While a formal filter-in-turn road rule does not exist elsewhere, road users in other countries may spontaneously adopt a similar arrangement from time to time at merge junctions where traffic is slow-moving and roughly equally heavy on both roads, even where one road has legal priority. A similar junction, known as an
all-way stop, is common in North America and South Africa, where the vehicle that stops first proceeds first. In Mexico, some intersections require vehicles to take turns to proceed. Depending on the region, they are known as either "", "", "" (where X is the number of approaches), or "". Unlike an all-way stop, vehicles are not always required to make a complete stop. Vehicles generally have to give way to pedestrians. ==References==