I've been out on that open road
Lana rides in order to try and escape her life. It’s her only escape from her nightmares.
So she’s been out on the road because something has gone wrong and cannot cope with it. Similar to how Frank Ocean tries to swim far away from his life.
Lana simply is trying to run away, she hopes that her past will not catch up with her. She often uses driving as a way to get away from her problems.
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