Before 1987, motorists were warned about a landslide crossing or undercutting the road with a sign saying ‘SLIPS’. This tended to confuse tourists, who often did not know what it meant even if they spoke English. The symbolic sign depicting rocks sliding down a hill was introduced in 1987 as part of a move towards standardising New Zealand road signs with international signs.
Te whakamahi i tēnei tūemi
Waka Kotahi NZ Transport Agency
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