For Work Zone Designers Bi8ke 1 Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient’s Catalog No. 4. Title and Subtitle 5. Report Date Guidelines for Work Zone Designers – Pedestrian and Bicycle June 2018 Accommodation 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. John W. Shaw, William Bremer, Madhav V. Chitturi, Andrea Bill, and David A. Noyce 9. Performing Organization Name and Address 10. Work Unit No. (TRAIS) Traffic Operations & Safety Laboratory University of Wisconsin – Madison 1415 Engineering Drive #2205 11. Contract or Grant No. Madison WI 53706 DTHF6114H00011 12. Sponsoring Organization Name and Address 13. Type of Report and Period Covered Federal Highway Administration Guidebook Office of Operations 1200 New Jersey Avenue SE 14. Sponsoring Agency Code Washington DC 20590 15. Supplementary Notes This material is based on work supported by the Federal Highway Administration. This publication does not constitute a national standard, specification or regulation. 16. Abstract Most State and many other transportation departments in the U.S. maintain roadway and/or work zone design manuals containing State specific regulations, policies, and design guidance for their designers and consultants to use. However, those manuals vary widely in the depth of coverage and the work zone design topics offered. National work zone design guidelines are lacking. This series of guidelines for work zone designers covers various work zone safety design topics for states, design manual decision makers, editors, and subject matter experts to develop or enhance their own guidance materials. “Guidelines for Work Zone Designers – Pedestrian and Bicycle Accommodation” provides guidance covering the topic of safely accommodating pedestrians and bicyclists in work zones and is not intended to be a stand-alone document for designing work zone traffic control plans. State, county, local, and tribal transportation agency subject matter experts, should use this material as reference material to augment their own work zone design policies and guidance. The material in this guide was gathered from existing State design manuals, considered as best state-of-the-practice by the authors and worthy of sharing with other states, and from state-of-the-art work zone safety and traffic management research documents developed by the Transportation Research Board, the FHWA and other institutions. 17. Key Words 18. Distribution Statement Work Zone Traffic Control, Traffic Control Plan Design, Pedestrian and No restrictions. Bicycle Accommodation in Work Zones 19. Security Classification. 20. Security Classification. 21. No. of Pages 22. Price (of this report) (of this page) Unclassified Unclassified 78 Form DOT F 1700.7 Reproduction of completed page authorized Table of Contents 0. Foreword ............................................................................................................................................... 1 1. Introduction ........................................................................................................................................... 2 The Safe System Approach ........................................................................................................ 3 Characteristics of Pedestrian/Bicyclist Crashes ....................................................................... 3 Accommodating All Road Users ................................................................................................ 4 Temporary Pedestrian/bicyclist Design Principles .................................................................. 5 Trip Purpose ................................................................................................................................ 6 Workers as Pedestrians .............................................................................................................. 6 Legal and Regulatory Considerations ....................................................................................... 6 Design Flexibility Issues............................................................................................................ 10 2. General Design Considerations ........................................................................................................... 11 Separation of Pedestrians from Work Activities .................................................................... 11 Selection of Techniques and Materials .................................................................................... 12 Pathway Widths ........................................................................................................................ 13 Slopes and Cross-Slopes ........................................................................................................... 13 Crosswalk Detectability ............................................................................................................ 14 Vertical Alignment (Vertical Surface Discontinuities) .......................................................... 16 Gratings and Slotted Covers .................................................................................................... 18 Surface Condition ..................................................................................................................... 19 Materials Storage ...................................................................................................................... 19 Vertical Obstructions ............................................................................................................ 19 Sign Mounting ....................................................................................................................... 20 Pedestrian Refuges. ............................................................................................................... 20 Traffic Signal Timing............................................................................................................ 21 Temporary Pedestrian Signals ............................................................................................. 21 Pedestrian/bicycle Detection ................................................................................................ 21 Operational Alternatives to Physical Accommodations .................................................... 22 3. Common Work Zone Hazards and Solutions...................................................................................... 23 Introduction ............................................................................................................................... 23 No Alternative Route ................................................................................................................ 23 Unmarked or Poorly Marked Closure .................................................................................... 23 i Separation of Bystanders from Work Area ............................................................................ 25 Open Manholes and Similar Hazards ..................................................................................... 25 Trenches ..................................................................................................................................... 26 Tripping Hazards ...................................................................................................................... 26 4. Design Elements ................................................................................................................................. 27 Portable Ramps and Temporary Ramps ................................................................................ 27 Double Ramps for Bridging Over Pipes, Cables, Etc. ........................................................... 30 Temporary Covers and Footplates .......................................................................................... 31 Manhole Safety .......................................................................................................................... 32 Temporary Pedestrian/Bicycle Bridges .................................................................................. 32 Benches....................................................................................................................................... 33 Temporary Mid-Block Crossings ............................................................................................ 33 Pedestrian/Bicycle Longitudinal Channelizing Barricades and Fencing Systems .............. 34 Barrier Systems for Pedestrian/Bicycle Applications ............................................................ 39 Falling Debris Protection ...................................................................................................... 40 Temporary Lighting ............................................................................................................. 42 Transit Stops .......................................................................................................................... 46 Railroad Crossings ................................................................................................................ 47 Bridges and Tunnels ............................................................................................................. 48 5. Temporary Surfacing Options ............................................................................................................. 49 Asphalt