(a) shall drive his vehicle as nearly as practicable entirely within a single lane and shall not drive from one lane to another unless such movement can be made with safety and in accordance with the provisions of this Act,

(b) shall not drive from one lane to another without first signalling his intention to do so in the manner prescribed by section 163 or 164,

(c) shall not use or drive in the centre lane of a three-lane highway except when overtaking and passing another vehicle proceeding in the same direction or when approaching an intersection where he intends to turn to the left, or when such lane is designated for traffic moving in the direction of travel of the vehicle, and

(d) where a traffic control device directs slow moving traffic to use a designated lane, when driving at less than the normal speed of traffic at the time and place and under the conditions then existing shall use or drive in that lane only.