A lane on a roadway that, depending upon the
time of day, changes direction of travel. Sometimes, as in Snellville, Georgia, the direction of travel is noted by an electric sign every 200 feet hanging across
the highway. Other times, as in parts of Maryland,
there is nothing but a sign.
Example:
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
From 5am to noon, lanes 1, 2, 3, and 4 are Southbound, lane 5 is a turn lane, and lanes 6 and 7 are Northbound. From noon to 8pm, lanes 1 and 2 are Southbound, lane 3 is a turn lane, and lanes 4 through 7 are Northbound.