Probably the most important step towards improved, friendlier and safer urban life is learning how to integrate a wide range of different types of transport into such a densely populated area. Cutting down on private cars is key to reducing congestion and pollution but they need to be replaced by something - walking and cycling is the most eco-friendly compensation, but it has to be supplemented by buses for mass transportation. Trucks and lorries for delivery and other services also cannot excluded. But this represents the main traffic conflict for urban planners - city roads are being dominated by both larger vehicles and the most vulnerable road users – pedestrians and cyclists.