This is one likely to generate some debate - and polarise opinions...
Laudable in several aspects, but workable? It doesn't look like an easy one to apply so let's see the small print, which may still be in production...
Electric cars could be given priority at traffic lights and exempted from one-way systems, under new proposals. The government's planned clean air zones are intended to encourage drivers to choose less-polluting electric cars. Proposed for five UK cities by 2020, the clean air zones will also introduce restrictions on older, polluting commercial vehicles.
