Effect of Road Width on Driver Behaviour Studied Using Acceleration Noise-A Case Study

Abstract

Traffic volume studies are conducted to determine the number, movements, and classifications of roadway vehicles at a given location. These data can help identify critical flow time periods, determine the influence of large vehicles or pedestrians on vehicular traffic flow, or document traffic volume trends. The length of the sampling period depends on the type of count being taken and the intended use of the data recorded. For example, an intersection count may be conducted during the peak flow period. If so, manual count with 15-minute intervals could be used to obtain the traffic volume data Motorists on a transportation facility very often evaluate the facility by the speed at which they can travel and by the uniformity of the speed. Travelers in a. vehicle will feel most comfortable if the vehicle is driven at a uniform speed. When the traffic on a highway is very light, a driver generally attempts, consciously or unconsciously, to maintain a rather uniform speed, but he never quite succeeds. He has to accelerate and decelerate occasionally instead. The distribution of his accelerations (deceleration is minus acceleration) essentially follows a normal distribution. From recent research results, the acceleration noise (AN) has proved to be a possible measurement for the smoothness or the quality of traffic flow. AN is defined as the standard deviation of the accelerations. The present investigation is carried in Benz’s circle Vijayawada results are drawn.