In local version having light traffic, stopping is reduced and quasi nonstop traffic flow is introduced on {HEAD ~ locally controlled crossings} by {TAIL ~ sensor controlled traffic lights} operated by local processor  
by
In local version having light traffic , stopping is reduced and quasi nonstop traffic flow is introduced on { HEAD ~ locally controlled crossings } by { TAIL ~ sensor controlled traffic lights } operated by local processor
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH