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(16) Where provided in below grade stations, escalators shall have a minimum clear width of 32 inches. At the top and bottom of each escalator run, at least two contiguous treads shall be level beyond the comb plate before the risers begin to form. All escalator treads shall be marked by a strip of clearly contrasting color, 2 inches in width, placed parallel to and on the nose of each step. The strip shall be of a material that is at least as slip resistant as the remainder of the tread. The edge of the tread shall be apparent from both ascending and descending directions.

(17) Where provided, elevators shall be glazed or have transparent panels to allow an unobstructed view both in to and out of the car. Elevators shall comply with 4.10.

EXCEPTION: Elevator cars with a clear floor area in which a 60 inch diameter circle can be inscribed may be substituted for the minimum car dimensions of 4.10, Fig. 22.

(18) Where provided, ticketing areas shall permit persons with disabilities to obtain a ticket and check baggage and shall comply with 7.2.

(19). Where provided, baggage check-in and retrieval systems shall be on an accessible route complying with 4.3, and shall have space immediately adjacent complying with 4.2. If unattended security barriers are provided, at least one gate shall comply with 4.13. Gates which must be pushed open by wheelchair or mobility aid users shall have a smooth continuous surface extending from 2 inches above the sloor to 27 inches above the floor.

10.3.2 Existing Facilities: Key Stations.

(1) Rapid, light and commuter rail key stations, as defined under criteria established by the Department of Transportation in subpart C of 49 CFR part 37 and existing intercity rail stations shall provide at least one accessible route from an accessible entrance to those areas necessary for use of the transportation system.

(2) The accessible route required by 10.3.2(1) shall include the features specified in 10.3.1 (1). (4)–(9), (11)-(15), and (17)-(19).

(3) Where technical infeasibility in existing stations requires the accessible route to lead from the public way to a paid area of the transit system, an accessible fare collection system, complying with 10.3.1(7), shall be provided along such accessible route.

(4) In light rail, rapid rail and commuter rail key stations, the platform or a portion thereof and the vehicle floor shall be coordinated so that the vertical disserence, measured when the vehicle is at rest, within plus or minus 1-1/2 inches under all normal passenger load conditions, and the horizontal gap. measured when the vehicle is at rest. is no greater than 3 inches for at least one door of each vehicle or car required to be accessible by 49 CFR part 37.

EXCEPTION 1: Existing vehicles retrofitted to meet the requirements of 49 CFR 37.93 (onecar-per-train rule) shall be coordinated with the platform such that, for at least one door, the vertical difference between the vehicle floor and the platform, measured when the vehicle is at rest with 50% normal passenger capacity. is within plus or minus 2 inches and the horizontal gap is no greater than 4 inches.

EXCEPTION 2: ‘Where it is not structurally or operationally feasible to meet the horizontal gap or vertical disserence requirements, minihigh platforms, car-borne or platform mounted lists, ramps or bridge plates, or similar manually deployed devices, meeting the applicable requirements of 36 CFR Part 1192 shall sussice.

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A4.2 Space Allowances and reach Ranges

Because of these monttoring features, super- A4.2 Space Allowances and Reach vised automatic sprinkler systems have a high Ranges. level of satisfactory performance and response

to fire conditions. A4.2.1 Wheelchair Passage Width. A4.1.3(10) If an odd number of drinking (1) Space Requirements for Wheelchairs. fountains ts provided on a floor, the requirement Many persons who use wheelchairs need a tn 4.1.3(10(b) may be met by roundtng down 30 in (760 mm) clear opening width for doorthe odd number to an even number and calcu- ways, gates, and the like, when the latter are lating 50% of the even number. When more than entered head-on. If the person is unfamiliar one drinking fountain on a floor is required to with a building. if competing traffic is heavy, comply with 4.15, those fountains should be if sudden or frequent movements are needed, dispersed to allow wheelchatr users convenient or if the wheelchair must be turned at an access of example.orgesoy solo, opening, then greater clear widths are needed. a convention center that has water fountains at For most situations, the addition of an inch of several locations on a floor, the accessible water leeway on either side is sufficient. Thus, a fountains should be located so that wheelchair minimum clear width of 32 in (815 mm) will users do not have to travel a greater distance provide adequate clearance. However, when than other people to use a drinking sountain. an opening or a restriction in a passageway is

more than 24 in (610 mm) long, it is essentially A4.1.3(17so. In addition to the requirements of a passageway and must beatieast 36 in section 4.1.3(17)(b), the trastallation of additional (915 mm) wide. volume controls is encouraged. Volume controls

may be trustalled on any telephone. (2) Space Requirements for Use of Walking

Aids. Although people who use walking aids A4.1.3(19)(a) Readily removable or solding can maneuver through clear width o seating units may be trustalled th lieu of provid- of 32 in (815 mm), they need 36 in (91.5 mm) tng an open space for wheelchatr users. Folding wide passageways and walks for comfortable seating units are usually two fixed seats that gaits. Crutch tips, often extending down at a can be easily folded truto a fixed center bar to wide angle, are a hazard in narrow passageallow for one or two open spaces for wheelchair ways where they might not be seen by other users when necessary. These units are more pedestrians. Thus, the 36 in (91.5 mm) width easily adapted than removable seats which provides a safety allowance both for the person generally require the seat to be removed in with a disability and for others. advance by the facility management.

Sign seating with (3) Space Requirements for Passing. AbleEither a or a marker placed on UT) bodied in winter cl o

orf. arm rests is by persons othing, walking this section. Consideration should be given for ensuring identification of such seats tri a darkened theater. For example, a marker which contrasts slight on dark or dark on light) and which also reflects light could be placed on the side of such seating so as to be visible tra a lighted auditorturn and also to reflect light from a slashlight.

A4.1.6 Accessible Buildings: L Alterations. o. Flg. Al altered, it is preferable that those entrances Minimum Passage Width for One Wheelchair being altered be made accessible to the extent J. o and One Ambulatory Person

A2

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A4.2 space anowanees and Reach Ranges

NOTE: Footrests may extend further for tall people

Fig. A3
Dimensions of Adult-Sized Wheelchairs

ahead with arms swinging, need 32 in (81.5 mm) of width, which includes 2 in (50 mm) on either side for sway, and another 1 in (25 mm) tolerance on either side for clearing nearby objects or other pedestrians. Almost all wheelchair users and those who use walking aids can also manage within this 32 in (815 mm) width for short distances. Thus, two streams of traffic can pass in 64 in (1625 mm) in a comfortable flow. Sbcty inches (1525 mm) provides a minimum width for a somewhat more restricted flow. If the clear width is less than 60 in (1525 mm), two wheelchair users will not be able to pass but will have to seek a wider place for passing. Forty-eight inches (1220 mm) is the minimum width needed for an ambulatory person to pass a nonambulatory or semi-ambulatory person. Within this 48 in (1220 mm) width, the ambulatory person will have to twist to pass a wheelchair user, a person with a service antmal, or a

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