Laserfiche WebLink
I <br /> 1 1 6. The loop sealant shall be applied in accordance with the manufacturer's <br /> 2 recommendations. <br /> 3 7. Detector loop wire shall use 14 AWG stranded copper conductors, and shall <br /> I4 conform to IMSA Specification 51-7, with cross-linked polyethylene (XLPE) <br /> 5 insulation encased in a polyethylene outer jacket (PE tube). <br /> 6 8. The area around the conduit stub-out shall be patched with hot mix asphalt <br /> I 7 concrete if it is greater than 2" in width. <br /> 8 9. The sawcuts shall be of uniform depth and any sharp edges, abrasions or <br /> 9 ridges shall be removed prior to placing the wire. <br /> 10 10. The sawcut depth shall be a minimum of 3'/z" and shall provide a minimum <br /> 11 of 2" cover above the loop wires. <br /> 12 11. The sawcut width shall be a minimum of 1/4" for the loop and 3/8" for the <br /> I <br /> 13 <br /> 14 home run. <br /> 12. The sawcut shall be cleaned out with a high pressure water stream and then <br /> 15 dried with compressed air prior to placing the wire. <br /> I16 <br /> 17 13. All splices between the loop wire and the loop lead-in cable shall be soldered <br /> and utilize a splice kit in conformance with Standard Plan 806A, B and C. <br /> 18 14. When the roadway is to be overlaid as a part of the project, the loops shall <br /> I19 be installed prior to the final overlay. <br /> 20 15. Circular loops are standard installations. The Contractor may propose the <br /> 21 use of square or rectangular loops for consideration by the Engineer. <br /> I 22 <br /> 23 <br /> 24 Existing Traffic Loops <br /> 25 The Contractor shall notify the Area Traffic Engineer through the Engineer a <br /> I <br /> 26 minimum of five working days in advance of pavement removal or grinding in areas <br /> 27 with existing loops. <br /> 28 <br /> I <br /> 29 If the Engineer suspects that damage to any loop, not identified in the Plans as being <br /> 30 replaced, may have resulted from Contractor's operations or is not operating <br /> 31 adequately, the Engineer may order the Contractor to perform the field tests specified <br /> I <br /> 32 <br /> 33 in Section 8 20.3(14)D. The test results shall be recorded and submitted to the <br /> Engineer. Loops that fail any of these tests shall be replaced. <br /> 34 <br /> I <br /> 35 <br /> 36 Loops that fail the tests, as described above, and are replaced shall be installed in <br /> accordance with current City of Everett design standards and Standard Drawings, <br /> 37 as determined by the Engineer. <br /> I 38 <br /> 39 If traffic signal loops that fail the tests, as described above, are not replaced and <br /> 40 operational within 48 hours, the Contractor shall install and maintain interim video <br /> 41 detection until the replacement loops are operational. The type of interim video <br /> I <br /> 42 detection furnished shall be approved by the Engineer prior to installation. <br /> 43 <br /> 44 8-20.3(14) Test for Induction Loops and Lead in Cable <br /> I <br /> 45 Section 8-20.3(14)D, Test C, is replaced with the following: <br /> 46 <br /> 47 Test C -The megger test shall be made between the loop circuit and grounding. The <br /> I <br /> 48 resistance shall equal or exceed 500-megohms. <br /> 49 <br /> 50 <br /> I51 <br /> N. BROADWAY TRANSIT IMPROVEMENT PROJECT <br /> STATE FUND#GCB2316; COE WO#3644 129 August 8, 2018 <br />