Transport Secretary Heidi Alexander said: “It is so frustrating when the actions of an inconsiderate few spoil journeys for the rest of us, whether that is vaping, littering or blasting music out loud.”Even small changes in behaviour can make a massive difference to people’s experience on public transport.”Antisocial behaviour on public transport has become an increasingly prominent issue, with the Liberal Democrats calling for action against “headphone dodgers” last year.Ben Plowden, chief executive of the Campaign for Better Transport, said antisocial behaviour could be “a real deterrent” to using public transport.