(课文理解) 3. There are exceptions. More people are taking public transport in Sydney and Tokyo. And some transport agencies can point to specific reasons for their emptying buses and trains. London and Paris have suffered terrorist attacks. New York’s subway is creaking — a consequence of prolonged underinvestment in repairs. Elsewhere, bad weather or roadworks are said to deter people from taking buses.● Question:In the third paragraph, the public transport in London and Paris has been negatively affected because of ______.