life. New urbanism is an American urban design movement that arose in the early 1980s. Its goal has been to reform all aspects of real estate development and urban planning, from urban retrofits to suburban infill. New urbanist neighborhoods are designed to contain a diverse range of housing and jobs, and to be walkable. Other, more auto-oriented cities are also making incremental changes to provide transportation alternatives through Complete streets improvements. World Squares for all is a scheme to remove much of the traffic from major squares in London, including Trafalgar Square and Parliament Square. Car-free cities are, as the name implies, entire cities (or at least the inner parts thereof) which have been made entirely car-free. Car-free zones are areas of a city or town where the use of cars is prohibited or greatly restricted. To make the car-free zones/cities, (movable and/or stationary) traffic bollards and other barriers are often used to deny car access. Living streets and complete streets prioritize the needs of users of the street as a whole over those of car drivers. They are designed to be shared by pedestrians, playing children, bicyclists, and low-speed motor vehicles. Distribution centers allow easy restocking of supermarkets, outlet stores, restaurants, and more in city centers. They rely on tractor units to unload their cargo in the suburban distribution center. The products are then placed in a small truck (sometimes electrically powered), cargo bike, or other vehicle to bridge the last mile to the destination in the city center. Besides offering advantages to the population (increased safety due to truck drivers having less blind spots, reduced noise pollution and traffic, reduced tailpipe emissions and reduced air pollution, and more), it also offers financial advantage for the companies, as tractor units require a lot of time to bridge this last mile (they lack agility and consume much fuel in congested streets). The method above however still doesn't reduce car use inside non-car-free city centers (customers often use cars to fetch their groceries or appliances from city stores, since they have so much storage space). This problem is solved by means of online food ordering systems, which allow customers to order online, and then have it delivered to their doorstep by the supermarket or store itself, through bicycle couriers (using cargo bikes), electric delivery robots and delivery vans. Delivery vans allow to take along more cargo and deliver to several customers