An undivided highway has one through lane in each direction and no higher speed has been authorized and posted. What maximum applies? Enter the number in miles per hour.

Explication

This undivided, one-lane-each-way highway falls under the general 55-mile-per-hour maximum. The broader 65-mile-per-hour statewide ceiling does not displace this narrower road-type rule unless a higher speed is authorized and posted.