[sustran] Stop engine at the intersections

[International Bicycle Fund]

The answer may be a bit more complex than this:

1) If you are driving a car and coming from a cold stop,
driving a few blocks, turning off the engine (during which
it continues to give off some fumes--though different) and
then restart the stilled cold engine, and continue to do
this through town you will probably have little impact on
reducing air pollution (though it might reduce some noise).

2) At the other extreme if you have been driving for a while
( the engine is hot and burning efficiently) and you come to
a bridge or ferry landing where you will have to wait a bit,
stopping the engine will reduce pollution.  When you
restart, the engine will still be warm and not pollute at
the same level as a cold stop.

But these two there are a continuum of scenarios.  Depending
upon the specifics of the trip the environment may benefit
from stopping the engine.

Regards,
David Mozer

~ INTERNATIONAL BICYCLE FUND ~
Promoting sustainable transport and tourism worldwide
Email: ibike at ibike.org   Internet: www.ibike.org

-----Original Message-----
From: ITDP <mobility at igc.apc.org>
To: sustran-discuss at jca.ax.apc.org
<sustran-discuss at jca.ax.apc.org>
Date: Tuesday, September 01, 1998 6:55 AM
Subject: Re: [sustran] Stop engine at the intersections


>This idea of stopping engines briefly to reduce air
pollution is not a
>good idea.  While I don't have the figures, I'm pretty sure
the
>emissions generated by stopping and starting the engine
again are
>considerably greater than the emissions generated by hot
idling.
>
>Regards,
>Walter Hook
>
>Taiichi INOUE wrote:
>>
>> Dear,
>>
>> In Japan the campaign called 'Idling Stop' has become
popular. That is , at
>> the intersections the car drivers are asked to stop their
engines to keep
>> the air clean.
>> I'd like to know which countries introduce this measure
and in these
>> countries what it is called.
>> Please let me know.
>>
>> Drink globally, Eat locally.
>>
>>  Consultant
>>  Taiichi Inoue
>>   Transport & Logistics System Strategy.
>>   Nomura Research Institute,Ltd.
>>   2-2-1,Ootemachi,Chiyoda-ku,
>>   Tokyo 100,JAPAN
>>   tel +81-3-5203-0806 fax +81-3-5203-0810
>>   Website  http://www.nri.co.jp/
>
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