<Tr> <Td> </Td> <Td> This section needs expansion . You can help by adding to it . (January 2009) </Td> </Tr> <P> Generally speaking, Canadian pavement marking standards are consistent with those used throughout the United States . </P> <P> Yellow lines are used to separate traffic moving in opposite directions, and white lines are used to separate traffic moving in the same direction, and on the shoulders of paved roads . On one - directional roads, a yellow line appears on the left shoulder, and a white line on the right shoulder . Passing rules are denoted by dashed lines as in the United States . Orange painted lines are sometimes used when the direction of the road is altered temporarily for construction projects . However, the colour scheme was reversed before 1971, when white was formerly used to denote the separation of opposing traffic, and yellow lines, when used, to denote the separation of the paved road from the right - hand shoulder . Canada adopted similar road marking standards to conform with those adopted in the USA between 1971 and 1978 . </P> <P> Broken lines that are wider and closer together than regular broken lines are called continuity lines . Continuity lines on the left side of a lane denote that the lane is about to end and that motorists must soon merge left . Continuity lines on the right mean that the lane will continue, but traffic may merge into it ahead . </P>

Red and white markings in middle of road