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fl-11, <br />I <br />4 <br />N <br />M <br />�I <br />1 3 <br />>i <br />Fi�", <br />11 I,. <br />I <br />l <br />Either cracking or significant deformation of the marker at any load <br />less than 5,000 pounds [20 kN] will constitute failure. <br />(5) Adhesion: Use bituminous adhesive materials recommended by the <br />marker manufacturer for bonding the markers to the pavement. The adhesive used shall be <br />one of the products included on the QPL. <br />(6) Removability: Ensure that the pavement marker is removable from asphalt <br />pavement and portland cement concrete pavement intact or in substantially large pieces, <br />either manually or by mechanical devices at temperatures above 40 °F [4 1C], and without <br />the use of heat, grinding or blasting. <br />(7) Replacement Requirements: Replace markers any time after installation <br />when more than two markers in a skip, or more than three consecutive markers on an <br />edgeline are missing at no expense to the Department. Replace all failed markers in a <br />timely manner as directed by the Engineer. <br />990 -7 Temporary Glare Screen. <br />990 -7.1 Design and Installation: Meet the following requirements: <br />(a) Glare screen units shall be manufactured in lengths such that when <br />installed the joint between any one modular unit will not span barrier sections. Color shall <br />be green, similar to Federal Color Standard 595 - 34227. <br />(b) Blades, rails and /or posts shall be manufactured from polyethylene, <br />fiberglass, plastic, polyester or polystyrene, and be ultraviolet stabilized and inert to all <br />normal atmospheric conditions and temperature ranges found in Florida. <br />(c) For paddle type designs, the blade width shall not be more than 9 inches <br />[225 mm]. Blades or screen for individual or modular systems shall be 24 to 30 inches <br />[600 to 750 mm] high and capable of being locked down at an angle and spacing to <br />provide a cut -off angle not less than 20 degrees. <br />(d) For glare screen mounted on temporary barrier wall, a strip (6 by <br />12 inches) [(150 by 300 mm)] of reflective sheeting as specified in 994 -2 shall be placed <br />on a panel, centered in each barrier section (at a spacing not to exceed 15 feet [4.5 m]) <br />and positioned in such a manner as to permit total right angle observation by parallel <br />traffic. When glare screen is utilized on temporary concrete barriers, warning lights will not <br />be required. <br />(e) Prior to approval an impact test shall be performed by the manufacturer <br />to verify the safety performance of the proposed system. The minimum impact strength of <br />the posts, blades, rail and the barrier attachment design shall be sufficient to prevent the <br />unit from separating from the barrier when impacted by a 3 inches [88.9 mm] outside <br />diameter steel pipe traveling at 30 mph [48 km /h] and impacting mid- height on the glare <br />screen assembly. <br />(f) All hardware shall be galvanized in accordance with ASTM A 123 or <br />stainless steel in accordance with AISI 302/305. <br />Alternative designs for temporary glare screen may be submitted as a <br />Value Engineering Change Proposal (VECP) in accordance with 4 -3.9. <br />990 -7.2 Certification: Furnish certified test reports including all applicable test <br />methods stating that the materials comply with the requirements of this specification. <br />990 -7.3 Qualified. Products List: Manufactured glare screen systems may be <br />modular or individual units listed on the QPL. <br />March 2007 01000 -207 03- 4122.D <br />