I think, if one day a new world war starts, it will be due to park problem.
Everyday in Istanbul, the 700 new cars hit the roads.
The transportation is also a big problem in the cities, of course in Istanbul. For the short distances the bikes may be a solution.
The mass transport is not well designed and very crowded, also is being more expensive day by day.
I do not know where the pedestrians can walk on but if they wish, they can walk on the clouds like me believing in the bicycle transportation in the city.