Due to this increasing lack of space, congestion occurs more and more, and counter-measures, such as diverting traffic or finding ways of making driving more convenient, aren’t solutions to the problem, these only encourage private car use, creating an endless loop –  as car numbers continue increasing the city must keep finding more space.
The number of cars in cities cannot grow indefinitely, because, at some point, space runs out and people and their vehicles will not fit. Let’s face it, cars take up a lot of space – imagine just how much space 20 individual people traveling by car take, when compared to the same 20 people traveling on a single bus. You get the picture – the difference is significant – and the less space there is for the traffic, the slower the traffic becomes. Due to this increasing lack of space, congestion occurs more and more, and counter-measures, such as diverting traffic or finding ways of making driving more convenient, aren’t solutions to the problem, these only encourage private car use, creating an endless loop –  as car numbers continue increasing the city must keep finding more space.