A Comparative Study of Sensors for Road Traffic Density Measurement

Sensors plays a vital role for measurement of traffic density on road. To acquire the traffic data from road various sensor were used. Different sensors have their own advantages and limitation in terms of accuracy in measurement. However a sensor varies from parameter to parameter i.e range, location of installation, power consumption, number of scanned lanes, features etc. This paper describes about the conventional sensors that were used for traffic density measurement in automatic traffic control system. Also the comparison between different sensors has been discussed in this paper.