Whether sweeping a busy freeway or patching potholes on a side street, mobile work zones carry their own types of problems. Roadway construction on its own is a uniquely dangerous job, and trying to stay safe is even harder when the site itself keeps moving.
Traffic exposure is the most dangerous issue facing a mobile work zone. Working within the everyday flow of traffic is challenging and doesn't offer the protection that a fully-closed or barricaded roadway work site does. Workers and equipment are doubly exposed to impatient commuters and inattentive drivers.