The permanent DMS equipment serves multiple purposes and it is arguable whether

The permanent dms equipment serves multiple purposes

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used for the project and no temporary ITS equipment was deployed. The permanent DMS equipment serves multiple purposes, and it is arguable whether that cost should be attributed to the work zone project. The data collection effort for the I-70 site was very significant as portable surveillance captured the actual diversion flows to alternative routes. The benefit-cost ratio for the I- 70 site was 2.1 to 1 if adjusted equipment costs were included and 6.9 to 1 without equipment costs. The safety-focused I-44 ITS deployment had an estimated benefit-cost ratio of 3.2 to 1 . 17. Key Words 18. Distribution Statement ITS mobility safety work zones No restrictions. 19. Security Classification (of this report) 20. Security Classification (of this page) 21. No. of Pages 22. Price Unclassified. Unclassified. 69 NA Form DOT F 1700.7 (8-72) Reproduction of completed page authorized
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E FFECTIVENESS OF W ORK Z ONE I NTELLIGENT T RANSPORTATION S YSTEMS Final Report - December 2013 Praveen Edara, Ph.D., P.E., PTOE, Associate Professor Carlos Sun, Ph.D., P.E., J.D., Associate Professor Andrew Robertson, M.S., Graduate Student University of Missouri-Columbia [email protected] (573) 882-1900 Sponsored by the Midwest Smart Work Zone Deployment Initiative and the Federal Highway Administration (FHWA) Pooled Fund Study TPF-5(081): Iowa (lead state), Iowa, Kansas, Missouri, Nebraska, Wisconsin Preparation of this report was financed in part through funds provided by the Iowa Department of Transportation through its Research Management Agreement with the Institute for Transportation (InTrans Project 06-277)
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v TABLE OF CONTENTS ACKNOWLEDGMENTS ............................................................................................................. ix EXECUTIVE SUMMARY ........................................................................................................... xi INTRODUCTION ........................................................................................................................... 1 FRAMEWORK FOR EVALUATING WORK ZONE ITS DEPLOYMENT ................................ 3 Site Selection ....................................................................................................................... 3 Performance Measures ......................................................................................................... 4 Data Collection .................................................................................................................... 5 Benefit-Cost Analysis .......................................................................................................... 6 APPLYING THE FRAMEWORK TO TWO WORK ZONE ITS DEPLOYMENTS ................... 8 I-70 Blanchette Bridge Case Study ...................................................................................... 8 Data Collection for I-70 Case Study .................................................................................... 9 Survey of Motorists for the I-70 Work Zone ..................................................................... 12 Performance Measures for the I-70 Case Study ................................................................ 15 I-44 Work Zone Case Study .............................................................................................. 17 Crash Analysis ................................................................................................................... 18 Computing Benefit-Cost Ratios ......................................................................................... 18 Cost calculations for I-70 Case Study ................................................................................ 19 Cost Calculations for I-44 Case Study ............................................................................... 19 Benefit Calculations for I-70 Case Study .......................................................................... 19 Benefit Calculations for I-44 Case Study .......................................................................... 20 CONCLUSIONS ............................................................................................................................ 21 REFERENCES .............................................................................................................................. 23 APPENDIX A. COMPREHENSIVE LITERATURE REVIEW .................................................. 25 ITS Use to Improve Traffic Operations ............................................................................. 25 ITS Use to Improve Traffic Safety .................................................................................... 44 Benefit-Cost Analysis of ITS Deployments ...................................................................... 49 APPENDIX B. BLANCHETTE BRIDGE WORK ZONE MOTORIST SURVEY ..................... 53
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vii LIST OF FIGURES Figure E1. Work zone ITS evaluation framework ......................................................................... xi Figure E2. Site characteristics warranting ITS deployment ......................................................... xii Figure 1. Work zone ITS evaluation framework ............................................................................. 3 Figure 2. Site characteristics warranting ITS deployment ............................................................... 4 Figure 3. I-70 Blanchette Bridge work zone network map .............................................................. 9 Figure 4. I-70 network map showing the data collection locations ............................................... 10 Figure 5. Network map of I-70 network diversion ........................................................................ 11 Figure 6. Frequency of driver usage of the I-70 Blanchette Missouri River Bridge ..................... 13 Figure 7. Compared value of DMS to other traveler information sources .................................... 14 Figure 8. VISSIM geometry of the I-70 Blanchette Bridge network ............................................ 16 Figure B1. I-70 Blanchette Missouri River Bridge work zone between two arrows, Google 201353
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