[sustran] Re: ground transport impacts

[Sujit Patwardhan]

3 April 2006


David,
For a technically impaired person like me (even after looking through the
spreadsheet) it is difficult to understand how a fossil fuel guzzling and
polluting (during manufacture and productive life) car can offer a more
favourable environmental impact than walking and cycling.

If you travel by bike, and plan on traveling more than 32,253 miles in your
life, then it pays to invest in a car for favorable environmental impact
reasons alone - even if you place no value on your time.

Sujit

Sujit Patwardhan
Parisar/PTTF
Pune
India





On 4/4/06, Daryl Oster <et3 at et3.com> wrote:
>
>
>
> This attached spreadsheet illustrates why cars are gaining in market share
> in developing countries, they have far greater VALUE than muscle powered
> transport, and contribute LESS environmental impact.
>
> Even if you value your time at zero; if you walk and plan on traveling
> more
> than 317 miles in your life (but less than 32,253 miles) it pays to invest
> in a bike for favorable environmental impact reasons alone.
>
> If you walk, and plan on traveling more than 8755 miles in your life, then
> it pays to invest in a car for favorable environmental impact reasons
> alone
> - even if you place no value on your time.
>
> If you travel by bike, and plan on traveling more than 32,253 miles in
> your
> life, then it pays to invest in a car for favorable environmental impact
> reasons alone - even if you place no value on your time.
>
> If you place a $15/hour value on your time, then the bike takes only 91
> miles to justify the impact of production vs walking, and the car only
> 2,361miles.  The car compaired with a bike is justified for those who
> value
> their time more than $15/hour if they plan on more than 7275 miles of
> travel.
>
> NOTE -- this analysis ignores the added value obtained if the car is used
> to
> transport it's full capacity of 5 persons -- the impact breakeven point vs
> walking or biking is MUCH faster if the car is used to it's full capacity.
>
> I hope that some of the experts on this list can provide numbers so I may
> include air, bus, and train on this chart, and see the comparisons to
> cars,
> bikes, walking, and ETT.
>
>
>
> Daryl Oster
> (c) 2006 all rights reserved. ETT, et3, MoPod, "space travel on earth"
> e-tube, e-tubes,  and the logos thereof are trademarks and or service
> marks
> of et3.com Inc. For licensing information contact:POB 1423, Crystal River
> FL 34423-1423 (352)257-1310, et3 at et3.com , www.et3.com
>
>
>
>
>
> ================================================================
> SUSTRAN-DISCUSS is a forum devoted to discussion of people-centred,
> equitable and sustainable transport with a focus on developing countries
> (the 'Global South'). Because of the history of the list, the main focus is
> on urban transport policy in Asia.
>
>
>
>


--
------------------------------------------------------
Sujit Patwardhan
sujit at vsnl.com
sujitjp at gmail.com

"Yamuna",
ICS Colony,
Ganeshkhind Road,
Pune 411 007
India
Tel: 25537955
-----------------------------------------------------
Hon. Secretary:
Parisar
www.parisar.org
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Founder Member:
PTTF
(Pune Traffic & Transportation Forum)
www.pttf.net
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