Section 3B.04 White Lane Line Pavement Markings and Warrants
Standard:
When used, lane line pavement markings delineating the separation of traffic lanes that have the same direction of travel shall be white.
Support:
Examples of lane line markings are shown in Figures 3B-2, 3B-3, 3B-7 through 3B-13, 3B-22, 3B-24, and 3B-26.
Standard:
Where crossing the lane line markings with care is permitted, the lane line markings shall consist of a normal broken white line.
Where crossing the lane line markings is discouraged, the lane line markings shall consist of a normal solid white line.
Option:
Solid white lane line markings may be used to separate through traffic lanes from auxiliary lanes, such as uphill truck lanes, left- or right-turn lanes, and preferential lanes. They may also be used to separate traffic lanes approaching an intersection.
Wide solid lane line markings may be used for greater emphasis.
Standard:
Where crossing the lane line markings is prohibited, the lane line markings shall consist of two normal solid white lines.
Lane line markings shall be used on all freeways and Interstate highways.
Guidance:
Lane line markings should be used on all roadways with two or more adjacent traffic lanes that have the same direction of travel. Lane line markings should also be used at congested locations where the roadway will accommodate more traffic lanes with lane line markings than without the markings.