Data from OSM 

https://taginfo.openstreetmap.in/tags/amenity=police#map


On Saturday, 31 August 2019 09:33:37 UTC+5:30, Nikhil VJ wrote:
>
> Hi Shruti,
>
> Sharing possible ways that I know of to find and build the data you're 
> looking for from the generally available map platforms. Sentences in 
> brackets give more background info for people new to the subject. Note: I 
> am adding an important caveat at the bottom.
>
>
> *OpenStreetMap or OSM* (the all-open commons alternative to google maps 
> that you'll find members of this community earnestly pitching for) way:
> Relevant tag/key-value pair : "amenity=police" . Link: 
> https://wiki.openstreetmap.org/wiki/Tag:amenity%3Dpolice 
> Query on Overpass Turbo (the "backend" of Openstreetmap and the quickest 
> way to search download specific data): https://overpass-turbo.eu/s/LX6
>
>
> *Google Places API* (the more complicated "backend" of Google maps which 
> while having more coverage for now, is way more restricted both technically 
> and legally and the reason why you'll find members of this community 
> earnestly pitching for moving to OSM / enriching OSM instead )
> ... lists "police" as one of the POI types than can be searched and 
> retrieved programmatically.
> Link: https://developers.google.com/places/supported_types
>
> Note: Since the term "poiice" is generic, the direct search may also throw 
> up places that aren't police stations, eg: police training institutes. It's 
> safe to assume any dataset you get will be messy and will need considerable 
> manual work on it to get to an acceptable stage. 
>
>
> *Caveat:* We cannot expect full coverage or any proper answers about 
> extent of coverage (The usual answer to "does this cover everything?" is 
> "Nobody knows!") because that requires some official institution putting 
> the data out there, and if there had been one then one wouldn't need to 
> search on general map platforms. So what you get here is typically a 
> perpetual work-in-progress cobbling-together of data by ordinary people 
> volunteering time and effort. It will probably never be "complete" but it's 
> much better than nothing. The remedy to lack of coverage is to start 
> contributing to the common well and get others to do the same.
>
>
> Regards
> Nikhil VJ
> Pune
>
>
> On Friday, August 30, 2019 at 10:23:58 PM UTC+5:30, Ajayakumar A wrote:
>>
>> u can search in google map ( type it  as *police stations*, first u hv 
>> to zoom the area, then u can type, if u search it for wide area in google 
>> map, u will not get full data.so u hv to locate some area and search the 
>> police station) and make it as kml files, then u can process it in Arcgis. 
>> U can prepare the map also.
>>
>> On Tue, Aug 27, 2019 at 8:12 PM Shruti Lakhtakia <[email protected]> 
>> wrote:
>>
>>> Hi,
>>>
>>> I am a Ph.D. student working on crime and development in India, and I am 
>>> looking for:
>>>
>>> (1) a map of all the police stations in India, as well as their 
>>> jurisdictions,
>>> (2) information on how police stations can be mapped to the assembly 
>>> constituencies of their respective states.
>>>
>>> Please do let me know if you have any experience working on this, or any 
>>> suggestions on how this information can be collected.
>>>
>>> Thank you!
>>>
>>> Sincerely,
>>> Shruti Lakhtakia
>>>
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>>> Datameet is a community of Data Science enthusiasts in India. Know more 
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>>> .
>>>
>>
>>
>> -- 
>> -.
>> Ajayakumar A
>>
>>

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