小题1:The reduced/lowered cost of a new car and better road conditions
小题2:They should park outside the town, and take the bus to the centre.
小题3:Their incomes dropped because fewer people drove past.
小题4:encouraging people to use public transport more
encouraging people to use their cars less
relieving the problem( of overcrowding)
小题5:Because public transport is not reliable/satisfactory.