This thesis provides insight into how the design approach, also known as ‘Design Thinking’ could be implemented in infrastructure planning processes. This is done with the objective to prevent premature convergence, which means, too early choosing for a solution by which other valuable alternatives are ‘killed off.’ By preventing premature convergence, the level of integration of infrastructure solutions will improve. The solution space could be enlarged by minimizing constraints, including more actors/stakeholders in the planning proces and providing freedom in the policy planning process.