ABSTRACT The Traffic congestion in a city are a serious issue that hinders the populations mobility. This study examines traffic congestion between Perungalathur to Urapakkam during peak and nom-peak hours. The QGIS application was used to analyses the study area at G.S.T road for a stretch of 6.03km from Perungalathur to Urapakkam. To gain a better knowledge of the causes of traffic and congestion, the number of vehicles travelling along GST Road was studied using video surveillance. The video survey was conducted through out peak and non-peak hours for three consecutive weekdays (Tuesday, Wednesday and Thursday). Finally, for Perungalathur to Urapakkam, traffic analysis and Environmental impact assessment like air pollution noise pollution and travel impact at Urapakkam to Perungalathur are study. Keywords: Traffic management system, Congestion, Vehicle counting and QGIS, Environmental Impact.