The proposed $8.3 million improvement plan for Highway 46 unveiled Monday includes changes at more than a dozen intersections from Interstate 40 to Henslee Drive. Changes include new traffic signals, additional turning lanes and other improvements. At the intersection of Highway 46 and Mathis Drive with College Street, known for years as “Malfunction Junction,” the Tennessee Department of Transportation plan proposes to widen the east leg of College Street between Walgreens and Rite Aid to add a new lane. Traffic approaching the intersection from the east will have two left-turn lanes to go south on Highway 46. Currently there is one left-turn lane and one lane that is either for a left turn or through traffic. The new intersection would have one lane for westbound through traffic only and the lane closest to the Walgreens side would be either for through traffic or a right turn to go north on Mathis Drive. The plan also proposes to extend the two westbound lanes on College Street all the way in front of Dickson Middle School to end with one through lane and one right-turn lane at Academy Street. The plan will require the widening of College Street from McLemore Street to Academy Street. Traffic signal operations at the intersection will be modified to include permitted and protected left-turn signals and actuated pedestrian signals are recommended with marked crosswalks. The intersection construction would remain unchanged for eastbound, southbound and northbound traffic. TDOT has already begun survey work to prepare for the design phase of the improvement project. The city of Dickson is being asked to contribute $2.8 million while the state is projecting to spend just under $5.5 million on the project.