Automated Speed Enforcement in Work Zones

Automated speed enforcement (ASE) systems are one tool in the wide range of speed management techniques that are effective in reducing speeds in work zones, thereby improving traffic and worker safety. ASE systems also increase the efficiency and safety of police officers. Presently, the Illinois Department of Transportation (DOT), the Washington State DOT, and the Maryland State Highway Administration (SHA) utilize automated speed enforcement technology to electronically identify vehicles traveling at a speed above a predefined threshold. This document discusses the ASE implementation in those states in details.