So, is exceptionally slow traffic a problem or an immutable fact? There are a number of rules and skills designed to reduce the risk, but the most effective remedy is to make overtaking unnecessary. This “conveyor belt” effect – so basic and crucial to any decent traffic flow – requires four enabling factors. Third essential is road design and maintenance that does not turn “flow” into dodgems and disarray, nor undermine the fourth, and perhaps most vital, enabler of all: queuing confidence. “Wait for your turn then take your turn” becomes push and shove; overtaking becomes even more frequent and in circumstances which are even more dangerous.

Source: Daily Nation May 27, 2017 17:48 UTC