[Talk-TW] Working together in improving Taiwan roads

Srividya Bharadwaj srividya於mapbox.com
Wed 9月 14 07:00:51 UTC 2016


Hello everyone,

As discussed earlier by Maning [0], we reviewed alignment of current
OpenStreetMap data and imagery available for tracing with Strava GPS
traces.  I posted my observations in my diary [1].  As a result of our
review, our satellite team at Mapbox updated our imagery for several cities
in Taiwan [2].  All our Mapbox Satellite imagery is open for tracing in
OpenStreetMap.  We hope the community will find this useful in improving
the data.  This is just a start and we are excited to work together with
the TW-OSM community.

[0]
https://lists.openstreetmap.org/pipermail/talk-tw/2016-September/001316.html
[1] http://www.openstreetmap.org/user/srividya_c/diary/39482
[2] https://gist.github.com/srividyacb/c8a329a5945f01b0984a301180af7e32

Thank you,
Srividyacb
Mapbox Data Team

On Sat, Sep 10, 2016 at 5:39 PM, Rex Tsai <rex.cc.tsai於gmail.com> wrote:

>  Hi,
>
> Regarding the WMS maps and geodata offered by National Land Surveying
> and Mapping Center (NLSC)[1], MOI, Taiwan government.
>
> - There are 6 layers[2] are released under Taiwan Open Government Data
> License 1.0[3], which is convertible to CC-BY 4.0.
> - The major two layers in wms[2] are EMAP5_OPENDATA (with Contour line)
> and EMAP6_OPENDATA (without Contour line), which has been added into
> josm.
> - We have listed NLSC on the contributor list[4].
>
> The other WMS[5] from NLSC, including the General Map - Orthoimage[7]
> are licensed under NLSC user license agreement[6]. Sorry, the license
> clause[6] is only in Chinese and it's incompatible with ODbL nor OSM
> Contributor Terms. We can not use the aerial imagery for tracing.
>
> [1] National Land Surveying and Mapping Center. Republic of
> China(Taiwan) - http://www.nlsc.gov.tw/En
> [2] http://maps.nlsc.gov.tw/OpenData/wms
> [3] Taiwan Open Government Data License 1.0 | Open Data platform -
> http://data.gov.tw/node/18250
> [4] https://wiki.openstreetmap.org/wiki/Contributors#
> National_Land_Surveying_and_Mapping_Center
> [5] http://maps.nlsc.gov.tw/S_Maps/wms
> [6] http://maps.nlsc.gov.tw/pro/use_clause.jsp
> [7] General Map Orthoimage in WMS/WMTS 臺灣通用電子地圖正射影像 -
> http://data.moi.gov.tw/moiod/Data/DataDetail.aspx?oid=
> D9E44C4B-A5CD-4E44-BBF7-0C208513FA8E
>
> Cheers
> -Rex
>
> 2016-09-09 17:33 GMT+08:00 maning sambale <emmanuel.sambale於gmail.com>:
> > Hi everyone,
> >
> > Thank you for your warm welcome.  My replies inline.
> >
> >
> > @Dennis
> >
> >> QA tool to fix small errors in Taiwan some times ago.
> >
> > Yes, we do global fixing of common errors using to-fix.  We welcome
> > feedback if you notice any issues with our edits.
> >
> >> I'm curious about how will Mapbox do to improve the data quality,
> especially to enhance the navigation part. And
> > what the local community can do to help?
> >
> > Making OSM navigable is our main goal. By navigation, we mean
> > navigation for car. Data such as:
> > - roads and names
> > - oneways
> > - traffic signals
> > - turn restrictions (including conditional turn restrictions)
> > - turn lanes (including bike lanes)
> > - speed limits
> > - exit signs and destinations for motorways
> >
> >
> > We have worked with the OSM community in several countries such as US
> > [0], Canada [1] and Germany [2] and we plan to do the same for other
> > countries.  While looking at the data in Taiwan, we noticed there were
> > misaligned roads [3], so before we add navigation specific data, its
> > important to first improve road geometry.
> >
> > We will probably work on a per city basis.  Do you have any suggestion
