On Mon, Dec 24, 2012 at 11:58 AM, Greg gregsutherland@...> wrote:
> Most European tram/Light Rail systems use the Proof of Payment (POP) system, backed up by a significant enforcement system.

>

> Basically enforcement is based on significant and enforced fines for fare evasion. If the rate of inspection is set at one inspection per seventy five trips (say) then the fine will be 100 times the fare so it is cheaper NOT to evade.


Back in 2010 when the Metlink (Melbourne) Revenue Protection Plan was
leaked and published, I went through it. The figure on tram ticket
inspections was 2.39% of trips, or about 1 in 42.

http://www.danielbowen.com/2010/03/16/revenue-protection/

Daniel