1. - ericssonhistory.com

x 8009 Ordinary vehicle control implies that the signals change before the termina-X 8010Jf b btion of the maximum time if the traffic intensity diminishes to some extent, „ during a phase. Programme control is a further step in the development of& r B r r(right) in phase Dvehicle control, since the maximum green times as well can be adapted to theprevailing traffic load, i.e. the load during a certain number of successivecycles. The combination of ordinary vehicle control and programme controlhas very great advantages, therefore. The systems described have also provedtheir worth in bringing about a great increase in capacity and in moreflexible handling of the traffic.27