Urban planners and designers in Hamburg, Germany are working on a plan which aims to eliminate the need for cars in the city over the next 20 years. The project will help to turn the city into a one-of-a-kind, integrated system that could well be adopted by other major cities around the world.

While cars have become a serious cause of environmental, social and aesthetic problems in modern cities, Hamburg’s Green Network Plan will create pedestrian and bike lanes to connect the city’s existing green areas, providing safe, car-free commuter routes. The plan will be developed over the next 15 to 20 years…