Within the Sustainable Mobility impact area, we are employing our design strength to expand and improve mobility and infrastructure in the most sustainable way possible. This means prioritising health aspects, carbon emissions, and living environment quality as much as accessibility and affordability. On the widening of the Yangtze Canal in the Port of Rotterdam, intensive collaboration is being carried out with the client to develop innovative, low-carbon materials solutions. On the assignment to renovate five traffic tunnels in Zuid-Holland, meanwhile, urgency is required. The tunnels are at the end of their lifespans but remain important for accessibility in the region. Accordingly, they are being tackled simultaneously, with knowledge sharing essential to success.