Federal Highway Administration2019PDFBriefUnited States. Federal Highway AdministrationUnited States. Federal Highway AdministrationUnited StatesWork zonesWork zone safetyTransportation operationsEvaluation and assessmentTraffic controlFHWA-HOP-19-030Transportation agencies receiving federal-aid must conduct biennial Work Zone Process Reviews (WZ PRs) to analyze their current policies and procedures for managing work zone traffic operations (23 CFR 630). In an environment of constrained resources, agencies are pressed to find the time for comprehensive self-evaluation or to conduct broad reviews of agency practice. Escaping from a cycle of maintaining the status-quo can be a difficult challenge to overcome. In response, the Federal Highway ...