What does the D1 acceptable solution say?
MBIE produces acceptable solutions that give one way of complying with the Building Code. Acceptable solution D1/AS1 describes how to comply with the performance criteria of clause D1. D1/AS1 in paragraph 10 Movement of vehicles refers to an Australian Standard, AS 2890.1:1993 Parking Facilities Off Street Car Parking. A revised version of this standard has been published, but the accessible car park width of the 1993 version still applies.
The parts of paragraph 10 applying to accessible car parks state:
10.1 Car parking areas
10.1.1 AS 2890: Part 1 as modified by Paragraph 10.2 is an acceptable solution for car parking areas and circulation routes.
Comment: The width of an accessible car park is given in AS 2890.1 Figure 2.2 as 3.2m, but it is noted in 2.4.1 (b) (ii) of the Standard that if there is an adjacent obstruction the width of all car parks should be increased by 300mm. In the case of an accessible car park, an obstruction would include a kerb or garden which would prevent the movement of a wheelchair.
10.2 Modifications to AS 289010.2.1 AS 2890:Part 1 is modified as follows:
Appendix C: Delete and replace with:
"Accessible car parking spaces shall be provided on the scale of:
- one for up to 10 total spaces provided
- two for up to 100 total spaces provided
plus 1 more for every additional 50 spaces when car parks are provided in or associated with a building which is accessible."