For reference, we've just had "Speed Day" where the Garda goes out and mans the speed cameras. There are generally a set of known locations where this happens,

For reference, we've just had "Speed Day" where the Garda goes out and mans the speed cameras. There are generally a set of known locations where this happens, and motorists being motorists, there's a bunch of headlight flashing just out of view. The Garda then give statistics of 0.3% are speeding, but look how fast some people went (typically 160 in an 80 or similar). The RSA, when they did free flow analysis, found more than 50% speeding, and higher percentages in urban areas than rural motorway. Meanwhile, small roads have slowly had their speed limits upgraded without corresponding infrastructure changes, such that 2 lane N roads over bogs with no shoulders can have 100kph (up from 80), in places where you can see the scrapes from frames hitting the pavement. The boundaries of towns have moved in, so that places that used to be 50 are now 60.