"Two fares - 1euro and 2 euro, the latter applying once you cross a defined boundry. Oh, and some form of integrated ticketing would help ............ but that just seems to be a pipedreaam!!!"

Two Asian systems are quite efficient at avoiding fare evasion.

In Hong Kong you pay a cash fare into a farebox. The fare payable depends on where en-route you board the bus, not on the distance you travel, is posted by the farebox and no change or credit is given. Any excess fare is retained by the bus company.

I believe that in Japan, as you get on you pull a ticket from a machine which shows where you boarded. You then pay the driver when you get off. Not much scope for evasion in that system!

But if either of these was suggested in Ireland, the official response would be 'ah, sure, 'twould never work here'!!!