Standard Bus Procurement Guidelines - APTAStandards.com
Standard Bus Procurement Guidelines - APTAStandards.com Standard Bus Procurement Guidelines - APTAStandards.com
Standard Bus Procurement Guidelines It shall be possible to open and close either passenger door when the bus loaded to GVWR is not knelt and parked with the tires touching an 8-inch-high curb on a street sloping toward the curb so that the street side wheels are 5 inches higher than the right side wheels. 5.4.5.3.7 Closing Force Closing door edge speed shall not exceed 19 inches per second. Power close rear doors shall be equipped with a sensitive edge or other obstruction sensing system such that if an obstruction is struck by a closing door edge, the doors will stop and/or reverse direction prior to imparting a 10-pound force on 1 square inch of that obstruction. Doors closed by return spring or counterweight-type device need not be equipped with an obstruction sensing device but shall be capable of being pushed to the point where the door starts to open with a force not to exceed 20 pounds applied to the center edge of the forward door panel. Whether or not the obstruction sensing system is present or functional it shall be possible to withdraw a 1-1/2 inch diameter cylinder from between the center edges of a closed and locked door with an outward force not greater than 35 pounds. 5.4.5.3.8 Actuators Door actuators shall be adjustable so that the door opening and closing speeds can be independently adjustable to satisfy the requirements of Section 5.4.6.1.4. Actuators and the complex door mechanism shall be concealed from passengers but shall be easily accessible for servicing. 5.4.5.3.9 Emergency Operation In the event of an emergency, it shall be possible to open the doors manually from inside the bus using a force of no more than 25 pounds after actuating an unlocking device at each door. The unlocking devices shall be clearly marked as an emergency-only device and shall require two distinct actions to actuate. The door emergency unlocking device shall be accessible from the stepwell areas. When this emergency device is actuated, the door interlock throttle system shall return the engine to idle and the door interlock brake system shall apply to stop the bus. Locked doors shall require a force of more than 100 pounds to open manually. When the locked doors are manually forced to open, damage shall be limited to the bending of minor door linkage with no resulting damage to the doors, engines, and complex mechanism. Technical Specifications 170 10/18/07
Standard Bus Procurement Guidelines 5.4.5.4 ACCESSIBILITY PROVISIONS 5.4.5.4.1 General The design and construction of the bus shall be in accordance with all requirements defined in 49 CFR, Part 38, Subpart B: ADA Accessibility Specifications for Transportation Vehicles - Buses, Vans and Systems. Space and body structural provisions shall be provided at the front or rear door of the bus to accommodate the wheelchair loading elevator. Specific requirements, including the number of wheelchairs to be accommodated, the tiedown and securement devices, and fold-down seats, are provided in attachments to Part 5: Technical Specifications. Prior to submission of bid, the Contractor shall provide a plan, including layout drawings for entry, maneuvering, parking, and exiting of wheelchair passengers, to show compliance with ADA regulations. 5.4.5.4.2 Loading System A lift system shall provide ingress and egress quickly, safely, comfortably, and in a forward direction for a passenger in a wheelchair from the street level or curb. When the system is not in use, the steps and passageway shall appear normal, and no portion of the stepwell shall move when the doors open. The controls shall be simple to operate with no complex phasing operations required, and the loading operation shall be under the surveillance and complete control of the operator. If the lift device and controls are at the rear doors, a switch shall be provided in the operator's area to disarm the lift system. The bus shall be prevented from moving during the loading or unloading cycle by a throttle and brake interlock system. The wheelchair loading system shall not present a hazard, nor inconvenience any passenger. The device shall be inhibited from retracting or folding when a passenger is on the platform. A passenger on the lift platform shall be able to easily obtain support during the entire loading or unloading operation by grasping the passenger assist located on the doors or other assists provided for this purpose. The loading platform shall extend no less than 18 inches outward of the bus, with the transition from the sidewalk to the loading device not exceeding 1/2 inch, and it shall be ramped to the extent practicable. The platform shall be designed to protect the device from damage and persons on the sidewalk from injury during the extension and lowering phases of operation. The loading platform shall be covered with a replaceable or renewable, nonskid material and shall be fitted with devices to prevent the wheelchair from rolling off the ends or sides during loading or unloading. When the elevator platform is rising, no hazard shall be presented to passengers between the platform and the bottom edge of fixed step risers and other parts of the lift mechanism. When fully raised, the transition from the platform to the floor shall be smooth. Deployment or storage of the lift shall require no more than 5 seconds. The time required to perform other phases of the loading or unloading operation shall not exceed 15 seconds. The device shall function without failure or adjustment for 500 cycles or 5,000 miles in all weather conditions on the design operating profile when activated once during the idle phase. A manual override system shall permit unloading a wheelchair and storing the device in the event of a primary power failure. Hydraulic systems incorporated in the lift mechanism shall comply with the requirements defined in Section 5.2.2.2.3 of Part 5: Technical Specifications. Lights in compliance with ADA requirements shall be provided above the doorway equipped with the wheelchair elevator to floodlight the loading area. The lamps shall illuminate when the elevator is in operation and shall illuminate the street surface to a level of no less than 1 foot-candle for a distance of 3 feet outward from the lowest steptread edge. 5.4.5.4.3 Wheelchair Accommodations Technical Specifications 171 10/18/07
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<strong>Standard</strong> <strong>Bus</strong> <strong>Procurement</strong> <strong>Guidelines</strong><br />
It shall be possible to open and close either passenger door when the bus loaded to GVWR is not knelt<br />
and parked with the tires touching an 8-inch-high curb on a street sloping toward the curb so that the<br />
street side wheels are 5 inches higher than the right side wheels.<br />
5.4.5.3.7 Closing Force<br />
Closing door edge speed shall not exceed 19 inches per second. Power close rear doors shall be<br />
equipped with a sensitive edge or other obstruction sensing system such that if an obstruction is struck<br />
by a closing door edge, the doors will stop and/or reverse direction prior to imparting a 10-pound force<br />
on 1 square inch of that obstruction. Doors closed by return spring or counterweight-type device need<br />
not be equipped with an obstruction sensing device but shall be capable of being pushed to the point<br />
where the door starts to open with a force not to exceed 20 pounds applied to the center edge of the<br />
forward door panel. Whether or not the obstruction sensing system is present or functional it shall be<br />
possible to withdraw a 1-1/2 inch diameter cylinder from between the center edges of a closed and<br />
locked door with an outward force not greater than 35 pounds.<br />
5.4.5.3.8 Actuators<br />
Door actuators shall be adjustable so that the door opening and closing speeds can be independently<br />
adjustable to satisfy the requirements of Section 5.4.6.1.4. Actuators and the <strong>com</strong>plex door mechanism<br />
shall be concealed from passengers but shall be easily accessible for servicing.<br />
5.4.5.3.9 Emergency Operation<br />
In the event of an emergency, it shall be possible to open the doors manually from inside the bus using a<br />
force of no more than 25 pounds after actuating an unlocking device at each door. The unlocking<br />
devices shall be clearly marked as an emergency-only device and shall require two distinct actions to<br />
actuate. The door emergency unlocking device shall be accessible from the stepwell areas. When this<br />
emergency device is actuated, the door interlock throttle system shall return the engine to idle and the<br />
door interlock brake system shall apply to stop the bus.<br />
Locked doors shall require a force of more than 100 pounds to open manually. When the locked doors<br />
are manually forced to open, damage shall be limited to the bending of minor door linkage with no<br />
resulting damage to the doors, engines, and <strong>com</strong>plex mechanism.<br />
Technical Specifications 170 10/18/07
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