Request for Proposal [insert date]
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- Driver’s Side Window
- Side Windows
- Emergency Exit (Egress) Configuration
- Configuration
GlazingThe windshield glazing material shall have a ¼ in. nominal thickness laminated safety glass conforming to the requirements of ANSI Z26.1 Test Grouping 1A and the Recommended Practices defined in SAE J673. Default
Shaded Band The upper portion of the windshield above the driver’s field of view shall have a dark, shaded band with a minimum luminous transmittance of 5 percent when tested in accordance to ASTM D-1003. Alternative Partial band required to allow view for camera and mirror viewing. Alternative No band required. Default Two-piece windshield. Alternative One-piece windshield. Driver’s Side WindowThe driver’s side window shall be the sliding type, requiring only the rear half of sash to latch upon closing, and shall open sufficiently to permit the seated operator to easily adjust the street-side outside rearview mirror. When in an open position, the window shall not rattle or close during braking. This window section shall slide in tracks or channels designed to last the service life of the bus. The operator’s side window shall not be bonded in place and shall be easily replaceable. The glazing material shall have a single-density tint. The driver’s view, perpendicular through operator’s side window glazing, should extend a minimum of 33 in. (840 mm) to the rear of the heel point on the accelerator, and in any case must accommodate a 95th percentile male operator. The view through the glazing at the front of the assembly should begin not more than 26 in. (560 mm) above the operator’s floor to ensure visibility of an under-mounted convex mirror. Driver’s window construction shall maximize ability for full opening of the window. The driver’s side window glazing material shall have a ¼ in. nominal thickness laminated safety glass conforming with the requirements of ANSI Z26.1-1996 Test Grouping 2 and the Recommended Practices defined in SAE J673. The design shall prevent sections from freezing closed in the winter. Light transmittance shall be 75 percent on the glass area below 53 in. from the operator platform floor. On the top fixed over bottom slider configuration, the top fixed area above 53 in. may have a maximum 5 percent light transmittance. Default Standard Driver’s Side Window, Traditional Frame [Agency to choose from the following options.] • full slider • egress • non-egress • top fixed over bottom slider • egress
• non-egress Alternative Hidden Frame (Flush “Euro-look”) Driver’s Side Window [Agency to choose from the following options.] • full slider • egress • non-egress • top fixed over bottom slider • egress
• non-egress Alternative Quick Change Operator’s Side Window Glazing in the window assembly shall be replaced without removing the window from its installed position on the bus or manipulation of the rubber molding surrounding the glazing. The glazing shall be held in place mechanically by a formed metal extruded ring constructed to last the life of the vehicle.
Standard Driver’s Side Window, Traditional Frame [Agency to choose from the following options.] • full slider • egress • non-egress • top fixed over bottom slider • egress
• non-egress Side WindowsConfigurationSide windows shall not be bonded in place, but shall be easily replaceable without disturbing adjacent windows and shall be mounted so that flexing or vibration from engine operation or normal road excitation is not apparent. All aluminum and steel material will be treated to prevent corrosion. Emergency Exit (Egress) ConfigurationDefault Minimum Egress All side windows shall be fixed in position, except as necessary to meet the emergency escape requirements.
Maximum Egress Every window shall be capable of being made an egress window.
Standard Passenger Side Window Configurations [Agency to choose from the following options.] • openable windows with inward-opening transom panels • openable windows with sliding transom panels • openable windows with a fixed transom panel and sliding lower panels • openable windows with full-height sliding panels • hidden frame (flush “Euro-look”) • full fixed • openable windows with inward-opening transom panels. Alternative Quick Change Passenger Side Windows Glazing in the window assembly shall be replaced without removing the window from its installed position on the bus or manipulation of the rubber molding surrounding the glazing. The glazing shall be held in place mechanically by a formed metal extruded ring constructed to last the life of the vehicle.
Traditional Frame [Agency to choose from the following options.] • full fixed • openable windows with inward-opening transom panels • openable windows with sliding transom panels • openable windows with a fixed transom panel and sliding lower panels • openable windows with full-height sliding panels Alternative Hidden Frame (Seamless) [Agency to choose from the following options.] • full fixed • openable windows with inward-opening transom panels
ConfigurationAlternative Fixed Side Windows All side windows shall be fixed in position, except as necessary to meet the emergency escape requirements.
Operable Side Window Configurations All side windows, except windows in passenger doors and those smaller than 500 sq in., shall have window panels that are operable by passengers. Operable window panels shall be equipped with latches that secure the window in the fully open and fully closed positions. [Agency shall then specify one of the following options.] Alternative Operable Windows with Inward-Opening Transom Panels (Fixed Bottom, Tip-In Top) Each operable side window shall incorporate an upper transom portion. The transom shall be between 25 and 35 percent of the total window area. The lower portion of the window shall be fixed. The transom portion shall be hinged along the lower edge and open inward.
Operable Windows with Sliding Transom Panels Each operable side window shall incorporate an upper transom portion. The transom shall be between 25 and 35 percent of the total window area. The lower portion of the window shall be fixed. The transom portion shall consist of two horizontally sliding panels.
Operable Windows with a Fixed Transom Panel and Sliding Lower Panels (Top Fixed, Bottom Slide) Each operable side window shall incorporate an upper transom side. The transom shall be between 25 and 35 percent of the total window area. The transom portion of the window shall be fixed. The lower portion shall consist of two horizontally sliding panels.
Operable Windows with Operable Transom Panel and Sliding Lower Panels Each operable side window shall incorporate an upper transom portion. The transom shall be between 25 and 35 percent of the total window area. The transom portion of the window shall be hinged at lower edge and open inward. The lower portion shall consist of two horizontally sliding panels.
Operable Windows with Full-Height Sliding Panels Each operable side window shall consist of two full-height horizontally sliding panels. All side windows shall be easily replaceable without disturbing adjacent windows and shall be mounted so that flexing or vibration from engine operation or normal road excitation is not apparent. The windows shall be designed and constructed to enable a mechanic to remove and replace one window in less than 15 minutes.
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