Encouraging a shift from four wheels to two has many benefits, and not just because it is an inexpensive means of reducing carbon emissions and increasing general fitness levels. A large network of designated cycle lanes and parking areas, dedicated traffic lights, stations dispensing free air, and other accoutrements is a significant boost to any city's amenity, livability and, most importantly, its long-term sustainability.

So why do so many ACT motorists complain (''haven't we made enough sacrifices already?'') whenever initiatives to improve the popularity of riding are canvassed? This is not a judgment based solely on anecdotal evidence, though there is plenty of evidence of that in forums such as letters to the editor.

A recent survey commissioned by an insurance company into general attitudes to bike-riding in traffic found Canberrans were more critical of the behaviour of cyclists, and less supportive of the notion that they receive better facilities, than people in the other states and territories. Furthermore, the percentage of ACT drivers who eschew bicycle travel to work, TAFE or university because ''it takes too long'' was found to be significantly higher than the national average.

If Canberra's drivers have a sense of entitlement, even ownership, about the territory's transport corridors, it's easy to see why. Canberra's road network was planned and laid down in a era of cheap and plentiful fuel, with little thought given to the possibility that anyone other than motorists should or would use them. It is extensive, well designed, and offers relatively quick commuting times. Public transport exists but is little used because it is slower and less convenient than private motor cars. Population growth has ensured our roads are more congested than they used to be, but Canberra remains resolutely in love with the car.

For more, pick up a copy of today's Canberra Times