Re: [Talk-ca] York Region Building Import

[Daniel @jfd553]

Hi all.
The York Region is a component of ODB data import, which has been widely 
discussed and we all agreed that whole import process was acceptable. There is 
then no reason to go back to the import mailing list to do the discussion 
again. Look here [1] for the appropriate import procedure.

Speaking of buildings... In order to stay active during Covid-19 lockdowns, I 
have been working on a Covid-19 personal mapping project since mid-April. My 
objective was to map the buildings in Sherbrooke (ODB only providing 5% of the 
buildings).
After mapping around 30,000 buildings (according to an Overpass Turbo query), 
80% of my initial goal is achieved. I keep moving forward with mapping and 
updating buildings and related features.

Best regards

[1] https://wiki.openstreetmap.org/wiki/Canada_-_The_Open_Database_of_Buildings

From: john whelan [mailto:jwhelan0...@gmail.com]
Sent: Monday, October 05, 2020 22:55
To: Andrew Deng
Cc: Talk-CA OpenStreetMap
Subject: Re: [Talk-ca] York Region Building Import

There are two sources of buildings to import one is Bing the other is the stat 
Canada licensed one.  Both have the correct license for OSM.

If you are going after the stat can one then there was an import plan drawn up 
for Canada and that is in the wiki.

I suggest if you use the stat can import plan basically just copy it together 
with the license information or perhaps you can do a sort of amendment of it to 
cover York.  The reason I suggest that is there is an import mailing group that 
gets involved and they tend to ask all sorts of questions.  Getting by them has 
been described as the hardest part of the import process.

The original import was done in Ottawa and we got all the licensing permissions 
sorted out and because Ottawa is fairly small the local group formed a 
consensus that that is what they were happy with and that was the basis of that 
import.

When we set it up to import across Canada the problem with the stat can data 
was the quality varied from municipality to municipality and there was some 
concerns about if the data should be preprocessed in some way.  Also in some 
areas such as Toronto local mappers wanted to feel more in control.

I can't recall who came up with the preprocessing but I'm sure James will 
remember.  Pierre I'm almost certain expressed his opinion.  It might be worth 
looking at what they came up with and why.  I do recall that some mappers 
thought the Ottawa building import should have been preprocessed but the local 
mappers were happy with the raw data.

Cheerio John

On Sun, Oct 4, 2020, 12:32 PM Andrew Deng via Talk-ca 
mailto:talk-ca@openstreetmap.org>> wrote:
Hello,

I primarily map in York Region, Ontario, and I have noticed that the Toronto 
Building Import has been completed 3 months ago. Therefore, I am proposing to 
open a task on the Task Manager for York Region buildings, since having the 
buildings imported here would be nice. I'm not sure of the process on how to do 
that, which is why I'm emailing this group.


--



Andrew (andrepoiy on OSM)

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Re: [Talk-ca] York Region Building Import

[john whelan]

There are two sources of buildings to import one is Bing the other is the
stat Canada licensed one.  Both have the correct license for OSM.

If you are going after the stat can one then there was an import plan drawn
up for Canada and that is in the wiki.

I suggest if you use the stat can import plan basically just copy it
together with the license information or perhaps you can do a sort of
amendment of it to cover York.  The reason I suggest that is there is an
import mailing group that gets involved and they tend to ask all sorts of
questions.  Getting by them has been described as the hardest part of the
import process.

The original import was done in Ottawa and we got all the licensing
permissions sorted out and because Ottawa is fairly small the local group
formed a consensus that that is what they were happy with and that was the
basis of that import.

When we set it up to import across Canada the problem with the stat can
data was the quality varied from municipality to municipality and there was
some concerns about if the data should be preprocessed in some way.  Also
in some areas such as Toronto local mappers wanted to feel more in control.

I can't recall who came up with the preprocessing but I'm sure James will
remember.  Pierre I'm almost certain expressed his opinion.  It might be
worth looking at what they came up with and why.  I do recall that some
mappers thought the Ottawa building import should have been preprocessed
but the local mappers were happy with the raw data.

Cheerio John

On Sun, Oct 4, 2020, 12:32 PM Andrew Deng via Talk-ca <
talk-ca@openstreetmap.org> wrote:

> Hello,
>
> I primarily map in York Region, Ontario, and I have noticed that the
> Toronto Building Import has been completed 3 months ago. Therefore, I am
> proposing to open a task on the Task Manager for York Region buildings,
> since having the buildings imported here would be nice. I'm not sure of the
> process on how to do that, which is why I'm emailing this group.
>
>
> --
>
>
>
> Andrew (andrepoiy on OSM)
>
> ___
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>
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Re: [Talk-ca] York Region Building Import

[Nate Wessel]

Hi Andrew,

I'm the one mostly responsible for setting up the second and final 
Toronto Building Import. Sorry we didn't make it out to you - I had to 
draw the line somewhere to avoid setting up a task manager that tried to 
cover all of Ontario.


My advice would be to treat this like a fully separate import, though 
one with a data source that has already been mostly vetted, argued over, 
compromised on, etc.


That is, your first step is to outline a detailed import plan on the OSM 
wiki, following the guidelines required for documentation of any import.

https://wiki.openstreetmap.org/wiki/Import/Guidelines
Just for example:
* What is the scope of the import?
* What data exactly will be imported?
* How will you conflate the data (not duplicate, overwrite, or overlap 
existing buildings)?
* Who have you talked to about this? Is there buy in? Have you addressed 
any concerns raised?

* etc.

So first document the plan as fully as possible, second reach out to 
local mappers (this is a good start but you'll need to do more as well, 
plus notifying the imports mailing list), finally revise the plan as 
necessary and build consensus with interested parties. If no outstanding 
concerns or roadblocks remain, after a while you may proceed with the 
import.


Doing an import properly is a big process, but I think there is a lot of 
interest around here in getting a more complete map of building 
footprints into OSM. The most important thing is to take it slowly and 
make sure everything is well thought out and that people have a chance 
to chime in and provide feedback on the proposal.


Best,

Nate Wessel
Cartographer, Planner, Transport Nerd
NateWessel.com 

On 2020-10-04 12:29 p.m., Andrew Deng via Talk-ca wrote:

Hello,

I primarily map in York Region, Ontario, and I have noticed that the 
Toronto Building Import has been completed 3 months ago. Therefore, I 
am proposing to open a task on the Task Manager for York Region 
buildings, since having the buildings imported here would be nice. I'm 
not sure of the process on how to do that, which is why I'm emailing 
this group.



--

Andrew (andrepoiy on OSM)



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