1. RoadSafety@iastate.edu Work Zone Safety CE 486 Spring 2004 DISCLAIMER: This document is provided as part of the requirements of a civil engineering course at Iowa State University and does not constitute a professional engineering design or a professional land surveying document. Although the information is intended to be accurate, students, instructors, and Iowa State University make no claims, promises, or guarantees about the accuracy, completeness, or adequacy of the information. The user of this document shall ensure that such use does not violate Iowa law with regard to professional licensing and certification requirements, including any work resulting from this student-prepared document required to be under the responsible charge of a licensed engineer or surveyor.

2. Slide 2 Acknowledgements Client Client Mark Bortle, Safety Engineer (IDOT) Advisors Advisors Dr. John Lamont (ECpE) Prof. Ralph Patterson III (ECpE) AAP Duane Smith P.E. (CCEE) Prof. Veronica Dark (Psych)

3. Slide 3  Defining the RS-4 Work Zone Matthew Baker: EE  Analyzing Crash Data Nancy Suby-Bohn: CE Road Construction Safety Team SD-May04-01 Outline

4. Slide 4  Distracted or “Zoned Out” Josh Keith: CE  Classical Conditioning Angel Anderson: CprE  Instrumental Conditioning Abdul Nuhu: EE Outline “Grabbing driver’s cognitive reasoning”

5. Slide 5  Real-time Information Clinton Dawson: CprE  Education the Public Amit Agarwal: CprE Outline

6. Slide 6 http://seniord.ee.iastate.edu/may0401/ Photo courtesy IDOT

7. Slide 7 Photo courtesy of Work Zone Safety for Iowa DOT Construction Projects

8. Slide 8 Work Zone Picture courtesy of MUTCD 2000 day or night scheduled daily work

9. Slide 9 Flagger Combined with a pilot car Picture courtesy of MUTCD 2000

10. Slide 10 Flagger Combined with a pilot car Lane Closure usually stretches between 2 and 2 ½ miles Picture courtesy of MUTCD 2000

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12. Slide 12 1 - Lane closure 2 - Lane shift/crossover (head-to-head traffic) ** 3 - Work on Shoulder or median 4 - Intermittent or Moving work ** 8 - Other type of work zone (explained in narrative) 9 - Unknown

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14. Slide 14 Temporary Rumble Strips Placement- Advance Warning Area Placement- Advance Warning Area Tactile and auditory stimulus to focus driver’s attention on impending construction Tactile and auditory stimulus to focus driver’s attention on impending construction ¼” Thickness combined with road construction orange ¼” Thickness combined with road construction orange Currently determining ideal placement pattern and ADT guidelines Currently determining ideal placement pattern and ADT guidelines Research from MwSWZDI and Texas Transportation Institute Research from MwSWZDI and Texas Transportation Institute

15. Slide 15 Distractions  Cell Phones  Road Hypnosis  Passengers  Daily pattern/rut

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18. Slide 18 Possible Reasons Getting one’s attention is not the same Getting one’s attention is not the same as getting to one’s decision process. as getting to one’s decision process. Classical Conditioning – Stop Sign Classical Conditioning – Stop Sign Instrumental Conditioning – reaction to a police car Instrumental Conditioning – reaction to a police car Learned Irrelevance – lack of need to respond Learned Irrelevance – lack of need to respond Conscious Choice – realizing a need to respond Conscious Choice – realizing a need to respond Veronica Dark, Assoc Professor, Veronica Dark, Assoc Professor, Department of Psychology, ISU

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20. Slide 20 Signs www.addcoinc.com/t_smart.htmwww.addcoinc.com/t_smart.htm and pennsylvania IDOT

21. Slide 21 www.addcoinc.com/t_smart.htm

22. Slide 22 Variable Message Fine Display Sign  Radar + Variable Message Board + Fine  Easily Programmable  Data Collection Options

23. Slide 23 Photo courtesy of Work Zone Safety for Iowa DOT Construction Projects The Current Problem

24. Slide 24 Work Zone Exit/Entrance  Goal: Design all encompassing system  Configure light timing mechanisms  Determine most effective light configuration  Modify traffic lights to needed specifications  Two approaches considered  Portable traffic light  3 mode portable traffic light w/gate

25. Slide 25 Work Zone Exit/Entrance cont…  Portable traffic light  Seven day battery life before charge with optional solar power unit.  A cell-phone based status monitor informs workers of malfunctions  Vehicle presence sensor mode  Ability to operate continuously for 365 days a year

26. Slide 26 Work Zone Exit/Entrance cont…  3 mode portable traffic light w/gate  Seven day battery life before charge with optional solar power unit.  Removable break away gate  Automatic mode, Manual mode, and  Wired remote mode.

27. Slide 27 511 Phone/Website Suggestions to improve or change current 511 website Suggestions to improve or change current 511 website Make changes to the 511 automated phone-system Make changes to the 511 automated phone-system Add features Add features Spread awareness among public to increase use Spread awareness among public to increase use Raise user friendliness of the system Raise user friendliness of the system

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29. Slide 29 Current Methods  Research methods used currently  Whom do they target?  Do they fulfill the requirement of the project?  Adaptable?  Cost Effectiveness  Different campaigns underway nationally  Study the campaigns in Iowa and other states  Analyze their effectiveness  Whether they are realizable in Iowa

30. Slide 30 Educational component  Multiple Objectives: Educate the public (drivers, future drivers)Educate the public (drivers, future drivers)  Different types of drivers (SUVs, cars, trucks, etc..)  Different approaches for each category Educate the construction workersEducate the construction workers  Using the new setup  Basic safety guidelines to follow

31. Slide 31 Conclusion  Different components being designed for greater effectiveness  All the components might not be implemented immediately or together  Components are aimed for maximum cognitive stimulation  Components meet design plan submitted to the client

32. Slide 32 RS-4 Road Standard

33. Slide 33 Any Questions ? Photo courtesy of Work Zone Safety for Iowa DOT Construction Projects