How can motorists be fined at locations where there are no signs, such as near intersections or adjacent to barrier lines?

The NSW Road Rules apply whether a sign is in place or not. It is simply not feasible to signpost all intersections and areas where vehicles might park illegally. If you park in a manner that obstructs access or visibility, even for pedestrians, or forces other motorists to break the law to avoid your vehicle, then you may have parked illegally. For more details on traffic regulations, visit the RMS website.