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I am trying to use qgis to visualize the shortest path algorithm's result. I managed to import the osm map into qgis

enter image description here

But I think it looks kind of different. I was referring to this link and she has this nice map like this

enter image description here

So I tried to import the database creating using osm2po. And this is what I got

enter image description here

This is still different from the one seen at link. I know the region is different, but still

I followed the same step as defined in link link. I also used the same file for austria and imported it into my database. I changed the style as well and this is what I got.

enter image description here

Now the roads and highways in the link link look nice and fine. However, in my case they look kind of overlapped. Why is it so?

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please change the title of your question as it does not reflect what you are asking in the body. Maybe something like " symbolizing OSM in QGIS for routing" –  Brad Nesom Jun 14 '12 at 16:38

1 Answer 1

As you already discovered, the general idea is to create a symbol out of two layers: one layer with a thicker grey line and on top of that a thinner white line.

enter image description here

To avoid "overlapping", activate "Symbol levels" in the upper right corner of the style tab.

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I fixed the overlapping issue. However, I didn't get the two layer symbol method. Could you please attach some screenshots? –  user31820 Jun 15 '12 at 2:19

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