Removing temporary traffic control devices with the flow of traffic vs. backing the work vehicle behind to remove the devices

Arizona does not remove temporary traffic control devices with the flow of traffic. The general consensus is that this method increases worker exposure to open traffic. Another consideration is that, once the prewarners and any other regulatory or warning signs are removed, the remainder of the traffic control technically becomes legally unenforceable. In this case, if there happens to be an accident upstream as the first signs are being picked up, the State could be held liable.