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I want to merge two lines that their distance is from 0 meter to 20 meter. How can I do that by QGIS or ArcGIS ? Initial data

Distance between A and B lines are from 0 to 20 meters

Result that I would like to have The link for download data. https://drive.google.com/file/d/19Y-cuqGPypva0Xz97LLKrxK8zPraXCDd/view?usp=sharing

the result when I use the Collapse Dual Lines to Centerline (Cartography Toobox) Before

After The result as you can see that (2) the 2 lines did not merge into 1 (1) the tool did nothing Here, I would like to see that 2 lines should merge into 1.

PolyGeo
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Cường Lê
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    Please decide which software you're going to use for this task, otherwise answering and/or finding the correct answer later on is harder. – Erik Apr 08 '20 at 12:52
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    Collapse Dual Lines to Centerline (Cartography Toobox) requires advanced license https://desktop.arcgis.com/en/arcmap/latest/tools/cartography-toolbox/collapse-dual-lines-to-centerline.htm – Mapperz Apr 08 '20 at 13:03
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    In QGIS, how can I do this, please @Erik – Cường Lê Apr 08 '20 at 13:28
  • https://gis.stackexchange.com/a/318733/120129 – Cyril Mikhalchenko Apr 08 '20 at 13:31
  • Thank you @CyrilMikhalchenko – Cường Lê Apr 08 '20 at 13:40
  • It's something...:-) – Cyril Mikhalchenko Apr 08 '20 at 13:53
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    It is preferable that you digitized new lines manually. It is not a huge layer. I downloaded rar file and visualized layer is multipart, with 226 single parts, with multiple self intersections and, possibly, with many topological and geometry issues. I tried it out simplify tool of Processing Tool Box and it can be obtained a better aspect of layer but, it is not the solution. – xunilk Apr 08 '20 at 22:10
  • Please decide which of the GIS products mentioned you want to ask about. By asking about more than one you are effectively asking multiple questions which goes against the [Tour]. You should then describe not just what you want to do, but precisely what you have tried and where you are stuck trying that. – PolyGeo Apr 08 '20 at 22:52

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