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