Hi Steve,

this is more complex than I thought :-(
If I got that right, the additional arcs to nodes on major roads
in Garmin maps are always inter-section links.
So, if I add them before calling RoadNetwork.splitCenters(),
I have to remove those which are not inter-section links later.
If I add them later, I can't be sure that the resulting route center satisfies
the constraints.

I have an algo that adds the arcs and nodeClass values,
but it is done before splitting, so the additional arcs are likely
not to be "inter-section links".

Maybe this is the reason that the last route center is so big?
Could this be a solution for my problem?

Gerd