For standard applications, Maine DOT’s typical lane line width is 4 inches.
MDOT has a study underway for large animal hazards (e.g., moose). This line is 8 inches wide so that at night people would be able to identify a black hole or break in the line and should suspect a large animal. Response indicates that truckers like the wide line on rural roads because it gives better definition. With this better visibility, truckers have stated that they can actually go faster, which is opposite of the DOT’s desire to slow down the traveling public.
MDOT uses wider lane lines only on interstates (and the test patterns for large animals).
MDOT does not implement wider lane lines in work zones. Line widths of 4 inch rural and 6 inch interstate are used for work zone applications.
Topics: Pavement Markings