Driving through tunnels can get a lot of people riled up.
It's dark, cramped, and there always seems to be "that guy" who speeds through, changing lanes like they own the place.
Is changing lanes in a tunnel even legal, anyways?
GoMN spent some time riding around with Ken Johnson, a Minnesota Department of Transportation work zone, pavement markings and traffic devices engineer. He explained how drivers are supposed to behave in tunnels and told us all about what those different pavement markings (lines) mean.
Watch the video to learn more.