This is actually quite topical. See this
http://www.mailonsunday.co.uk/news/arti ... -jams.html
Motorists could face £20 spot fines if they leave their engines running while stuck in traffic.
Traffic wardens will be able to issue the penalties - after a warning - in a bid to cut down on pollution.
A pilot scheme is due to be launched in January in Shoreham-by-Sea, West Sussex, and will be expanded if it proves successful. West Sussex Council said it would target areas where exhaust emissions build up unnecessarily, such as rail crossings and town centres.
Unfortunately, the threat of fines has irritated people and the AA have come out against the idea. However they did come up with this useful comment:
'For less than a minute it is not fuel efficient to switch off because you will use more fuel starting up than you will save. It only becomes fuel efficient to switch off if you are going to be stopped for a minute or more.'
Apparently, in the UK, the Highway code also has some advice:
Rule 123 of the Highway Code says: 'If the vehicle is stationary and likely to remain so for more than a couple of minutes, you should switch off the engine to reduce emissions and oil pollution.
I've had some ideas about a campaign if anyone's interested. Will start a separate thread.
Cheers
Zoe