The Australian Standard AS2890-1.2004 for a wheel stop states that it must be 1650mm wide. Area Safe has one concrete wheel stop that complies to this Australian Standard, that being the 1.65 Precast Concrete Wheel Stop - For Cars
One potential issue with removing concrete wheel stops is if the concrete wheel stop was installed with adhesive or epoxy on its base. If this is the case, you will have to jack hammer or sledgehammer the complete wheel stop. If the wheel stop has been glued down, the surface under the wheel stop will be very rough after breaking the wheel stop away. This can be fixed by grinding the surface smooth after the concrete wheel stop has been removed.
The other 3 types of concrete wheel stop’s that Area Safe supply are non-compliant but are specific industrial purposes. These include: