[Tile-serving] [osm2pgsql] Change z_order of link roads (#132)

[math1985]

In the main openstreetmap-carto style and most styles derived from that, link roads are rendered below any other type of road. This is done so that the end of link roads [do not overlap](http://www.openstreetmap.org/#map=17/51.67412/5.32896) with the roads on which they end up.

It would therefore be logical to give link roads a lower z_order.

Do you think this is something that can/should be handled by osm2pgsql?

See also the discussion here: https://github.com/gravitystorm/openstreetmap-carto

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/osm2pgsql/issues/132
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