Reso 2007-1103 - Laserfiche WebLink

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i II11 990 TEMPORARY TRAFFIC CONTROL DEVICES MATERIALS. (REV 7- 27 -05) (FA 8 -9 -05) (1 -06) SECTION 990 (Pages 925 -937) is deleted and the following substituted: SECTION 990 TEMPORARY TRAFFIC CONTROL DEVICES MATERIALS 990 -1 General. The work specified in this Section is the material requirements for Temporary Traffic Control Devices. 990 -2 Reflective Collars for Traffic Cones. For the retroreflective sheeting for the collars, meet the requirements of ASTM D 4956 Table 4, Type III and Table 9, Type VI; excluding 0.1 degree. Provide three certified copies of test reports and certification from the manufacturer that the material furnished meets all requirements above. Use reflective collars for cones included on the Qualified Products List (QPL). 990 -3 Portable Arrow Boards. 990 -3.1 Scope: All portable arrow boards must meet the physical display and operational requirements as described in the MUTCD. Manufacturers seeking approval of their arrow board shall provide a working sample to be evaluated in accordance with these Specifications and certify that the furnished unit meets all requirements specified herein. 990 -3.2 Display Panel and Housing: (a) The display housing assembly shall be weather -tight to protect the panel from the elements. (b) All nuts, bolts, washers and other fasteners shall be of corrosion resistant material. (c) The display assembly shall be equipped with an automatic dimming operational mode capable of a minimum of 50% dimming and a separate manual dimmer switch (d) The display panel background and frame for the display assembly shall be painted flat black and must meet Federal Specification TT -E -489. (e) Display panel and housing shall be designed and constructed to allow the unit to be operated in the displayed position at speeds of 30 mph [50 k /h]. In the down position it shall be designed for speeds of 65 mph [105 k /h], (f) The display panel, when raised in the upright position, will have a minimum height of 7 feet [2.1 m] from the bottom of the panel to the ground, in accordance with the MUTCD. (g) The unit shall have an accessible mechanism to easily raise and lower the display assembly. A locking device shall also be provided to ensure the display panel will remain in the raised or lowered position. 990 -3.3 Arrow Board Matrix: (a) The minimum legibility distance for various traffic conditions are based on the decision -sight distance concept. The minimum legibility distance is the distance at which a driver can comprehend the arrow panel message on a sunny day or a clear night. The arrow panel size that is needed to meet the legibility distance is listed as follows: F'r F_Q March 2007 01000 -200 03- 4122.D