Federal Register / Vol. 56. No. 144 / Friday, July 28, 1991 / Rules and 
Regulations    35531


A4.6 Parking and Passenger Loading Zones

A4.5.3 Carpet. Much more needs to be done
in developing both quantitative and qualitative
Criteria for carpeting (i.e., problems associated
with texture and weave need to be studied)
are well established.  When both carpet and
However, certain functional characteristics
are well established.  When both carpet and
padding are used, it is desirable to have mini-
mum movement (preferably none) between the
floor and the pad and the pad and the carpet
which would allow the carpet to hump or  warp.
In heavily trafficked areas, a thick soft (plush)
pad or cushion, particularly in combination
with long carpet pile makes it difficult for
individuals in wheelchairs and those with
other ambulatory disabilities  to get about.
Firm carpeting can be achieved through
proper selections and combination of pad and
carpet.  Sometimes with the elimination of the
pad or cushion and with proper installation.
Carpeting designed with a weave that causes a
zig-zag effect when wheeled across is strongly
discouraged.

A4.6 Parking and Passenger Loading
Zones.

A4.6.3  Parking Spaces. The increasing use
of vans with side-mounted lifts or ramps by
persons with disabilities has necessitated some
revisions in specifications for parking spaces
and adjacent access aisles.  The typical acces-
sible, parking space is 96 in (2440 mm) wide
with an adjacent 60 in (1525 mm) access aisle.
However, this aisle does not permit lifts or
Ramps to be deployed and still leave room for
a person using a wheelchair or other mobility
aid to exit the lift platform or ramp.  In test
conducted with actual lift/van/wheelchair
combinations, (under a Board-sponsored
Accessible Parking and Loading Zones Project)
researchers found that a space and aisle total-
ing almost 204 in (5180 mm) wide was needed
to deploy a lift and exit conveniently.  The "van
accessible" parking space required by these
guidelines provides a 96 in (2440 mm) wide
space with a 96 in (2440 mm) adjacent access
aisle which is just wide enough to maneuver
and exit from a side mounted lift.  If a 96 in
(2440 mm) access aisle is placed between
two spaces, two "van accessible" spaces are
created.  Alternatively, if the wide access aisle
is provided at the end of a row (an area often
unused),it may be possible to provide the
wide access aisle without additional space
(see Fig. A5(a)).

A sign is needed to alert van users to the pres-
ence of the wider aisle, but the space is not
intended to be restricted only to vans.

Universal Parking Space Design. An alterna-
tive to the provision of a percentage of spaces
with a wide aisle, and the associated need to
include additional signage, is the use of what
has been called the universal parking space
design. Under this design all accessible spaces
are 132 in (3350 mm) wide with a 60 in
(1525 mm) access aisle (see Fig. A5(b)). One

A6 3-13-92 Fred as you well know Fig A5 was developed by the
Fire Dept, Sandra Ellis & myself. Diagonal lines are a requirement as
it is designed to place driver "on notice" Court Terminology.
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