Arup and Obermeyer GmbH & Co. Kg have secured a masterplanning contract from Autobahn GmbH to redesign the A3/A1 motorway junction in Leverkusen. As one of Germany's oldest and busiest interchanges, the site will undergo extensive modernisation to ease congestion. The joint venture project features key civil engineering works, including a new one-kilometre bridge near the BayArena, while maintaining continuous traffic flow during construction.