noun
BAD : Apart from housing, transportation is also a problem.
GOOD : Apart from housing, transport is also a problem.
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In British English transportation usually refers to the process or business of moving things, especially goods, from one place to another: 'Information regarding the transportation and storage of nuclear waste is difficult to obtain.'
The word for the system that carries passengers (or goods) from one place to another is transport : 'I spent most of my money on hotels, food and transport.' 'Trains are still my favourite form of transport.'
Note that in American English transportation is used for this meaning.