LAS VEGAS - A viewer says only one left turn lane exists for drivers looking to travel from westbound Flamingo Road to southbound Grand Canyon Drive. The viewer asks if crews can install a lead/lag turning cycle to alleviate delays.
The lead/lag cycle is a sequence that allows one left and thru movement, then both thru movements and, finally, the other left and thru movement. It's akin to getting the green light in shifts. Studies have found this helps extend the time available to move vehicles down the main street during peak travel hours.
Regional Transportation Commission FAST representatives say a lead/lag cycle would not work here, because the current timing at this intersection is already set to serve, at frequent intervals, a large number of vehicles turning left on Grand Canyon. This provides similar results to what a lead-lag would accomplish.
Additional changes would be disruptive to signal coordination on Flamingo between the Beltway and Hualapai Way. So, this single left turn lane stays on a special timing schedule to be able to accommodate the many vehicles making the left turn at this intersection.