Intersection gridlock — Minnesota Permit Test

Do not enter an intersection controlled by a signal unless you can get through it completely without blocking cross traffic.

A car stranded in the middle blocks the green light for everybody else and cannot go anywhere itself.

You should not enter an intersection controlled by a traffic signal unless you can move through the intersection immediately, continuously and completely without blocking cross traffic.

The gridlock rule does not apply when a traffic-control agent or peace officer directs you.

Somebody directing traffic can see the whole intersection, which a driver at one corner cannot.

Directed by a traffic-control agent or a peace officer.

You may also enter to let an authorized emergency vehicle with its lights on pass.

Clearing the way for an ambulance is worth more than keeping one intersection tidy.

Moving to allow the passing of an authorized emergency vehicle with its lights activated.

You may enter where you are making a turn that lets the vehicle leave the intersection safely.

A turn empties you out of the intersection rather than leaving you sitting in it.

Making a turn that allows the vehicle to safely leave the intersection.

When may you enter a signal-controlled intersection?

When you can get all the way through it. A car stranded in the middle blocks the green light for everybody else and cannot go anywhere itself. Minnesota Driver’s Manual, p.64: “You should not enter an intersection controlled by a traffic signal unless you can move through the intersection immediately, continuously and completely without blocking cross traffic.”