Evaluation and Feedback
State of the Art
Uniform work zone crash data is collected electronically in all States and the raw data is simultaneously transmitted to the State DOT. Work zone crash data is automatically analyzed and trends and reports are periodically furnished to appropriate DOT offices (including, but not limited to, design and construction project personnel). Performance measures for work zone congestion/delay are used to evaluate how well agencies are meeting performance goals for mobility and safety in work zones. Motorists provide perspectives on how well their demands for mobility and safety in work zones are being met.
To achieve state-of-the-art evaluation and feedback, transportation agencies would need to:
- Adopt uniform work zone definitions and work zone data for reporting
work zone crashes.
- Develop performance measures for work zone congestion and delay
that can be applied to a specific project, as well as, Statewide and
nationally.
- Develop and implement an electronic crash data collection system
that simultaneously transmits the raw work zone crash data to the
DOT.
- Collect and evaluate before, during, and after work zone traffic
flow data.
- Conduct project area-wide customer surveys to routinely evaluate work zone acceptability.
