A Primer on Work Zone Safety and Mobility Performance Measurement
U.S. Department of Transportation
Federal Highway Administration
Office of Operations
1200 New Jersey Ave., SE
Washington, D.C. 20590
The Federal Highway Administration provides high quality information to serve Government, industry, and the public in a manner that promotes public understanding. Standards and policies are used to ensure and maximize the quality, objectivity, utility, and integrity of its information. FHWA periodically reviews quality issues and adjusts its programs and processes to ensure continuous quality improvement.
- LIST OF TABLES
- LIST OF FIGURES
- TECHNICAL REPORT DOCUMENTATION PAGE
- EXECUTIVE SUMMARY
- WORK ZONE PERFORMANCE MEASURE NEEDS
- SELECTING USEFUL WORK ZONE PERFORMANCE MEASURES
- SOURCES OF DATA FOR WORK ZONE PERFORMANCE MEASUREMENT
- ESTIMATING WORK ZONE DELAY AND QUEUE LENGTH PERFORMANCE MEASURES
- WORK ZONE PERFORMANCE MEASUREMENT: MAKING IT HAPPEN IN YOUR AGENCY
- APPENDIX: DATA COLLECTION FORM FOR MANUAL DOCUMENTATION OF QUEUE LENGTHS AND DURATION
- Table 1. Potential Exposure Measures
- Table 2. Potential Safety Measures
- Table 3. Potential Queuing Measures
- Table 4. Potential Delay Measures
- Table 5. Other Potential Mobility-Related Measures
- Table 6. Work Zone Exposure Performance Measure Data Needs and Sources
- Table 7. Work Zone Safety Performance Measure Data Needs and Sources
- Table 8. Work Zone Mobility (Traffic Operations) Performance Measure Data Needs and Sources
- Table 9. Comparison of Various Work Zone Mobility Data Sources
- Figure 1. Steps to Estimate Travel Time Delays from Queue Length Data.
- Figure 2. Components of Work Zone Delay.
- Figure 3. Steps to Estimate Queue Length and Delays from Spot Speed Sensor Data.
- Figure 4. Example of Sensor Speed Analysis to Determine Duration and Length of Queue.