1 / 18

ENFORCEMENT-FRIENDLY WORK ZONES

ENFORCEMENT-FRIENDLY WORK ZONES. Gerald Ullman Michael Fontaine Steven Schrock Making Work Zones Work Better Workshop. The Problem…. Enforcement areas often eliminated Legislation hampers enforcement efforts. What Can Be Done?.

leslie-hopper
Download Presentation

ENFORCEMENT-FRIENDLY WORK ZONES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ENFORCEMENT-FRIENDLY WORK ZONES Gerald Ullman Michael Fontaine Steven Schrock Making Work Zones Work Better Workshop

  2. The Problem…. • Enforcement areas often eliminated • Legislation hampers enforcement efforts

  3. What Can Be Done? • Better DOT/enforcement coordination during planning/design/construction • Better use of technology? • Better enforcement-friendly designs

  4. When Does Coordination Begin?

  5. Innovative Arrangements • NJ State Police Construction Unit • OSHA-certified officers • Traffic control plan training • South Dakota DOTCOP • Officers hired as DOT employees • Special DOT vehicles • Authority limited to work zones

  6. Innovative Arrangements • Operation Hardhat • Florida Highway Patrol Officers • Construction vehicles provide better vantage point • Extensive publicity, advance warning to motorists

  7. Technology • Providing “real-time” information • Portable CMS • Permanent CMS • Active warnings • Use of Automated Speed Enforcement (ASE) Technology

  8. “Workers present” stipulation in double-fine laws Problems consistency driver understanding Active Warnings (Tennessee)

  9. Automated Speed Enforcement • High DOT/contractor/enforcement interest • Requires legislative changes to transportation code • Significant public/political opposition to ASE systems in the U.S.

  10. Modified ASE? • Use in a real-time, remote mode • Move enforcement activity outside of work zone

  11. Technically Feasible? • 85-88% of vehicles correctly identified 0.5 to 1.5 miles downstream • Wireless transmission of up to two images per minute

  12. Is It Practical? • Legal/political challenges • Continuous vehicle tracking • Visual verification of a violation • “Speed trap” perceptions • Financial challenges (ASE $50,000+) • Deployment/maintenance challenges

  13. “Enforceable” Work Zone Designs • Limit allowable work zone lengths • Enforcement pull-out areas

  14. Enforcement Pull-Out Areas Work Area • How long? • How far apart? • How best to incorporate? Pull Out

  15. Pull-Out Area Length • AASHTO HOV Design Guide • Typical driver deceleration/ acceleration values • Observed driver behavior after receiving a citation • Conclusion: • Pull out areas should be ¼ mile long on high-speed facilities

  16. Pull Out Area Spacing • Direct MOEs and costs difficult to assess • General hypothesis: • Not too closely spaced (constructability) • Not too widely spaced (enforceability)

  17. Building a Consensus 7 6 5 and Enforceability Perceived Constructability 4 (1=High, 7=Low) 3 2 1 0 1 2 3 4 5 6 7 Pull Out Area Spacing (Miles) Contractors Law Enforcement

  18. Other Considerations • Enforcement buy-in • Appropriate sight distances • Advance signing • Look for ways to incorporate into standard construction phasing

More Related