A. center lane
A. center lane
B. innermost (left) lane
C. outermost (right) lane
Expressways are designed to move large volumes of vehicles at similar speed safely and efficiently across long distances. Uniform speed is essential to an expressway’s efficiency.
Highways are slower roads than expressways. They are designed for moderate to fast speed (depending on the number of carriageways) and they are used as major roads.
If you drive too slowly you cause lots of lane changes by motorists who need to pass you. Changing lanes increases the risk of accidents, and slows the average speed of the road once traffic reaches a critical volume. If you cannot drive within 20kph of the expressway or highway speed limit then you are causing a problem, plus driving slowly will frustrate other drivers.
Speedy drivers are to be blamed equally. Since traffic tends to move at a uniform speed, other drivers won’t be able to judge the position of your vehicle if you are going much faster than everyone else. You will have a harder time stopping if traffic in front of you suddenly brakes, hence you’ll increase your accident risk.