Plesman lane is the most important entry to Leiden. A green and blue Parkway leading along many highlights: Bio Science Park, Waterboard Rijnland, Naturalis and LUMC. Our design is about a new element in this magnificent chain. A new interchange between Motorway A44, Bio Science park and Dr. Lelylaan. An integrated solution on several levels: underground infrastructure, roads, slow traffic routes and water have all found a good place and are tied together by a careful palette of architectonical and landscaping elements.