NYSDOT Variable Message Sign Guidelines and Is Intended for Use by the Regional Traffic Management Centers
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Chapter 1 - Variable Message Sign Guidelines Office of Traffic Safety and Mobility December 2018 PREFACE This document provides guidance for the use of Variable Message Signs (VMS). NYSDOT personnel should use this document when making decisions on when, where, and how to effectively deploy VMS for providing real-time motorist information. For the purpose of this document, VMS will refer to both Permanent (fixed) and Portable Variable Message Signs (PVMS) unless otherwise noted. These guidelines contain a compilation of national research and current operational practices within NYSDOT. All VMS guidelines are consistent with the current Manual on Uniform Traffic Control Devices (MUTCD) and Federal Highway Administration (FHWA) policy for VMS use. All standards cited in these guidelines are required by the current edition of the Manual on Uniform Traffic Control Devices. Exceptions or deviations from these guidelines shall be reviewed and approved by the Office of Traffic Safety and Mobility. NYSDOT recognizes the benefits of properly using VMS to manage traffic and inform motorists of real time information. The Department is also aware that improper use of VMS can adversely affect travel and credibility with motorists on our highways. Due to the importance of proper and effective VMS usage, NYSDOT has developed these guidelines. NOTE: These guidelines shall be used in accordance with the current NYSDOT VMS Policy and do not replace requirements in the MUTCD or Highway Design Manual. NYSDOT VMS GUIDELINES i December 2018 Table of Contents PREFACE ............................................................................................................................................ i GLOSSARY ........................................................................................................................................ iv ACRONYMS ...................................................................................................................................... vi CHAPTER 1 – BACKGROUND .............................................................................................................. 1 Terminology _____________________________________________________________________________1 Types of VMS ____________________________________________________________________________1 Permanent VMS ................................................................................................................................................................. 1 Portable VMS (PVMS) ......................................................................................................................................................... 2 Truck-Mounted VMS .......................................................................................................................................................... 2 Matrix Types _____________________________________________________________________________2 Modular or Character Matrix ............................................................................................................................................. 2 Line Matrix ......................................................................................................................................................................... 2 Full Matrix .......................................................................................................................................................................... 2 CHAPTER 2 – MESSAGING AND USE OVERVIEW ................................................................................. 3 CHAPTER 3 – USAGE .......................................................................................................................... 5 Incident Management _____________________________________________________________________5 Other Messages __________________________________________________________________________5 AMBER & Missing Person Alerts ........................................................................................................................................ 5 Emergency Homeland Security Messages .......................................................................................................................... 5 Advance Notice - Roadwork and Special Events ................................................................................................................ 6 Travel Time ......................................................................................................................................................................... 6 Weather ............................................................................................................................................................................. 6 Air Quality Action Days ....................................................................................................................................................... 7 Blank Signs .......................................................................................................................................................................... 7 Safety Campaigns ............................................................................................................................................................... 7 Local Community Information............................................................................................................................................ 7 Appropriate and Inappropriate VMS Usage ____________________________________________________8 Regional Pilot Programs ____________________________________________________________________9 Responsibilities for Usage __________________________________________________________________9 MUTCD Limitations on the Use of VMS ______________________________________________________ 10 Using Graphics and Color _________________________________________________________________ 10 Message Priorities ______________________________________________________________________ 11 CHAPTER 4 - LOCATION ................................................................................................................... 12 Installation and Placement _______________________________________________________________ 12 Visibility ______________________________________________________________________________ 13 Safety ________________________________________________________________________________ 14 CHAPTER 5 – MESSAGES .................................................................................................................. 16 NYSDOT VMS GUIDELINES ii December 2018 Message Anatomy ______________________________________________________________________ 16 Unit of Information .......................................................................................................................................................... 16 Phase ................................................................................................................................................................................ 17 Message ........................................................................................................................................................................... 18 Message Factors ________________________________________________________________________ 18 Display Time ..................................................................................................................................................................... 18 Message Length ............................................................................................................................................................... 18 Message Type __________________________________________________________________________ 19 CHAPTER 6 - EQUIPMENT ................................................................................................................ 23 Permanent and PVMS Models _____________________________________________________________ 23 VMS Coordination with Other Field Elements ________________________________________________ 25 CHAPTER 7 - DOCUMENTATION ....................................................................................................... 26 Appendices APPENDIX A - Abbreviations ............................................................................................................ 27 APPENDIX B - Permanent VMS Sample Messages ............................................................................ 32 APPENDIX C - Portable VMS Sample Messages ................................................................................ 37 APPENDIX D - AMBER Alert – Operations and Implementation Guide ............................................... 41 APPENDIX E - Missing Adult – Operations and Implementation Guide .............................................. 48 APPENDIX F - Missing Child – Operations and Implementation Guide ............................................... 55 APPENDIX G - Missing College Student – Operations and Implementation Guide.............................. 61 APPENDIX H - Travel Time Systems Requirements ............................................................................ 67 APPENDIX I - Air Quality Action Days – VMS Policy and Guide .......................................................... 73 APPENDIX J - Official Guidance on VMS Messaging for Severe Weather (2018) ................................ 78 APPENDIX K - Official Guidance on VMS Messaging for Official Truck Bans .....................................