A high volume overpass had to be resurfaced, one lane at a time. The turnpike authority chose to maintain traffic flow in only one direction in during the process. However, they needed counter-flow access for emergency vehicles. We used 4 Pop-Up trailers – 2 controlling the off ramps at each end of the bridge and two to control the counter-flow emergency vehicles, using GPS based emergency vehicle preemption.
4 Pop-Up trailers (both Pop-Up-LD & HD) with microwave vehicle detection, two with emergency vehicle preemption.