The fuel emission by cars all over the world has resulted in massive air pollution along with the other evils of climate change and global warming. To minimize the effect the concept of car free city has been introduced. A car free city is defined as a population centre, which is heavily dependent on public transport, cycling or walking for transit in the urban regions. Many cities have various districts, which are designated as car free zones. A car free city reduces the amount of air and noise pollution along with traffic congestion and increases road safety.
Urban planners have been considering this concept to reduce the hazards created by cars. One has to design the streets in such a way that it discourages car traffic movement by means of strategic closures and opening them to squares exclusive to only pedestrians or cyclists. Many cities though not car free have implemented various methodologies to encourage pedestrian movement like used of pedestrian or cycling roads above or below the regular road level.
Some of the ancient cities by virtue of narrow alleys do not allow cars at all in some of the areas with the city. The whole downtown area of the Belgian city of Ghent is free of personal cars. Strøget, Copenhagen has a huge downtown shopping area free of cars. Speaking of car free cities, we have the best example of Venice, which perfectly demonstrates the ways a modern city can run without use of cars or any vehicle.