> While this may seem nonsensical and a waste of money to your average motorist, the Dresden authorities can explain in exact detail why the light never changes

> While this may seem nonsensical and a waste of money to your average motorist, the Dresden authorities can explain in exact detail why the light never changes colour. And their explanation might show another habitat that dies hard - a love of convoluted, self-defeating regulation. That seems unnecessarily critical. Clear and consistent communication is pretty important when you're talking about traffic, and the cost is surely a drop in the bucket compared to the city's overall budget.