Illinois Administrative Code › Title 92 - TRANSPORTATION › Part 435 - MINIMUM SAFETY STANDARDS FOR CONSTRUCTION OF MULTIFUNCTION SCHOOL ACTIVITY BUSES › Appendix J - Ventilation through Windshield Wipers

Current through Register Vol. 48, No. 28, July 12, 2024
a) VENTILATION
The body shall be equipped with a controlled
				ventilation system of sufficient capacity to maintain a satisfactory ratio of
				outside to inside air under cool and cold operating conditions without opening
				of windows. With a powered ventilation system, air outlet openings shall be
				located, sized, and manufactured so that, with doors and windows closed, a
				positive pressure is maintained in the driver and passenger spaces to lessen
				chances of dangerous gas entering those spaces. Fresh air inlets shall be
				located so as to minimize entrance of either dangerous engine gas or obnoxious
				engine fumes.
b) WARNING DEVICES
AGENCY NOTE: The bus purchaser may elect to install
				the warning devices after the bus is purchased.
1) Emergency warning devices are required to be
				carried on any second division motor vehicle weighing more than 8,000 pounds
				and operated upon any highway outside an urban district. The warning devices
				must be securely stored.
The warning devices required for use when lighted
				lamps are required (see Section 12-201(b) of the Illinois Vehicle Equipment
				Law) shall consist of:
A) At least three liquid-burning flares and three
				red-burning 15-minute fusees; or
B) Three red electric lanterns; or
C) Three portable red emergency reflectors that meet
				FMVSS No. 125.
2) In addition, the following warning devices are
				also required for use when lighted lamps are not required (see Section
				12-201(b) of the Illinois Vehicle Equipment Law):
A) Two red cloth flags (not less than 12 inches
				square with standards to support flags); or
B) Two portable emergency reflectors that meet FMVSS
				No. 125. (The reflectors in subsection (b)(1)(C) qualify for this option.) (See
				Section 12-702(a) and (c) of the Illinois Vehicle Equipment Law.)
c) WHEELS
1) Housings
Each opening shall allow for unimpeded wheel and
				tire service and removal. Each rear wheel housing shall provide the clearance
				recommended in SAE J683 (August 1985) for installation and use of tire chains
				on the dual or single tires installed on the rear wheels.
2) Rim
Wheels and rims may be black, gray or manufacturer's
				option.
3) Tires
Must meet
				49
				CFR 571.120. A spare tire is the purchaser's
				option. If the spare tire is carried inside, it shall be securely mounted so
				that it in no way interferes with the passenger seating accommodations, the
				emergency door operations or aisle space.
Tires on same axle must be of same
				construction.
A mixture of regular and mud-and-snow treads must be
				the same on both sides of the axle.
When radial and conventional (i.e., bias) tires are
				both used, one of the following two requirements shall be met:
A) On vehicles with one single wheel axle and one or
				more dual wheel axles, radial tires shall be used on the steering (i.e., front)
				axle only.
B) On vehicles having two single wheel axles, radial
				tires shall be used on the rear axle only.
d) WINDOWS
1) All applicable provisions of
				49 CFR
				571.205 apply to the optional laminated
				safety glass and also to any plastic materials used in a multiple glazed unit.
Glazing shall be marked as follows pursuant to
				49 CFR
				571.205:
A) Windshield - "AS 1" Glass
B) Driver's Window - "AS 1" Glass or "AS 2"
				Glass
C) Driver's door - "AS 1" Glass or "AS 2"
				Glass
D) All other locations - "AS 1" Glass, "AS 2" Glass,
				or "AS 3" Glass.
2) Emergency (Also see EMERGENCY EXITS)
When the emergency door is located on the left side,
				a rear emergency window shall be provided. Minimum dimensions are 16 inches
				high and 48 inches wide. Designed to be opened from the inside or the outside.
				Hinged on top, designed and operated to insure against accidental closing in an
				emergency. Inside handle shall provide for quick release. Outside handle shall
				be nondetachable and nonhitchable. When locked or not fully latched, window
				shall actuate alarm audible and visible to driver. No cutoff switch
				allowed.
Optional emergency windows are allowed. They must be
				labeled "Emergency Exit" in letters at least two inches high, of a color that
				contrasts with its background, located at the top of or directly above the
				window on the inside surface of the bus.
Optional emergency windows must be equipped with an
				audible alarm activated when window is locked or not fully latched.
3) Rear
All rear glazing shall be the fixed type. No portion
				of any rear window shall display any lettering, numerals or symbols that may
				obstruct the driver's view.
4) Side
Each side window shall provide unobstructed
				emergency opening at least 9 inches high and 22 inches wide, obtained either by
				lowering window or by use of knock-out type split sash.
Window latches must be in proper working
				order.
5) Windshield
Shall be installed between front corner posts and
				must be unobstructed. Non-reflective tinted film may be used along the
				uppermost portion of the windshield but must not extend more than six inches
				down from the top of the windshield. (See Sections 12-501 and 12-503 of the
				Illinois Vehicle Equipment Law.) Windshield shall be slanted to reduce
				glare.
e) WINDSHIELD WASHER
Windshield washer shall effectively clean entire
				area covered by both wipers.
f) WINDSHIELD WIPERS
Wipers shall be either two speed or variable speed
				with nonglare arms and blades. Blades need not be individually powered.