Two traffic lights on state roads in downtown South Berwick are central to a proposed $7.6 million transportation project and will significantly improve traffic flow, according to officials with the Maine Department of Transportation and Sebago Technics, consulting firm for the project. “Routes 4 and 236 are among the most heavily traveled roads in the state, ranking just behind Route 1 and 95,” Marty Rooney, project manager for MDOT’s Highway Development Program, said at a public meeting Oct. 6 at the South Berwick Community Center. In addition to traffic lights, removing traffic islands at the two intersections where the lights are proposed - Portland and Main streets, and Main Street and Route 236 - as well as an island at the intersection of Main and Academy streets, will create space for turning lanes and increase safety, said Shane Kelly, a senior transportation engineer with the consulting firm. Approximately 40 people attended the meeting or arrived earlier to view the plans at the open house prior to the meeting. MDOT will keep the meeting on its website's "open meeting" * here* until Oct. 20 so residents not in attendance can view the project presentation and offer input. Under the proposed plan outlined at the meeting, Paul Street will become a one-way street from Highland Avenue down the hill to Main Street, allowing for eight new public parking spaces on the street. That will bring to seven the net loss of downtown parking spaces due to the traffic light at Portland and …