For the Downstream Casino Authority, and in cooperation with the Missouri Department of Transportation, TSE offered a sustainable traffic solution by designing a new roundabout intersection. Roundabouts provide safer traffic flow, traffic calming, reduced environmental impact by fewer vehicle emissions, and less maintenance costs. The new roundabout moves traffic from Interstate 44, Highway 166 and Downstream Boulevard efficiently and safely.

The City of Duquesne, MO hired TSE to provide a solution for higher traffic volumes and long queues at the signalized intersection of 20th Street and Duquesne Road. TSE designed a roundabout intersection which continually moves traffic in a more safe and efficient manner. The addition of East Middle School, 1/2 mile east of the intersection will increase traffic volumes during school in and out hours. The newly constructed roundabout will accommodate this change ensuring safer and quicker traffic flow.

For the Downstream Casino Authority, and in cooperation with MoDOT, TSE designed a signalized intersection at Highway 43 and Douglas Fir Road, just west of Joplin, MO. This intersection is anticipated to have increased traffic flow from Highway 43 onto Douglas Fir heading west to the Eagle Creek Golf Club. The new design includes dedicated turn lanes and increased capacity for westbound traffic.