[sustran] Re: Traffic and Transportation Policies and Strategies in Urban

Dr Adhiraj Joglekar adhiraj.joglekar at googlemail.com
Fri Aug 1 19:30:29 JST 2008


Sudhir,
Interesting stuff but very unreal results. I make an example of Pune - if
those figures were true, Pune has one of the best public transports in the
country - the reality is that Pune has probably one of the most useless
public transport systems?

How accurate are these figures when compared with ground realities? Look at
Pune - the reality is that public transport is pathetic and the figures
suggest that Pune has the best transport facilities - accessibility 3.15, %
trips accessible in 15 minutes 54.3. And they seem to manage this with a
supply index of 16.43? The graph below the table from where these figures
come from (page 12-13) also suggests Pune to fare better than Chennai,
Mumbai and other cities with better reputation, just based on this, I am
unable to accept the study and its overall validity.

Results are always flawed when lot of proxy outcomes are used - this study
is an example of that. Also figures without confidence intervals are useless
(most transporty journal articles report these).

Further, access and accessibility are two different things. *This study uses
the latter* as a measure not the former.

*Access*. The capacity to enter and exit a transport system. Effectively it
means how soon will one get a bus?

*Accessibility*. The measure of the capacity of a location to be reached by,
or to reach different locations. *In this study this measure is used and
defined as*- its how quick one gets to a bus stop.

Given that Pune has relatively short but disproportionately high number of
routes getting to a bus stop within 15 minutes gives a brilliant score. But
in reality the average frequency of a bus in Pune across all routes is - one
bus per 57 minutes!!

If PMT were to follow these figures, one conclusion they may draw is that
Pune needs more buses - well! We know that does not help in any way based on
the situation in Bangalore which has 5k buses but still an unsatisfactory
public transport.

As Fritz Perls put it 'the whole is more than the sum of its parts'. Without
a wider perspective on things, conclusions based on small peice meal stats
can be very misleading.

Adhiraj
On 7/28/08, sustran-discuss-request at list.jca.apc.org <
sustran-discuss-request at list.jca.apc.org> wrote:
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> Today's Topics:
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>   1. Final report on Traffic and Transportation ( India) (Sudhir)
>   2. [NewMobilityCafe] City rickshaws fight ban in India (Sudhir)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 27 Jul 2008 17:36:23 +0800
> From: Sudhir <sudhir at cai-asia.org>
> Subject: [sustran] Final report on Traffic and Transportation ( India)
> To: sustran-discuss at list.jca.apc.org
> Message-ID:
>        <ef31aa130807270236o54ad61cbybc62805cebfcf465 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Dear All,
>
> Final report on "Traffic and Transportation Policies and Strategies in
> Urban
> Areas in India" 2008 " has been recently uploaded in Internet .
>
> http://urbanindia.nic.in/moud/programme/ut/main.htm
>
> Researchers may find this resource very useful  (to know more about India-
> Urban Transportation Scenario - it has comprehensive database..)
>
> we in CAI Asia are actively looking at the report and probably we can
> discuss this during the course of next week...
>
> Sudhir Gota
> Transport Specialist
> CAI-Asia Center
> Unit 3510, 35th Floor, Robinsons-Equitable Tower,
> ADB Avenue, Ortigas Center, Pasig City
> Metro Manila, Philippines 1605
> Tel: +63-2-395-2843
> Fax: +63-2-395-2846
> http://www.cleanairnet.org/caiasia
> Skype : sudhirgota
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 27 Jul 2008 10:21:59 +0800
> From: "Sudhir" <sudhir at cai-asia.org>
> Subject: [sustran] [NewMobilityCafe] City rickshaws fight ban in India
> To: <sustran-discuss at list.jca.apc.org>,
>        <NewMobilityCafe at yahoogroups.com>
> Message-ID:
>        <ef31aa130807261921t669d2a4cm98faa84188e5c92c at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Dear All,
>
> Well over the past week we have seen some interesting mails about cycling
> in
> sustran-new mobility ...
>
> this news may affect sustran members
>
> http://in.news.yahoo.com/32/20080727/1053/tnl-city-rickshaws-fight-ban.html
>
> Push Cycle Rickshaws out of streets and then cycles and then pedestrians
> just because they cause congestion.. ..?
>
> its true "Common sense ain't common"
>
> regards
> Sudhir Gota
> Transport Specialist
> CAI-Asia Center
> Unit 3510, 35th Floor, Robinsons-Equitable Tower,
> ADB Avenue, Ortigas Center, Pasig City
> Metro Manila, Philippines 1605
> Tel: +63-2-395-2843
> Fax: +63-2-395-2846
> http://www.cleanairnet.org/caiasia
> Skype : sudhirgota
>
>
> ------------------------------
>
> ================================================================
> SUSTRAN-DISCUSS is a forum devoted to discussion of people-centred,
> equitable and sustainable transport with a focus on developing countries
> (the 'Global South').
>
> End of Sustran-discuss Digest, Vol 59, Issue 17
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