|(a) The executive director may restrict a commercial
motor vehicle to a specific lane of traffic in a construction or maintenance
work zone for a highway that is part of the state highway system if
the executive director determines that, based on traffic study performed
by the department to evaluate the effect of the restriction, the restriction
is necessary to improve safety.
(b) The traffic study must include a review of:
(1) the percentage of all vehicles in the construction
or maintenance work zone that is anticipated to be commercial motor
(2) the lane configurations in the work zone;
(3) lane widths in the work zone;
(4) the roadway geometry in the work zone; and
(5) the speed limit in the work zone.
(c) If the executive director imposes a lane restriction
under this section, the department shall erect and maintain official
traffic control devices informing the driving public of that restriction.
A lane restriction may not be enforced until the appropriate traffic
control devices are in place.
(d) The executive director may rescind a lane restriction
imposed under this section at any time that the executive director
determines that the restriction is no longer necessary to improve
(e) A lane restriction imposed under this section expires
when the lane that is subject to the restriction is no longer in a
construction or maintenance work zone.
(f) The department shall remove traffic control devices
erected under this section if the lane restriction is rescinded under
subsection (d) or expires under subsection (e).