Art. 882.04 Directional Louver
882.04 Basis of Payment. This work will be paid for at the contract unit price
per each for TRAFFIC SIGNAL BACKPLATE, of the type specified, and of the particular kind of material, when specified. SECTION 883. DIRECTIONAL LOUVER
883.01 Description. This work shall consist of furnishing and installing a
directional louver for a 12 in. (300 mm) signal lens in the signal heads.
883.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Directional Louver .............................................................................. 1078.04 CONSTRUCTION REQUIREMENTS
883.03 Installation. The directional louver shall provide an angle of cutoff on
each side of the center axis of the light beam as follows. Type A 0 to 6 degrees Type B 7 to 10 degrees Type C 11 to 14 degrees The directional louver shall be installed inside the signal visor in front of the signal lens and secured in place with a minimum of two metal screws.
883.04 Basis of Payment. This work will be paid for at the contract unit price
per each for DIRECTIONAL LOUVER, of the type specified. When used with a 8 in. (200 mm) lens, this work will be paid for at the contract unit price per each for DIRECTIONAL LOUVER, of the type specified. DETECTION SECTION 885. INDUCTIVE LOOP DETECTOR
885.01 Description. This work shall consist of furnishing and installing an
inductive loop detector.
885.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Inductive Loop Detector ..................................................................... 1079.01 CONSTRUCTION REQUIREMENTS
Referenced in this section
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 757–757 of 1,217. View official source ↗