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Regional Operations Forum Work Zones

Accelerating solutions for highway safety, renewal, reliability, and capacity. Regional Operations Forum Work Zones. Work Zone Challenges. Construction worker and road user safety Work zone (WZ) congestion and delay Roadway capacity and speed reductions

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Regional Operations Forum Work Zones

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  1. Accelerating solutions for highway safety, renewal, reliability, and capacity Regional Operations Forum Work Zones

  2. Work Zone Challenges • Construction worker and road user safety • Work zone (WZ) congestion and delay • Roadway capacity and speed reductions • Alternate routing and travel route availability • Day and nighttime condition awareness • Traffic pattern changes • Incident management

  3. Types of Work Zones Five categories: • Mobile • Short duration • Short-term stationary • Intermediate-term stationary • Long-term 3

  4. Policies: Facilitators of WZ Management • Provides guidance/direction for work zone management • Systematic consideration of work zone impacts • All stages of project development • Addresses safety and mobility needs of travelers/ workers • Work Zone Safety and Mobility Rule • http://www.ops.fhwa.dot.gov/wz/resources/final_rule/language.htm • Can encourage use of specific strategies the agency has found effective, such as ITS

  5. Work Zone Safety and Mobility Final Rule • Established requirements for • Systematically addressing WZ safety and mobility • Develop strategies to manage impact on federal-aid highway projects • Published: September 2004 • Effective date: October 2007 • Required agencies to develop WZ policy

  6. Examples of Work Zone Policies • Washington State DOT • Secretary’s Executive Order, February 2007 • WSDOT must make “safety of workers and the traveling public our highest priority during roadway design, construction, maintenance, and related activities” • Sets out responsibilities • Utah DOT • Requires TMP • Sets out responsibilities • Establishes “Traffic Guidelines for Work Zone Safety and Mobility” • www.ops.fhwa.dot.gov/wz/resources/final_rule/policy_examples.htm

  7. What is a TMP? • Transportation Management Plan (TMP) • Design documents show how a project will be built • Shows how traffic will be managed during construction • Required on ALL federal-aid projects • Scalable to the type of project being considered • Considered a living document

  8. TMP Development Process FHWA Work Zone Mobility Final Rule “Developing and Implementing Transportation Management Plans for Work Zones”

  9. Example TMP

  10. WZ Management Strategies • Traffic control • Contract incentives • Accelerated construction • Contraflow lanes • Demand management • Traveler information

  11. Opportunities for Coordination • TMPs require coordination with surrounding projects. • What happens when coordination doesn’t exist?

  12. Work Zone ITS • Traffic management systems • Traditional traffic management • Monitoring • Signals • Ramp metering • Dynamic merge systems • Variable speed limit/active traffic management (ATM) systems • Traveler information systems • Incident management systems • Intrusion alarm systems • Automated speed enforcement/feedback systems

  13. Dynamic Merge Systems • Dynamic signs and devices control vehicle merging approaching lane closures • Changes lane use instructions based on current traffic conditions • Sensors determine congestion level or queue length • “Early”and “Late”

  14. Dynamic Early Merge • Addition to standard traffic control • No passing zone at back of queue • Detected by temporary speed detection • Fixed no passing signs • Flashers indicate no passing zone 16

  15. Dynamic Late Merge • Addition to standard traffic control • Easy trailer mountedDMS deployment • Fast adjustments • DMS active only when congested periods 17

  16. Dynamic Late Merge 1st Sign – Approximately 3 miles upstream 18

  17. Dynamic Late Merge 2nd Sign - 1.5 miles from Taper 19

  18. Dynamic Late Merge 3rd Sign – Located at Taper 20

  19. Variable Speed Limit • Provides ability to set speed limit based on work zone conditions • Type of work being done • Characteristics of work zone 21

  20. New Mexico DOT ITS Benefits • The Big I Reconstruction project • NO FATALITIES • Reduced crashes and secondary crashes by 32% • Reduced incident management times from 45 to 25 min • Saved effort through automation • Reduced traffic through work zone 23

  21. Other Examples • New Jersey I-295 Project • Real-time travel times • I-93 in Salem, New Hampshire • Changeable message signs, sensors, cameras • Work zone travel conditions via the Internet • I-295 in Washington, DC • Real-time traffic information via Internet • http://www.ops.fhwa.dot.gov/wz/its/index.htm 24

  22. Group Discussion

  23. Best Practices – New York City DOT Online Mapping

  24. Best Practices – Oregon DOT Corridor-Level TMPs

  25. Best Practices – VDOT LCAMS

  26. SHRP 2 Project R11 • WISE Software (Work Zone Impact and Strategy Estimator software). Goals: • Document effective practices for executing highway renewal activities • Examples of agency and project org. designs • Develop new tools, techniques, and processes • Provide guidance for selecting tools, techniques, performance measures, and practices • Assess and develop training needs and materials • Project is complete with planning and operations modules

  27. Recommended Resources • Work Zone Safety and Mobility Final Rule http://www.ops.fhwa.dot.gov/wz/resources/final_rule/language.htm • Developing and Implementing Transportation Management Plans for Work Zones http://www.dot.state.mn.us/trafficeng/otepubl/fhwa/trans-mgmt-plans.pdf • Freeway Management Handbook http://ops.fhwa.dot.gov/freewaymgmt/publications/frwy_mgmt_handbook/toc.htm

  28. Additional Resources • FHWA work zone website http://www.ops.fhwa.dot.gov/wz/index.asp • National Work Zone Safety Information Clearinghousehttp://www.workzonesafety.org/about/ • Work zone resources http://www.ite.org/education/Workzones/ • Coordinating, Planning, and Managing the Effects of Roadway Construction with Technologyhttp://www.its.dot.gov/press/2009/road_construction_tech.htm • AASHTO’s ITS in work zoneshttp://www.transportation.org/?siteid=42&pageid=1939 31

  29. Additional Resources • ITS Safety and Mobility Solutions: Improving Travel Through America's Work Zoneshttp://www.atssa.com/galleries/default-file/2008July21_ITS_Safety_and_Mobility.pdf • Minnesota Intelligent Work Zone Toolbox http://www.dot.state.mn.us/trafficeng/workzone/iwz/MN-IWZToolbox.pdf • Comparative Analysis Report: The Benefits of Using Intelligent Transportation Systems in Work Zones http://www.ops.fhwa.dot.gov/wz/its/wz_comp_analysis/comp_anl_rpt_08.pdf 32

  30. Additional Resources • Work Zone Operations Best Practice Guidebook http://www.ops.fhwa.dot.gov/wz/practices/best/bestpractices.htm • NCHRP Synthesis 379: Selection and Evaluation of Alternative Contracting Methods to Accelerate Project Completion http://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_syn_379.pdf • WSDOT ATM SOP: (section F covers ATM in work zones) http://www.wsdot.wa.gov/NR/rdonlyres/788B7FFC-6BE3-426A-9882-0430180900A6/0/StandardOperatingProceduresdraftv62.pdf 33

  31. Homework Takeaways • Follow the Work Zone Safety and Mobility Final Rule • Where does operations fit in TMP development within your agency? • Are you involved at the right level and stage? • If not, who can help to get you there? • What new capabilities, resources, or knowledge will help to benefit planned special event operations in your region? • Do cost management and recovery.

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