Re: [datameet] Virtual chat sometime?

[amish sarpotdar]

Will be happy to attend and contribute. My work is in spatial data
infrastructure


Dr Amish Sarpotdar
University of Manchester

On Tue, 7 Dec 2021 at 16:34, Cara Foss Arellano 
wrote:

> I'd love to listen in on this.
>
> On Mon, Dec 6, 2021 at 9:22 AM Meera K  wrote:
>
>> Anybody else has any other topic to talk about?  5-7 min each then Q
>> I have checked with a couple of other friends as well who can talk on
>> geospatial data.
>>
>> We can target next week sometime.
>>
>> Regards, Meera
>>
>> On Tuesday, November 30, 2021 at 12:52:39 PM UTC+5:30
>> rigved1...@gmail.com wrote:
>>
>>> Yes, a chat up would be nice. The open data efforts have somehow gone
>>> down since the pandemic in all areas except health. Would be good to get
>>> the ball rolling again.
>>>
>>> On Saturday, November 27, 2021 at 3:42:05 PM UTC+5:30 a.upp...@gmail.com
>>> wrote:
>>>
>>>> Hey Meera,
>>>>
>>>> I am up for it. I along with one of my colleagues look at IUDX from the
>>>> Smart Cities Mission. We can loop in the team from IISc too.
>>>>
>>>> Thanks
>>>> - Abhishek Upperwal
>>>> Data Scientist, Data Analytics and Management Unit
>>>> Ministry of Housing and Urban Affairs
>>>> Alumnus, Indian Institute of Science, Bangalore
>>>>
>>>> On Sat, Nov 27, 2021 at 3:11 PM Meera K  wrote:
>>>>
>>>>> Folks,
>>>>> I'd like to get better updated on current developments in the open
>>>>> data space in India. Also want to hear about how stuff like IUDX, Data
>>>>> stack etc are doing...
>>>>>
>>>>> I am sure there are enough experts here. Perhaps some of you may have
>>>>> a specific topic you can talk about, do share that.
>>>>>
>>>>> Maybe we could do a Twitter Spaces chat?
>>>>>
>>>>> Regards,  Meera
>>>>> *Citizen Matters <http://www.citizenmatters.in/> | Open City
>>>>> <http://opencity.in/> | Oorvani Foundation <http://www.oorvani.org/>*
>>>>>
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>>>>> .
>>>>>
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>
>
> --
> Cara Foss Arellano
> cara.arell...@berkeley.edu
> Interdisciplinary Studies
> *Fair Validation for grassroots NGOs *
>
> Mobile/WhatsApp: +01(408)393-5646
> i...@daanmatch.com
>
>
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>

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[datameet] MCGM Pre-2012 election map

[Amish Sarpotdar]

Hi everyone, 

Does anyone have the shapefile for Mumbai Corporation's pre-2012 local 
election boundaries? 



Thanks. 



Best, 
Amish

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Re: [datameet] Identifying urban agglomeration boundaries

[amish sarpotdar]

Hi Aditya and others,

I have often thought of this since my PhD deals with some of the boundary
and territory issues. Some pointers from my own experience:

The GHSL is useful but will be hard to overlay with official boundaries and
is a plumbing fix more than a sustainable solution for figuring out UA's as
the resolution is quite flimsy at lower levels and for smaller UAs.

I think the solution then is to have a tiered approach using Census Town
Codes  that requires a bit of coding and lots of time and cleansing:

1. Gather all the village or town vector boundaries which I think are
already available
2. Check for OG vectors and missing territories.
3. Then Add and combine the vector boundaries for each UA corresponding to
the list in the Census according to town code numbers.

There are a lot of limitations with this approach and it is hard to express
in one single mail. However, the benefits of following the Census town code
approach are massive:


1. Once you have the UA vector file as compiled through census, overlaying
socio-economic and other indicators is a child's play as you just need to
use Census Town codes
2. Time series is possible if done for 2001 and 2021. Note: Between 2001
and 2021 the boundaries have changed but not as massively as between 1991
and 2001.


There are other approaches such as having a tiered composite region
approach, but those are more for time-series of data.

It is useful to acknowledge this is a long drawn process, but I would be
happy to help and volunteer with any data/code/inputs when needed.


Thanks.


