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Alternative sign sequences for work zones on rural highways
Crash testing of a portable energy-absorbing system for highway service vehicles
Effectiveness of city traffic-control programs for construction and maintenance work zones
Field evaluation of highway advisory radio for traffic management in work zones
Highway-related tort claims to Iowa counties
Portable hydrodynamic brine roadway deicer system
Regulation of the movement of hazardous cargoes on highways
Use of chevron patterns on traffic control devices in work zones (abridgment)
Work zone safety, maintenance management and equipment, and transportation of hazardous materials