19. Using an MPMD on a public highway on which the maximum speed limit is more than 50 km/h is prohibited, unless the user(1) crosses the public highway at an intersection;
(2) travels on the roadway of a traffic circle to go from a public highway on which the maximum speed limit is 50 km/h or less to another; or
(3) uses a cycle lane separated from the roadway and specially laid out to prevent vehicles from crossing over from the roadway to the cycle lane or vice versa, or having that effect.