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AICOM <br />work area to alert other workers of vehicles encroaching on the work zone. <br />• A method to signal workers when vehicles encroach on the work zone. <br />• A system to account for workers at all times, which may include a buddy system. <br />• Emergency communication or warning signals used by a worker such as a radio, <br />signal horn, or whistle, which shall be used to call for help. <br />4.16 Attenuator Vehicles <br />4.16.1 It is good construction practice to place an attenuator truck or pick-up truck (minimum) an <br />appropriate distance and immediately in advance of workers in a work zone to protect workers from <br />vehicle intrusions and to warn approaching drivers that the shoulder or travel lane is occupied by <br />work activities. <br />4.16.2 The vehicle of choice should be placed an appropriate distance from the work activities to provide <br />the best protection for workers based on potential speed of traffic. <br />4.16.3 The tires should be placed so that should the vehicle be struck, it shall turn away from workers. <br />4.17 Closures within a Closure <br />4.17.1 On occasion, satellite operations may be performed under full freeway traffic closures. For this type <br />of work, special precautions referred to as a 'closure within a closure" is to be implemented in <br />accordance with the following: <br />Posted speed limits within closures should be set at 15 miles (24 kilometers) per hour. <br />• Signs are to be installed approximately 250 feet (76 meters) in advance of and behind the work <br />zone to alert drivers who may approach from either direction of the upcoming work zone. <br />• The work area is to be completely delineated with Type 1 barricades (candlesticks). <br />Any vehicle used for AECOM field work shall be equipped with a functioning four way Flashers <br />and rotating beacon placed on the roof of the vehicle. <br />5.0 Records <br />5.1 Traffic Protection Plans, Traffic Control Plans and completed Equipment Checklists shall be maintained in <br />project files. <br />6.0 Attachments <br />6.1 S3AM-306-FM1 Equipment Checklist <br />Highway &Road Nbrk ($3AM-306-PR7) <br />Revision 3 December 16, 2016 <br />PRINTED COPIES ARE UNCONTROLLED. CONTROLLED COPY IS AVAILABLE ON COMPANY INTRANET. Page 8 of 8 <br />