trichy the trichy city traffic police have installed automated traffic signals at the palpannai junction where the trichychennai trichythanjavur national highway and other major highways intersect the signals which are currently undergoing trials will eliminate traffic bottlenecks especially during peak hours caused due to the unregulated movement of vehiclestraffic police sources that the trials were yielding positive results the stretch that connects thiruverumbur ariyamangalam on the thanjavur nh with palpannai further to gandhi market and tvs tollgate is facilitated with a pass time of 45 seconds the highest due to the high number of vehicles handled other stretches including gandhi market to ariyamangalam tvs tollgate to ariyamangalam were given 30 seconds pass time while the stretch between chennai nh to gandhi market and tvs tollgate was given 20 secondstill saturday we will gauge the response if needed the duration will be altered we can reduce the police personnel deployed in the junction gradually a traffic police official said the city police have planned to introduce led traffic signals akin to the mannarpuram intersection in the city