PDF of TDOT’s rendering of improvements to the intersection of Highway 46 and Walnut St./Highway 47.
No physical changes are planned for the intersection of Highway 46 with Walnut Street and Highway 47 under the Tennessee Department of Transportation’s proposed Traffic System Management plan. The current configuration of a left-turn lane, a through-traffic lane and a combination through-traffic and right-turn lane is proposed to remain for each direction. The $8.3 million plan does call for the reconstruction of the traffic signal system to allow for eight-phase operation that includes permitted and protected left-turn signals on each approach. The intersection currently does not have a protected left-turn signal for westbound traffic on Highway 47. A protected left-turn signal is an arrow that allows only turning traffic while through traffic remains stopped. A permitted left-turn signal allows left turns to be made when there is no oncoming through traffic. The plan also calls for the installation of actuated pedestrian signals and marked crosswalks across each leg. TDOT has already begun survey work for the proposal, which includes changes at more than a dozen intersections on Highway 46 from Interstate 40 to Henslee Drive.