[sustran] Re: Delhi Metro + Post-Oil BRT + Biogas BRT

[Lee Schipper]

In most Latin American countries, buses are sold from main cities to
smaller ones after around 5-6 years.

>>> edelman at greenidea.info 2/7/2006 5:37:33 PM >>>
From: Lee Schipper:

So while your earlier
> comments are certainly valid (lifetime of vehicles, etc) it comes
donw
> ot how ot value the land, the costs, the way the system is paid for
(and
> who pays)  and other
> ecnomic and social factors.

Todd: What I meant with "lifetime of vehicle" comment - and also query
about tyre particles - was simply  to make sure that buses last as long
as possible, and how to do that... and the same with tyres.

The envelope should continue to be pushed - it seems to be happening
with the latest engines in regards to using gas, exhaust recirculation,
etc. 

---

Regarding post-peak oil BRT, the thinking for the onboard fuel source
is mainly hydrogen, right? How confident is everyone in this? For a new
BRT, are owners thinking they will go through two 15-year cycles of
Diesel or gas buses before they make the switch? Or three? Are there
energy-use advantages to getting electricity from an overhead caternary
vs. some type of onboard hydrogen system? Are there any trolley-bus
(with caternary) type BRT systems? Are there any BRT systems operating
on biogas? (I know that Sweden has about 800 normal city buses powered
by biogas, plus one regional train). Are there any CNG BRTs? And if so
are they worried about future availability of CNG?

- T

------------------------------------------------------

Todd Edelman
International Coordinator
On the Train Towards the Future!

Green Idea Factory
Laubova 5
CZ-13000 Praha 3

++420 605 915 970

edelman at greenidea.info 
www.worldcarfree.net/onthetrain 

Green Idea Factory,
a member of World Carfree Network




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