object of specified height which is on the carriageway ahead. The sight distance between the driver and the object is measured along the road surface. In other words the distance visible ahead to the driver is very important for   safe vehicle operation on the highway.