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#1 2018-07-19 09:30:40

Grab Osm1
Member
Registered: 2018-07-19
Posts: 4

Grab about to work on enhancing OSM maps for Bangkok

Hello Mappers,

We are a team from Grab, who would start working on OSM enhancing the map quality for Bangkok city.
Our scope of work will limit to the areas served by Grab and not the entire city.
We only concentrate on creating / correcting the road network. 

While we continue working on pre-analysis of the city, identifying best imagery to be used, posting the update here for help from local team in guiding us with relevant information on imagery and/or country specific mapping guidelines.

Will revert in the same thread after we complete our pre-analysis report

Thanks in advance

Grab Team

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#2 2018-07-20 18:12:28

Bernhard Hiller
Member
Registered: 2011-05-10
Posts: 729

Re: Grab about to work on enhancing OSM maps for Bangkok

Did you participate in the "#GrabOSM mapathon" (see thread https://forum.openstreetmap.org/viewtopic.php?id=62959 )?

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#3 2018-07-21 02:26:21

Mishari
Member
Registered: 2013-01-14
Posts: 78

Re: Grab about to work on enhancing OSM maps for Bangkok

Bernhard Hiller wrote:

Did you participate in the "#GrabOSM mapathon" (see thread https://forum.openstreetmap.org/viewtopic.php?id=62959 )?

Seems to be a different team, but we're glad they've learned, eh? :-D

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#4 2018-08-07 07:38:30

Grab Osm1
Member
Registered: 2018-07-19
Posts: 4

Re: Grab about to work on enhancing OSM maps for Bangkok

Hello Everyone,

In further continuation to our earlier post on mapping efforts to enhance OSM map for Bangkok, we have done pre-analysis on sample areas and found that there is more scope for adding missing roads, while existing data corrections are minimal.

We identified that Bing Imagery is well aligned with existing data and strava gps, however, in some areas, when zoomed in, imagery is found cloudy.
Hence in such instances we will refer to digi standard imagery to identify missing roads, but will come back to Bing imagery for creation and/or alignment.

We have created an issue in our project page and request for any feedback and/or suggestions
Here is the link for the same - https://github.com/GRABOSM/Grab-Data/issues/21

This issue also has the snapshots of the example missing roads instances we found.

We would be happy to clarify questions if any

Thanks
Grab Team

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#5 2018-08-07 07:43:46

Grab Osm1
Member
Registered: 2018-07-19
Posts: 4

Re: Grab about to work on enhancing OSM maps for Bangkok

A quick note -
We also checked with IODB (Imagery Offset Database) to check for any existing offsets recorded and we did not find any.  We will keep a track and record relevant offsets while we continue working on the city
Thanks
Grab Team

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