RP52 or RG20 Regulatory General Single Lane Priority Road Signs, referred to as a R2-8 Sign in the TCD Rule, are used to advise vehicles of priority on a single lane road around road works where manual traffic management is not in use. RG-20 signs are used in combination with the One Lane Sign and is for temporary situations only. The RG-20 Traffic Sign can be used on Level 1 New Zealand Roads for Temporary Traffic Management (TTM) and is in the Waka Kotahi Code of Practice (CoPTTM).