Throughout the world, tramway systems have become a defining feature of first-division regional cities.
They are succeeding in getting motorists out of their cars, regenerating deprived areas and improving the environment.
In Britain, Nottingham is in the process of adding 17km to a tram network which has already produced major benefits. And here in Leeds, a world-class city in every other respect, we are planning a trolley bus system which will generate only marginal gains while causing considerable environmental damage.
Is it too late to ask politicians to set aside the political capital they have invested in this scheme and to think again?
JOHN BALE, by email