The Expert will be specific knowledgeable people at the Department of Transport, Arrive Alive Communications, the Road Traffic Management Corporation or others who might have the expertise to answer the question.
The distance is 450 mm, not 150 mm. If you are not parked within a demarcated parking bay or parking area, you may not park with the kerbside wheels more than 450 mm into the roadway, unless permitted by a road sign.