> > of which city we should do first?
> > We are still continuing our research before we start mapping.   We
> > will definitely share the outcomes here.
> >
> > We normally use the Tasking Manager to coordinate mapping, if the
> > community use other tools,
> > let us know so we can work together.
> >
> > @rex,
> >
> >> we use Facebook[0], trello[1], slack[2] for communication
> >
> > I just joined slack.
> >
> >
> >> General Orthoimage Map in WMS/WMTS 臺灣通用電子地圖正射影像 -
> http://data.moi.gov.tw/moiod/Data/DataDetail.aspx?oid=
> D9E44C4B-A5CD-4E44-BBF7-0C208513FA8E
> >
> > This is amazing! I loaded the wtms in JOSM and the alignment from
> > STRAVA is really good [4]!
> > I assume the license to trace in OSM is OK?
> > We will use this as a reference for aligning instead of the really old
> Bing.
> >
> >
> > [0] http://www.openstreetmap.org/user/poornibadrinath/diary/38600
> > [1] http://www.openstreetmap.org/user/poornibadrinath/diary/39331
> > [2] http://www.openstreetmap.org/user/nammala/diary/39345
> > [3] https://gist.github.com/srividyacb/93628d55c6a6efdb9ec26cb21d3a64de
> > [4] https://osm-tw.slack.com/files/maning/F29SVJP0D/taiwan_
> orthophoto2.gif
> >
> > On Thu, Sep 8, 2016 at 5:21 PM, Rex Tsai <rex.cc.tsai於gmail.com> wrote:
> >> Hi, Maning and friends from mapbox
> >>
> >> Welcome and thanks for helping out improve the data for Taiwan
> community.
> >>
> >> We have some tools for collaboration in local communities, we use
> >> Facebook[0], trello[1], slack[2] for communication. And hackpad[3] for
> >> documentation. Basically, all the tools are open to everyone, any
> >> communities members can join the any of the services. They can file
> >> task and call for help on trello, and file proposals and ideas on
> >> hackpad. And we will generate monthly summary reports[6] before the
> >> Taipei meetup, to let the community know what has bee done and what's
> >> next.
> >>
> >> You are more than welcome to join us[4][5]. If you are old school, we
> >> are also in #osm-tw channel on OFTC[7] (which bridged to slack #random
> >> channel). Most of the documents are in Chinese, please ask if you have
> >> any problem.
> >>
> >> We also have a few tasks on improving data quality. One of approach is
> >> Map's Watch team[8]. Basically, we use some scripts to forward the
> >> changes of new mappers and notes to slack channel, and the team
> >> members can triage in the slack. We also have some QA tool planning in
> >> trello backlog[9][10], but don't have much bandwidth to implement them
> >> yet.
> >>
> >> You are more than welcome to contribute your views and investigations
> >> on Taiwan's road data. Feel free to use any tools I mentioned to work
> >> with local communities. As local communities, we can help on
> >> explaining Road tagging system in Taiwan[11], and use the open data
> >> map imagery from Taiwan government as a reference.
> >>
> >> Coping @kcwu, who help to build some infrastructure tools for Taiwan
> community.
> >>
> >> [0] https://www.facebook.com/groups/OpenStreetMap.TW/
> >> [1] Trello 協同工作 - osmtw.hackpad.com -
> >> https://osmtw.hackpad.com/Trello-%E5%8D%94%E5%90%8C%E5%
> B7%A5%E4%BD%9C-eO4GN03msa5
> >> [2] Trello - osmtw.hackpad.com -
> >> https://osmtw.hackpad.com/collection/n2kYF6a24OV
> >> [3] https://osmtw.hackpad.com/
> >> [4] Join Trello:
> >> https://trello.com/invite/osmtw/383c005da1231e9e4e7756d9fe2812a0
> >> [5] Join Slack: https://osm-tw.signup.team/
> >> [6] Trello - osmtw.hackpad.com - https://osmtw.hackpad.com/ep/
> group/n2kYF6a24OV
> >> [7] http://webchat.oftc.net/?channels=osm-tw
