KKK-B-1579B
3.5.5.2 Emergency door. Emergency door shall be sedan-type, located for convenient
egress, and equipped with a slide-bar, cam operated lock with readily operable interior handle. A
permanently installed handle shall be provided for opening the emergency door from outside the
bus. A red emergency exit identification light (see 3.4.2.5.2) shall be installed on the emergency
exit header. The header shall be marked with the following in block letters not less than 2 inches
high "EMERGENCY DOOR." A warning light, wired through the ignition switch, shall be
installed on dash or panel.
3.5.6 Windshield. A windshield affording maximum practical driver vision shall be
installed at a slope sufficient to minimize external glare or reflections from inside the body.
Glass conforming to Federal Motor Vehicle Safety Regulation No. 205 shall be used in the
windshield. A step and a grab handle shall be provided on each side of the bus to facilitate
cleaning the windshield.
3.5.7 Windows. Windows shall be provided with fingertip control, permitting ready
opening and adjustment to various desired openings. Windows shall be rattle-proof and when
closed, rainproof, waterproof, and windproof. Driver's window(s) shall permit use for signaling
and ventilation. All windows shall be fitted with locking devices. The top edge of the glass area
in the side windows, if furnished, shall be not less than 57 inches above the aisle floor level.
*
3.5.7.1 Tinting. When air conditioning is furnished (see 3.5.13), tinted, heat absorbing
safety window glass window(s) and windshield shall be in accordance with the manufacturer's
standard for tinted glass. The side windows in the passenger area shall be tinted to double
density allowing not more than 55 percent light transmission. The rear window(s) shall be tinted
to quadruple density allowing not more than 40 percent light transmission. For passenger area
side and rear windows, safety tinted glass shall be used.
3.5.8 Seating. Seats for type I, II, III and IV buses shall be the manufacturer's standard
34 - 36 inch width, two passenger type with a seat cushion free depth of not less than 17 inches.
Seats for type V, VI and VII buses shall be the manufacturer's standard 39-inch width,
(except left hand rear seat may be reduced to comply with Federal Motor Vehicle Safety
Standards) three passenger type with a seat cushion free depth of not less than 15 inches. Seat
cushion free depth shall be measured from a vertical plane at the front edge of cushion to a
vertical plane at the most forward part of the seat back cushion. Seat cushions shall be solid
foam padding tapering from a minimum of 5 inches at the front to 3 inches at the rear or not less
than 2 inches of padding on a spring base. Seat backs shall be shaped and padded to assure
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