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Here's my five cents: I do not think it is practical to give coords for a middle point of Routes. I have looked around a bit and the only place I happened to find such coords is in Bundesautobahn 2. In this example there is an important junction in a city near the centre, so it makes sense, but in some Routes like Route 10 which consist of 3 or more separate fragments, defining any ""central"" point on them is too arbitrary. Also some routes are important and wide for a part of their length only, so their ""middle"" is not anything to go by. I would be happy with 2 points, but I know this is not practical in searching. I think an important destination (city or big town) somewhere between 1/3 and 2/3 of their length should be picked. But cases like Route 10 need more coords, maybe inline.  Talk "