Design of an Alternative Work Zone Attenuator Device

The Ohio Department of Transportation (ODOT) currently uses dump-trucks as shadow vehicles to mount crash attenuators in a work zone. When used in work zones, these dump trucks may become damaged under a crash, which may render them unavailable to support other operations. Additionally, an assessment of other nuanced facets such as shadow vehicle operator safety, safety of work zone occupants, make the decision for use of dump trucks in work zone, non-trivial in nature. This research investigates whether an alternative device can be designed to replace the use of dump-trucks as shadow vehicles in a work zone. The research identifies ODOT’s needs in a work zone, performs Market Research, and develops specifications for such an alternative device. The specifications are refined using feedback received from the industry and vendors via a RFI mechanism. Finally, a cost-benefit analysis is performed to evaluate the economic feasibility of using such an alternative device against the dump-truck. Findings suggest that use of an alternative device with advanced sensor stack that displays limited in work zone operational autonomy may provide safety and operational benefits. Final specifications for such an alternative device are developed and posted as a part of this research program.