Laserfiche WebLink
DIV <br /> If Ve <br /> �,.T <br /> r �-�$ ' t �h� � 1D4 e r .� " t F r „C 41,a t - a ix - � r .,r <br /> r IDIf f <br /> x >. .. .i ... .. +, ... nat, e .. 2: <br /> .� <br /> � 4 <br /> The marker ' s reflective face shall be completely visible and above the pavement surface <br /> after installation , measured from a line even with the pavement perpendicular to the face of the <br /> marker. <br /> (c) Optical Performance : Ensure that the specific intensity of each white reflecting <br /> surface at 0 . 2 degrees observation angle shall be at least the following when the incident light is <br /> parallel to the base of the marker: <br /> Horizontal Entrance Angle Specific Intensity <br /> 0 deg . 3 <br /> 20 deg. 1 . 2 <br /> For yellow reflectors , the specific intensity shall be 60% of the value for <br /> white . <br /> For red reflectors , the specific intensity shall be 25 % of the value for <br /> white . Reflectivity of all RPM ' S shall not be less than 0 . 2 Specific Intensity ( SI) any time after <br /> installation . <br /> (d) Strength requirements : Markers shall support a load of 5 , 000 pounds . Three <br /> markers per lot or shipment will be randomly tested as follows : <br /> Position the marker base down, between the flat, parallel 0 . 5 inch steel <br /> plates of a compression testing machine . Place on top of the marker, a flat piece of 60 ( Shore A) <br /> durometer rubber, 6 inch by 6 inch by 0 . 37 inch, centered on the marker . Apply the compressive <br /> load through the rubber to the top of the marker at a rate of 0 . 1 inches per minute . <br /> Either cracking or significant deformation of the marker at any load less <br /> than 5 , 000 pounds will constitute failure . <br /> (e) Adhesion : Use bituminous adhesive materials for bonding the markers to the <br /> pavement that meet the requirements of Section 970 and are listed on the QPL. <br /> (f) Removability : Ensure that the pavement marker is removable from asphalt <br /> pavement and portland cement concrete pavement intact or in substantially large pieces , either <br /> manually or by mechanical devices at temperatures above 40 ° F, and without the use of heat, <br /> grinding or blasting . <br /> SUBARTICLE 990 - 6 - 1 (Pages 964 — 965 ) is deleted and the following substituted : <br /> 990-6 . 1 Design and Installation : Meet the following requirements : <br /> (a) Glare screen units shall be manufactured in lengths such that when installed <br /> the joint between any one modular unit will not span barrier sections . Color shall be green, <br /> similar to Federal Color Standard 595 - 34227 . <br /> (b) Blades, rails and/or posts shall be manufactured from polyethylene , fiberglass , <br /> plastic, polyester or polystyrene , and be ultraviolet stabilized and inert to all non-nal atmospheric <br /> conditions and temperature ranges found in Florida . <br /> (c) For paddle type designs , the blade width shall not be more than 9 inches . <br /> Blades or screen for individual or modular systems shall be 24 to 30 inches high and capable of <br /> being locked down at an angle and spacing to provide a cut- off angle not less than 20 degrees . <br /> (d) For glare screen mounted on temporary barrier wall , a strip ( 6 by 12 inches) of <br /> reflective sheeting as specified in 994-2 shall be placed on a panel , centered in each barrier <br /> - 250 - <br /> FPID ( S ) : 423186 - 1 - 58 - 01 <br /> A <br />