Road signs in Singapore amber beacons, and are valid yet uncommon on the roads. The road markings and road dividers are "white zig zag lines" that indicate a zebra crossing in the vicinity, similar to the United Kingdom and Republic of Ireland Zebra crossing rules. On approach, regardless of the absence of any pedestrians, all motorists are required to keep left of the divider, prepare to stop and stay in their respective lanes, i.e. no overtaking is permitted. When pedestrians are present at the side of a zebra crossing, all motorists are obligated to give priority to pedestrians crossing the zebra crossing bars, by
Level crossings in the United Kingdom signed on 14 March 1957, and automatic and automated crossings came into use, with the first automatically operated level crossing commencing operation at Spath near Uttoxeter in Staffordshire in May 1961. Automatic half-barrier crossings later came into being after another enquiry abroad in 1963, consisting of a single arm each side of the road, which block only oncoming traffic leaving the exits clear for trapped occupants. Half barriers were considered to have an advantage as they have a lesser closure time and do not require to be interlocked with signals, but cases where impatient motorists have driven around the barriers