Requirement for using channelizing devices (e.g. cones) to separate traffic from the work area for a work operation (e.g paving)

Arizona uses channelizing devices. Requirement for using channelizing devices (e.g. cones) to separate traffic from the work area for a work operation (e.g. paving, etc) on a two-lane, two-way roadway when flaggers are available on either end of the work zone alternating traffic through the work area, possibly with a pilot car.