Requirement for using channelizing devices (e.g. cones) to separate traffic from the work area for a work operation (e.g. paving)
When work is scheduled, Maryland requires that channelizers be placed to separate the traffic from the work site on a 2-lane, 2-way roadway. Even if a pilot car is used, there must be a separation between the traveling public and the workers.
The only exception is in the case of emergency response units (police, fire, paramedic and state ERU units) and emergency utilities during storms.