2.09 FHWA Final Rule
(Updated 12/3/2020)
Agencies are required to use work zone data at the project and process levels to manage and improve work zone safety and mobility per the provision in Section 630.1008(c) of the FHWA Work Zone Safety and Mobility Rule.
- The project-level requires agencies to use field observations, available work zone crash data, and operational information to manage the work zone impacts of individual projects while projects are under construction.
- The process-level requires agencies to analyze work zone crash and operational data from multiple projects to improve agency processes and procedures, and in turn continually pursue the improvement of overall work zone safety and mobility.
- Recommends that agencies maintain elements of the data and information resources that are necessary to support the use of work zone data for the above activities.
Work zone data is necessary to make an informed assessment of the effectiveness of efforts to manage work zones safety and mobility impacts. Work zone field data, which includes but is not limited to volume data, diversion rates, crash rates, site observations, shy distances, etc. It also enables agencies to assess how well planning and design estimates of anticipated impacts match what happens in the field. Work zone data should support performance assessments at both the project and program-levels. Available data and information provide the basis for assessing performance and taking appropriate actions to improve performance on individual projects as well as overall processes and procedures.
Each region is responsible for retaining information, analysis, and mitigation measures used in the project files.
