326.1. The driver of a road vehicle shall not cross any of the following lines marking off lanes:(1) a solid single line;
(2) a solid double line;
(3) a double line consisting of a broken line and a solid line, the latter being adjacent to the lane in which the road vehicle is moving.
In addition to the exceptions provided for in sections 344 and 378, the first paragraph does not apply where the driver must leave the lane he is using because it is obstructed or closed to traffic, or in order to make a left turn towards another road or a private entry; the driver must however assure himself he can do so in safety.