T2A or TW02 Temporary Warning Other Hazard Road Signs, referred to as a W2-1A Sign in the TCD Rule, are used in an emergency situation to indicate a temporary hazard exists on or adjacent to the roadway. The TW-2 Other Hazard Traffic Sign is used in-conjunction with a supplementary plate describing that hazard on Level One New Zealand Roads with Temporary Traffic Management (TTM) and is in the Waka Kotahi Code of Practice (CoPTTM).