Definitions for the traffic line pavement markings

Solid line pavement markings delineating the separation of traffic lanes that have the same direction of travel & where crossing the lane line markings is discouraged. This is also used in conjunction with tick marks in aggressive curves for additional visibility. Tick marks are 2 foot dots, attached to the white line, that are 8 inches wide and gapped 6 feet between dots. Tick marks run from the PC to the PT through the curve. When tick marks run through an intersection the solid white line changes to a dotted white line forming a 12 inch wide (8 inch + 4 inch) x 2 foot long dot.

Broken line pavement markings are used wherever crossing the lane line is permitted. This line is 4 inches in width, with 10 foot long painted lines separated by 30 foot long gaps. On the freeway they would be 6
inch lines, 15 feet long with 25 foot gaps

A dotted lane line provides guidance or warning of a downstream change in lane function. A dotted line for lane extensions within an intersection should consist of 2 foot line segments and 6 foot gaps (1:3 ratio).
A dotted line separating an auxiliary lane between two freeway interchange or exit ramps involving lane drops should consist of 3 foot line segments and 9 foot gaps. Dotted white lane lines that are used for lane drop markings and that are used as a lane line separating through lanes from auxiliary lanes should
consist of line segments that are 3 feet in length separated by 9 foot gaps. A lane drop marking used in advance of lane drops at freeway/expressway exit ramps should begin at least 1/2 mile in advance of the theoretical gore. A dotted white line marking shall be used as the lane line to separate a through lane that
continues beyond the interchange or intersection from an adjacent lane under the following conditions:
A) A deceleration or acceleration lane,
B) A through lane that becomes a mandatory exit or turn lane,
C) An auxiliary lane 2 miles or less in length between an entrance ramp and an exit ramp,
D) An auxiliary lane 1 mile or less in length between two adjacent intersections,
E) Dotted line on a curve through an intersection

A white, double line between travel lanes that strongly limits crossing. This is the most restrictive white lane lines. An exception to crossing this line would be to enter the roadway from a drive or entrance. This
line consists of two parallel lines, 4 inches in width separated by a 4 inch gap

A yellow, double line on the farthest left acceptable travel lane that generally prohibits crossing. This is the most restrictive yellow lane line. An exception to crossing the line would be to enter a drive or entrance on the left side of the highway. This line consists of two parallel lines, 4 inches in width separated by a 4 inch gap.

A dotted yellow line on the farthest left acceptable travel lane that provides guidance or warning of a downstream change in lane function, namely a transition to a solid double yellow line.
This line consists of two parallel lines 4 inches in width, with 2 foot long painted lines separated by 6 foot long gaps, with 4 inches separating one line from the adjoining parallel line

A yellow line to the left of the acceptable travel lane that generally prohibit crossing. Some examples of this line would be on the freeway between the left through lane & the center median, to the left of a right turn on an off-ramp splitter island, left side of an off-ramp after the gore, non-freeway would be around a splitter island. An exception to crossing this line would be to enter a drive or entrance on the left side of the highway. The line is 4 inches wide (6 inches on freeways), except in rare occasions 12”

Part A) A yellow broken line on the farthest left acceptable normal travel lane and indicates a permissive condition allowing short term crossing of the line when conditions permit. This line is 4 inches in
width, with 10 foot long painted dashes separated by 30 foot long gaps (15 foot dashes seperated by 25 foot long gaps on freeway applications).Part B) A yellow broken line that indicates a permissive condition
allowing short term crossing of the line when conditions permit. Typically used in two-way left-turn lanes in conjunction with a solid yellow edge line.

A yellow dotted line on the farthest left acceptable travel lane that provides guidance or warning of a downstream change in lane function or lane extensions within an intersection, namely a solid yellow line.
This yellow line is 4 inches wide ( or 6 inch width for emphasis), 2 foot long painted dots separated by 6 foot long gaps (1:3 ratio).

Yellow lines 45° to centerline painted from left to right (perspective of starting near the opposing lane & coming at a 45° angle toward the direction of travel). Lines are 12” wide (25 – 40 MPH) & 24” wide
(40 mph & greater) & spaced at 1 foot per mile per hour of the posted speed. (i.e.: 45 MPH speed limit translates to 45 foot spacing) being measured upstation (leading end to leading end or trailing end to trailing end).

White lines 45° to a theoretical mid point line through the hatched area painted in chevron format (perspective of starting on the midpoint & coming at a 45° angle toward the directions of travel). Lines
are 12” wide (25 – 40 MPH) & 24” wide (40 mph & greater) & spaced at 1 foot per mile per hour of the posted speed. (i.e.: 45 MPH speed limit 45 foot spacing) being measured upstation (leading end to leading end).