Anyone know what these dotted lines on the map ref

[illegalpantheon]

Can anyone tell me what these black and white dotted lines reference?
They appear in the flight history when satellite map is enabled and run around and away from airspaces. I haven't been able to come up with a plausible idea yet.
Thanks in advance

 

[_Fritz_]

Railway Lines

 

[illegalpantheon]

Ah yes. Of course. Thanks