Center lane closure

Hawaii DOT has used center lane closure on low-speed roadways, but does not recommend it on high-speed facilities. The cones or delineators situated between the two lanes at the beginning and end of the lane shift (see the web site below) and could confuse motorists. Having a crew immediately fix the scattered devices could help, but that could put the work crew at risk.
MUTCD recommends temporary striping, but if you have to do this, anchoring or fixing the devices to the pavement could address this issue.
If work is on a multi-lane freeway, MUTCD’s TA-38 is preferred by HDOT to address center lane work.