In row seating, the companion seat shall be located to provide shoulder alignment with the wheelchair space occupant. The shoulder of the wheelchair space occupant is considered to be 36 inches (915 mm) or more from the front and 12 inches (305 mm) or more from the rear of the wheelchair space. The floor surface for the companion seat shall be at the same elevation as the wheelchair space floor surface.
Exception: Companion seat alignment shall not be required in tiered seating that includes dining surfaces or work surfaces.
Wheelchair spaces required to provide a line of sight over standing spectators shall comply with Section 802.9.2.
The height of the floor surface at the wheelchair space location shall comply with Table 802.9.2.2. Interpolations shall be permitted for riser heights that are not listed in the table.
REQUIRED WHEELCHAIR SPACE LOCATION ELEVATION OVER STANDING SPECTATORS
|Riser height||Minimum height of the wheelchair space location based on row spacing1|
|Rows less than 33 inches (840 mm)2||Rows 33 inches |
(840 mm) to 44 inches (1120 mm)2
|Rows over |
44 inches (1120 mm)2
|0 inch (0 mm)||16 inches (405 mm)||16 inches (405 mm)||16 inches (405 mm)|
|4 inches (100 mm)||22 inches (560 mm)||21 inches (535 mm)||21 inches (535 mm)|
|8 inches (205 mm)||31 inches (785 mm)||30 inches (760 mm)||28 inches (710 mm)|
|12 inches (305 mm)||40 inches (1015 mm)||37 inches (940 mm)||35 inches (890 mm)|
|16 inches (405 mm)||49 inches (1245 mm)||45 inches (1145 mm)||42 inches (1065 mm)|
|20 inches (510 mm)3||58 inches (1475 mm)||53 inches (1345 mm)||49 inches (1245 mm)|
|24 inches (610 mm)||N/A||61 inches (1550 mm)||56 inches (1420 mm)|
|28 inches (710 mm)4||N/A||69 inches (1750 mm)||63 inches (1600 mm)|
|32 inches (815 mm)||N/A||N/A||70 inches (1780 mm)|
|36 inches (915 mm) and higher||N/A||N/A||77 inches (1955 mm)|
1The height of the wheelchair space location is the vertical distance from the tread of the row of seats directly in front of the wheelchair space location to the tread of the wheelchair space location.
2The row spacing is the back-to-back horizontal distance between the rows of seats in front of the wheelchair space location.
3Seating treads less than 33 inches (840 mm) in depth shall not be permitted with risers greater than 18 inches (455 mm) in height.
4Seating treads less than 44 inches (1120 mm) in depth shall not be permitted with risers greater than 27 inches (685 mm) in height.
5Table 802.9.2.2 is based on providing a spectator in a wheelchair a line of sight over the head of a spectator two rows in front of the wheelchair space location using average anthropometrical data. The table is based on the following calculation: [(2X+34)(Y-2.25)/X]+(20.2-Y) where Y is the riser height of the rows in front of the wheelchair space location and X is the tread depth of the rows in front of the wheelchair space location. The calculation is based on the front of the wheelchair space location being located 12 inches (305 mm) from the back of the seating tread directly in front and the eye of the standing spectator being set back 8 inches (205 mm) from the riser.
The minimum number of wheelchair space locations shall be in accordance with Table 802.10. Wheelchair space locations shall be dispersed in accordance with Sections 802.10.1, 802.10.2 and 802.10.3. In addition, wheelchair space locations shall be dispersed in accordance with Section 802.10.4 in spaces utilized primarily for viewing motion picture projection. Once the required number of wheelchair space locations has been met, further dispersion shall not be required.
WHEELCHAIR SPACE LOCATION DISPERSION
|Total seating in Assembly Areas||Minimum required number of wheelchair space locations|
|Up to 150||1|
|151 to 500||2|
|501 to 1000||3|
|1001 to 5,000||3, plus 1 additional space for each 1,000 seats or portions thereof above 1,000|
|5,001 and over||7, plus 1 additional space for each 2,000 seats or portions thereof above 5,000|
Wheelchair space locations shall be dispersed horizontally to provide viewing options. Where seating encircles the stage or field, in whole or in part, horizontal dispersion shall include the entire seating area. Two wheelchair spaces shall be permitted to be located side-by-side.
Exception: Horizontal dispersion shall not be required in assembly areas with 300 or fewer seats if the wheelchair space locations are located within the 2nd and 3rd quartile of the row length. Intermediate aisles shall be included in determining the total row length. If the row length in the 2nd and 3rd quartile of the row is insufficient to accommodate the required number of companion seats and wheelchair spaces, the additional companion seats and wheelchair spaces shall be permitted to extend into in the 1st and 4th quartile of the row.
