Senior officers from the British Transport Police say that people feel intimidated by "low level bad behaviour" and that it also leads to more serious disorder and to clashes when troublemakers are confronted.
Extra officers will patrol London transport to help reduce fear and cut crime.
Apparently the fines will vary according to the offence, but can be as much as £80, and they will double if not paid within 21 days.
However, this doesn't mean that all people with their feet on seats or loudly playing iPods and the like will be fined. The Evening Standard wrote: "Some passengers, particularly those judged to be acting "thoughtlessly" rather than deliberately offensively, will be initially be given a verbal warning and told to improve their conduct.
The drive against antisocial behaviour forms part of wider attempt by Transport for London to improve passenger safety. To achieve this, it has drawn up a new Community Safety Plan which lists the reduction of anti-social behaviour and the fear of crime among its key targets for the coming year."
Unamed commuter groups have welcomed the move and they're also looking for a beer ban on London's transport.