1. Materials, Pavements & Transportation Operations CONCEPTS FOR ENHANCING THE EFFECTIVENESS OF TRAFFIC CONTROL PLANS Stuart Anderson Gerald Ullman Making Work Zones Work Better Workshop

2. Materials, Pavements & Transportation Operations Background Maintenance of traffic issues and traffic control plans (TCP) Temporal and spatial requirements impact construction –Temporal - time –Spatial - dimensions Options available

3. Materials, Pavements & Transportation Operations Background

4. Materials, Pavements & Transportation Operations Problem Lack of early and sufficient input of traffic and construction expertise Policy directives, funding and other factors often limit alternatives Solution may be sub-optimal

5. Materials, Pavements & Transportation Operations Preferred Practice Prior to detailed PS&E design During detailed PS&E design

6. Materials, Pavements & Transportation Operations Consider Pavement related processes –What is done –Pavement treatments and materials

7. Materials, Pavements & Transportation Operations Consider Non-pavement related processes –How is pavement treatment accomplished –Traffic and construction related issues

8. Materials, Pavements & Transportation Operations Process Approach Integrate pavement and non-pavement related processes Process developed under NCHRP Project 10-50A Fundementals –Start early in project development –Use multidisciplinary team approach –Analyze Traffic approaches to minimize impacts –Promote construction input on continuous basis

9. Materials, Pavements & Transportation Operations Process Approach Four main steps –Identify candidate sections –Identify pavement condition –Screen potential strategies –Evaluate feasible strategies Content of steps –Objectives –Key activities –Issues to consider –Resources –Practical illustrations

10. Materials, Pavements & Transportation Operations Process Approach Validated by industry Case studies demonstrated applicability Documented in final report –A Process for Selecting Strategies for Rehabilitation of Rigid Pavements, Final Report, NCHRP Project 10-50A, February 2002 –Contact NCHRP Program for Copy

11. Materials, Pavements & Transportation Operations Selection Process

12. Materials, Pavements & Transportation Operations Screen Potential Strategies

13. Materials, Pavements & Transportation Operations Resource Description of resource Relevance to analysis References for more information Examples –Work zone analysis tool - QUICKZONE –Workshop approach - Get In, Get Out, Stay Application –Constructibility Review Process Workbook - NCHRP Report 391

14. Materials, Pavements & Transportation Operations Traffic and Construction Issues

15. Materials, Pavements & Transportation Operations Traffic and Construction Issues: Caltrans I-710 Alternative Traffic –Segmental full closure (3 to 5 miles) in one direction –All lanes available to traffic weekdays –Install ITS during construction –Recommend use of alternate routes (I- 110, I-605, Lakewood Blvd. and other local streets)

16. Materials, Pavements & Transportation Operations Traffic and Construction Issues: Caltrans I-710 Alternative Construction –Two concrete plants –Concrete plants produce about 1800 CY per hour –Back-up equipment and extra sources of materials –Recycle existing PCC pavement –Ten-hour shifts –Three stage operation –16 weekends

17. Materials, Pavements & Transportation Operations Evaluate Potential Strategies

18. Materials, Pavements & Transportation Operations Level of Analysis DOT standard traffic and construction approach DOT standard traffic and construction approach but with some enhanced techniques to address special issues A corridor wide project-oriented traffic and construction approach

19. Materials, Pavements & Transportation Operations Traffic Analysis: Michigan I-496 Project

20. Materials, Pavements & Transportation Operations TCP Development for PS&E Traffic Constructibility reviews Contract methods Materials and equipment See NCHRP Synthesis 293

21. Materials, Pavements & Transportation Operations Benefits Efficient and cost effective construction Minimize impact on road users, local businesses Safer work zones Special needs identified early

22. Materials, Pavements & Transportation Operations Application Most projects types and sizes May have higher impact on projects with high traffic volumes Concepts currently being tested –TRB Task Force A5T60, “Accelerating Innovation in the Highway Industry” –IPRF research project, “Traffic Management Studies for Reconstruction of High Volume Roadways”

23. Materials, Pavements & Transportation Operations Application - TF A5T60 Accelerated Construction Technology Team (ACTT) Corridor review “Outside” experts visit state experts Share, learn, and promote new ideas Two-day workshop with Indiana and Penn DOTs Proposed use of innovation in twelve areas Ultimately - DOT decides what is best for their project

24. Materials, Pavements & Transportation Operations Application - Twelve Areas Corridor improvements Contracting and procurement techniques Work zone traffic management Stay out techniques Constructibility Geotechnology Utility delays Prefab/modular High speed QA/QC Workforce health and safety Training and education Communications of best practices

25. Materials, Pavements & Transportation Operations Application - IPRF Project Task 6 Conceptual Study Workshops with DOT Late in programming/early in design Brainstorm traffic and construction issues Recommend feasible alternatives Current studies –Mississippi DOT - I-55 South of Memphis –Washington DOT - I-5 through Seattle

26. Materials, Pavements & Transportation Operations Lessons Learned Do not “set” design basis too early Team approach enhances TCP development Early involvement of traffic and construction expertise helps identify possible problems and solutions

27. Materials, Pavements & Transportation Operations Conclusions DOTs should be encouraged to follow concepts throughout TCP development Constructibility reviews integral to TCP development Team approach essential especially on larger projects

28. Materials, Pavements & Transportation Operations Thank you! Discussion?