Wheelchair space locations shall be dispersed at a variety of distances from the event to provide viewing options.
1. In bleachers, wheelchair space locations provided only in rows at points of entry to bleacher seating shall be permitted.
2. Assembly areas utilized for viewing motion picture projections with 300 seats or less shall not be required to comply with Section 802.10.2.
3. Assembly areas with 300 seats or less other than those utilized for viewing motion picture projections shall not be required to comply with Section 802.10.2 where all wheelchair space locations are within the front 50 percent of the total rows.
Wheelchair space locations shall be located in accordance with one of the following:
Where a sign language interpreter station is located with a permanent wall less than 10 feet (3050 mm) behind the sign language interpreter station, the permanent wall to a height of 96 inches (2440 mm) from the finish floor shall be considered as a backdrop. The backdrop shall provide a flat, smooth surface with a monochromatic, low-luster finish treatment.
Exception: The wall shall not be required to comply with this section where a backdrop with a monochromatic, low luster finish treatment is provided.
In pass-through kitchens where counters, appliances or cabinets are on two opposing sides, or where counters, appliances or cabinets are opposite a parallel wall, clearance between all opposing base cabinets, countertops, appliances, or walls within kitchen work areas shall be 40 inches (1015 mm) minimum. Pass-through kitchens shall have two entries.
In kitchens enclosed on three contiguous sides, clearance between all opposing base cabinets, countertops, appliances, or walls within kitchen work areas shall be 60 inches (1525 mm) minimum.
Exception: U-shaped kitchens with an island complying with Section 804.2.1.
Exception: Spaces that do not provide a cooktop or conventional range shall not be required to provide an accessible work surface.
Bus route identification signs shall have visual characters complying with Sections 703.2.2, 703.2.3, and 703.2.5 through 703.2.8. In addition, bus route identification numbers shall be visual characters complying with Section 703.2.4.
Exception: Bus schedules, timetables and maps that are posted at the bus stop or bus bay shall not be required to comply with Section 805.4.
Rail platforms shall not exceed a slope of 1:48 in all directions.
Exception: Where platforms serve vehicles operating on existing track or track laid in existing roadway, the slope of the platform parallel to the track shall be permitted to be equal to the slope (grade) of the roadway or existing track.
Lists of stations, routes and destinations served by the station that are located on boarding areas, platforms or mezzanines shall have visual characters complying with Section 703.2. A minimum of one sign with raised characters and braille complying with Sections 703.3 and 703.4 shall be provided on each platform or boarding area to identify the specific station.
Where provided, escalators shall have a 32-inch (815 mm) minimum clear width, and shall comply with Requirements 184.108.40.206.6-Step Demarcations, and 220.127.116.11.5-Flat Steps of ASME A17.1/CSA B44 listed in Section 106.2.8.
Exception: Existing escalators shall not be required to comply with Section 805.9.
Where audible emergency alarm systems are provided to serve the occupants of cells, visible alarms complying with Section 702 shall be provided.
Exception: In cells where inmates or detainees are not allowed independent means of egress, visible alarms shall not be required.
Where provided, each area that is raised or depressed shall provide a turning space.
Exception: Levels of jury boxes not required to contain wheelchair spaces shall not be required to comply with this section.
Within the defined area of each jury box and witness stand, a clear floor space shall be provided.
Exception: In alterations, wheelchair spaces shall not be required to be located within the defined area of raised jury boxes or witness stands and shall be permitted to be located outside these spaces where ramps or platform lifts restrict or project into the means of egress required by the administrative authority.
For each of the octave frequency bands with center frequencies of 500, 1000, and 2000 Hz, the reverberation time (T60) shall not exceed the times specified below:
Reverberation times shall apply to fully-furnished, unoccupied classrooms. Reverberation times shall be field verified via measurements over a minimum 20 dB decay in each octave frequency band in accordance with ASTM E2235 listed in Section 106.2.13.
The Noise Reduction Coefficient (NRC) ratings for floor, wall and ceiling surface finishes shall conform to the following equations:
For a classroom with a volume less than or equal to 10,000 cubic feet (285 m3):
For a classroom with a volume between 10,000 cubic feet (285 m3) and 20,000 cubic feet (565 m3):
NRCFloor = NRC rating of the floor finish material
SFloor = floor area in square feet
NRCCeiling = NRC rating of the ceiling finish material
SCeiling = ceiling area in square feet
NRCWall = NRC rating of the wall acoustical treatment
SWall = wall treatment area in square feet
Volume = room volume in cubic feet
Where a floor, ceiling or wall has multiple surface finishes, the NRC x S product for each surface finish shall be added to the left side of the equation.