The document discusses problems at the Port of Rotterdam, the largest port in Europe. Some of the key problems identified include: (1) the complex barge rotation planning and quay scheduling problem due to the large number of terminals and daily barge visits; (2) lack of reliable communication between barge operators and terminals; and (3) increasing environmental pressures on ports from governments and organizations. Other problems mentioned are canal blockages limiting transport, lack of space to accommodate growing world trade volumes, and pressures to adopt greener practices across supply chains. The conclusion states that while Rotterdam is one of the world's largest and busiest ports, the main challenge lies in urgently addressing problems through creative solutions rather than just infrastructure.