Kind Regards,
Amish

On Wed, Oct 14, 2020 at 3:17 PM Aditya Medury  wrote:

> Hi,
>
> I am trying make sense of how to translate the definitions of urban
> agglomerations/million-plus cities in the 2011 census. Census defines urban
> agglomeration as follows:
>
> *An urban agglomeration is a continuous urban spread constituting a town
> and its adjoining outgrowths (OGs), or two or more physically contiguous
> towns together with or without outgrowths of such towns. An Urban
> Agglomeration must consist of at least a statutory town and its total
> population (i.e. all the constituents put together) should not be less than
> 20,000 as per the 2001 Census. In varying local conditions, there were
> similar other combinations which have been treated as urban agglomerations
> satisfying the basic condition of contiguity. Examples: Greater Mumbai UA,
> Delhi UA, etc.*
> *Source: *
> https://censusindia.gov.in/2011-prov-results/paper2/data_files/India2/1.%20Data%20Highlight.pdf
>
> Since they can be a combination of multiple towns/cities, outgrowths,
> municipal corporations, identifying their sociodemographic and built
> environment characteristics from other databases becomes a little
> challenging. For instance, the breakdown of all UAs with more than 1 lakh
> population is specified here:
>
> https://censusindia.gov.in/2011-prov-results/paper2/data_files/India2/Table_4_PR_UAs_1Lakh_and_Above_Appendix.pdf
>
> I can think of a few different ways in which I may be able to approximate
> some boundaries associated with these UAs:
>
>- I could use the ADM3 shapefiles of sub-districts (
>https://earthworks.stanford.edu/catalog/stanford-rj389fh4679) and
>picking locations based on visual inspections/overlap of city points. I
>understand that municipal boundaries may or may not always match the
>administrative divisions (not very clear on this)
>- I could also base it off of pincode layers (
>https://github.com/justinelliotmeyers/INDIA_PINCODES) which might be
>more fine-grained if I need additional flexibility in selecting small
>regions at the periphery.
>- I could go the population grid route and do some clustering to find
>regions that might approximate the UA populations provided in the 2011
>census for some of the bigger cities. But this would get really crude with
>no unique boundary solutions.
>
> Wondering if people have any thoughts on this.
>
> Thanks!
>
> Aditya
>
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> .
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Re: [datameet] Mumbai Master/ Development Plan

[amish sarpotdar]

Thanks Akshit. I wasn't aware of the new updates to the Draft Development
Plan. This is much appreciated



Warm regards
Amish

On Thu, Jul 2, 2020 at 9:49 AM Akshit Shah  wrote:

> Hi Ravi,
>
> Kindly go to MCGM website at <
> https://portal.mcgm.gov.in/irj/portal/anonymous/qlcedpdocs>, within this
> go to "Sanctioned DP2034 >> DP Plan >> Development Plan 2034 (Sanctioned
> part) SM Sheet_8th May 2018 >> City/Eastern Suburbs/Western Suburbs - you
> will find development plan in PDF format. The '0_Index Sheet' is given so
> that one gets idea which part of city they are referring to.
>
> otherwise, you may go through an online portal <
> https://dpremarks.mcgm.gov.in/dp2034/>  - just for reference, you can not
> download from here.
>
> Note: the Draft DP 2034 document shared by Amish has been scrapped long
> ago, so please don't refer that. the 'Revised Draft Development Plan 2034'
> is the sanctioned one. this also you will find in the first link I have
> shared.
>
>
> On Thu, Jul 2, 2020 at 1:13 AM amish sarpotdar  wrote:
>
>>  mumbai-dp.pdf
>> <https://drive.google.com/file/d/1iZLBhUAJ5hJWBe3pL-NDbGSda1-mQyAN/view?usp=drive_web>
>> Hi Ravi,
>>
>>
>> PFA
>>
>>
>> Thanks and Regards,
>>
>> Amish
>>
>>
>> On Wed, Jul 1, 2020 at 7:12 PM rvc  wrote:
>>
>>> Hi, is there any portal where i can get master plan or development plan
>>> for Mumbai?
>>>
>>>
>>> Thanks
>>> Ravi
>>>
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>>>
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>>
>
>
> --
> Warm Regards,
>
> *Ar. Akshit Shah*
> Associate - Research Service, Cushman & Wakefield India
>
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Re: [datameet] Mumbai Master/ Development Plan

[amish sarpotdar]

 mumbai-dp.pdf

Hi Ravi,


PFA


Thanks and Regards,

Amish


On Wed, Jul 1, 2020 at 7:12 PM rvc  wrote:

> Hi, is there any portal where i can get master plan or development plan
> for Mumbai?
>
>
> Thanks
> Ravi
>
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> 
> .
>

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