> >> [8] 地圖守夜人 Slack 標準作業程序 - osmtw.hackpad.com -
> >> https://osmtw.hackpad.com/%E5%9C%B0%E5%9C%96%E5%AE%88%E5%A4%
> 9C%E4%BA%BA-Slack-%E6%A8%99%E6%BA%96%E4%BD%9C%E6%A5%AD%E7%
> A8%8B%E5%BA%8F-iI9UeCvqdPx
> >> [9] OpenStreetMap Backlog 挖洞填坑的建置 Osmose QA Tool | Trello -
> >> https://trello.com/c/6siyUD1b/33-osmose-qa-tool
> >> [10] OpenStreetMap Backlog 挖洞填坑的翻譯 Osmose 1.0-2016-04-09 | Trello -
> >> https://trello.com/c/4vpR36Wp/56-osmose-1-0-2016-04-09
> >> [11] Road tagging system in Taiwan -
> >> https://wiki.openstreetmap.org/wiki/WikiProject_Taiwan/
> Taiwan_tagging#Trunk_Roads_.2F_Expressways
> >> [12] General Purpose Map in WMS/WMTS 臺灣通用電子地圖(不含等高線) -
> >> http://data.moi.gov.tw/moiod/Data/DataDetail.aspx?oid=
> EAF031FB-8834-4947-91A0-4BDA69342785
> >> [13] General Purpose Map with contour line in WMS/WMTS
> >> 臺灣通用電子地圖(套疊等高線,比例尺小於一萬八千分之一) -
> >> http://data.moi.gov.tw/moiod/Data/DataDetail.aspx?oid=
> 067C5474-539C-45D4-A743-55A7C6113511
> >> [14] General Orthoimage Map in WMS/WMTS 臺灣通用電子地圖正射影像 -
> >> http://data.moi.gov.tw/moiod/Data/DataDetail.aspx?oid=
> D9E44C4B-A5CD-4E44-BBF7-0C208513FA8E
> >>
> >> Cheers
> >> -Rex
> >>
> >> 2016-09-08 2:11 GMT+08:00 Dennis Raylin Chen <b92612009於gmail.com>:
> >>> Hi Maning
> >>>
> >>> It's great to see Mapbox improving the data quality. I saw there are
> several
> >>> Mapbox accounts using the QA tool to fix small errors in Taiwan some
> times
> >>> ago.
> >>>
> >>> I'm curious about how will Mapbox do to improve the data quality,
> especially
> >>> to enhance the navigation part. And what the local community can do to
> help?
> >>>
> >>> Dennis
> >>> aka Supaplex
> >>>
> >>> On Tue, Sep 6, 2016 at 6:06 PM, maning sambale <
> emmanuel.sambale於gmail.com>
> >>> wrote:
> >>>>
> >>>> 你好!
> >>>>
> >>>> I'm Maning Sambale from Mapbox.  Our data team is looking at improving
> >>>> road network for Taiwan in OpenStreetMap, this is similar to what we
> >>>> did in Japan [0] last year.  This initiative is part of our mission to
> >>>> make OpenStreetMap more navigable.
> >>>>
> >>>> We are in the early stages of research and we will share our findings
> >>>> soon.  Initially, we are seeing the following:
> >>>>
> >>>> * Road coverage is very good especially for the major cities on the
> >>>> west coast of the country.
> >>>> * There were alignment issues in some major roads when compared to
> >>>> Strava heat map (our team fixed some of them last week).
> >>>> * It's difficult to use current Bing imagery because its old and they
> >>>> are not aligned to Strava in some areas.
> >>>>
> >>>> Before we proceed, it would be great to discuss with everyone here on
> >>>> how we can work together.  I'd be happy to discuss in a conference
> >>>> call if needed.
> >>>>
> >>>>
> >>>> [0] https://github.com/mapbox/mapping/issues/120
> >>>>
> >>>> 多謝
> >>>>
> >>>> Maning Sambale
> >>>> Data team, Mapbox
> >>>>
> >>>> _______________________________________________
> >>>> Talk-TW mailing list
> >>>> Talk-TW於openstreetmap.org
> >>>> https://lists.openstreetmap.org/listinfo/talk-tw
> >>>
> >>>
> >>>
> >>> _______________________________________________
> >>> Talk-TW mailing list
> >>> Talk-TW於openstreetmap.org
> >>> https://lists.openstreetmap.org/listinfo/talk-tw
> >>>
> >
> >
> >
> > --
> > cheers,
> > maning
> > ------------------------------------------------------
> > "Freedom is still the most radical idea of all" -N.Branden
> > https://epsg4253.wordpress.com/
> > http://twitter.com/maningsambale
> > ------------------------------------------------------
> >
> > _______________________________________________
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