Capacity of single-level intersection. 5

Full-scale experiments on the Road Research Laboratory track and on public roads have shown simple and economical ways of improving the capacity of and reducing delays at, single-level junctions of a given size. The public road experiments at 3-way, 4-way and 5-way junctions, previously controlled by traffic signals or conventional roundabouts, have shown improvements ranging from 20 to 35% within the same outer curb-line.