A driver at a stop sign-controlled intersection bears a positive duty to yield to oncoming traffic and may only proceed when it is objectively safe to do so. This duty cannot be overridden by courtesy or informal signals from other motorists. The driver must independently satisfy themselves that it is safe to enter the intersection regardless of what other drivers may indicate. Additionally, compliance with s90 of the Road Traffic Act is peremptory - a court must obtain and consider a certificate from the Registrar regarding previous motor vehicle convictions before passing sentence on a person convicted of offences under sections 52, 53, 54, 55, 76 or 77 of the Act, unless the statutory exceptions apply and reasons are endorsed on the record. Failure to comply renders the sentence irregular and liable to be set aside.