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TRAFFIC REGULATIONS 01 5500-5 <br />2. During hours of darkness approved lights shall be included, in proper working <br />order, to illuminate signs and hazards and alert approaching traffic. <br />3. Provide and maintain barricades along all open trenches in contact with <br />traffic. <br />4. No work may begin on any day or at any time before traffic control devices <br />have been placed, test driven and, if required, adjusted and revised. <br />B. Placement: <br />1. Place all traffic control devices in accordance with the Standard Plans and <br />Specifications, the CA MUTCD and approved Traffic Control Plan. <br />2. Adjust locations of devices to suit the conditions and circumstances of each <br />detour situation. In all cases, place signs to most effectively convey their <br />messages to approaching traffic. <br />3. The Contractor shall adjust and revise all traffic control devices if determined <br />to be required by the City Engineer or Police Department. <br />4. The Contractor shall provide additional traffic control devices if required to <br />maintain the safe flow of traffic through construction operation. <br />C. Maintenance of Devices: <br />1. The Contractor shall maintain all traffic control devices, at proper locations <br />and in proper working order, at all times during construction operations and <br />whenever a hazard resulting from Contractor's operations exists. <br />2. The Contractor shall adjust and revise traffic control devices, placement, etc., <br />to suit changing conditions around construction operations. <br />D. Removal of Devices: <br />1. Traffic control devices shall remain in place at all times required to alert <br />approaching traffic of upcoming hazards. <br />2. After hazard has been removed, remove all traffic control devices. Remove <br />signs or completely cover their messages. <br />3.05 FLAGGERS <br />A. General: The Contractor shall employ flaggers: <br />1. As required for each specific detour. <br />2. At all locations on a construction site where barricades and warning signs <br />cannot control the moving traffic. <br />B. Placement: Where flaggers are required, they shall be logically placed in relation <br />to the equipment or operation so as to give adequate warning and shall be placed