[sustran] Re: Public vs Private transport- space efficiency

[Sujit Patwardhan]

13 September 2006


Thanks Carlos,
Very nice and compact.
--
Sujit





On 9/13/06, Carlos F. Pardo SUTP <carlos.pardo at sutp.org> wrote:
>
>  Dear all,
>
>
>
> As part of the training course on public awareness and behavior change,
> I've developed a video to show space efficiency of cars vs public transport.
> You can see the video at: http://youtube.com/watch?v=guodaBkDPP0 . After
> some discussion with Eric Britton (relevant excerpts below), it would be
> useful to hear anybody else's comments. Of course, bear in mind that I did
> this for policymakers and social scientists (and others) who will promote
> sustainable transport with simple and explanatory tools.
>
>
>
> Any feedback is most welcome. Best regards,
>
>
>
> *Carlos F. Pardo*
> *Coordinador de Proyecto*
> GTZ - Proyecto de Transporte Sostenible (SUTP, SUTP-LAC)
> Cl 125bis # 41-28 of 404
> Bogotá D.C., Colombia
> *Tel:*  +57 (1) 215 7812
>
> *Fax:* +57 (1) 236 2309
> *Mobile*: +57 (3) 15 296 0662
> *e-mail: *carlos.pardo at sutp.org
> *Página:* www.sutp.org
>   ------------------------------
>
> *De:* Eric Britton [mailto:eric.britton at ecoplan.org]
> *Para:* 'Carlos F. Pardo SUTP'
> *Asunto:* So it's TEN times more space-efficient???
>
>
>
> I'm not quite sure that is quite the whole story Carlos.  Might we explore
> the bigger picture together here for a moment?
>
>
>
> 1.      The clip lasts for 40 seconds
> *###yes.*
>
>  2.      It shows five lanes of urban highway in Bogotá with car traffic
> at close to capacity, which means average speeds I guess on the order 50/60
> kph?
> *#### no, it's actually 10-20 km/h.*
>
>  3.      And then the one dedicated lane with a single TM artic, moving
> along at a clip a good deal faster than the cars.
> *### yes.*
>
> *4.**      *You suggest that the bus is full??
> *#### I know that bus is full.*
>
> *** Just to be sure: What you are saying is that all the TM busses are
> pretty much full in the same rush hours that the car lanes are full*
>
>  5.      It is clear that whereas there is zero room for more cars in the
> five lanes they occupy, the reserved lane could accommodate more vehicles.
> *### yes, BUT that would mean oversupply, and less people per bus (I
> assume you mean bus by "vehicle").*
> *** Not all that sure Carlos. The objective of our NewMob policy is high
> quality high comfort transport for all. So we have a couple of objectives
> *.. .
>
> o              *The first is to get through a carrot/stick policy drivers
> out of all those cars and into other space-efficient transport.*
>
> o              *TM is a great example of this last but far from the only
> one*
>
> o              *Remember that we want to come as close to 'car-like
> mobility' (refers to direct access, waiting times, comfort, etc.) as we can.
> *
>
> o              *This suggests that we need not only TM but a lot of other
> good (and flexible) stuff as well (we call it xTransit but call it as you
> will).*
>
> o              *We also need to bear in mind that when you cram too many
> people on board a bus, this is not necessarily a sign of total success.*
>
>
>
> In fact, what I would love to have – and I am sure that some one must have
> this in hand – would be a kind of 'thermometer of space efficiency', which
> will give us a meter stick for looking at all this stuff and somehow getting
> it into proportion.
>
> More than that, I would; then like to see if we can somehow establish this
> as a new mobility measuring stick which becomes a tool of the trade.
>
> * **#### right, or it could be just a "rule" that you would have, e.g.
> "count the number of cars that pass by during a given time, and then divide
> by x to see how many buses are needed. If it is more than one lane, divide
> again by the amount of lanes…"*
>
>
>
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>
>


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

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