Bletchleyite
Veteran Member
I do know for a fact that the introduction of barriers at a number of what were fare evasion hotspots has had quite a significant impact.
Barriers also have an impact on personal safety because they reduce the number of non-payers getting on trains and often non-payers are those who also engage in antisocial behaviour. This is also amply demonstrated by the typically better condition of station toilets found inside barriers than those (where there is no fee) outside.