Signal Timing Manual - Second Edition (2015) / Chapter Skim
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Pages 180-204
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From page 180... ...
Chapter 8. Implementaon and Maintenance CHAPTER 8 IMPLEMENTATION AND MAINTENANCE CONTENTS 8.1 TRANSFER PLANS FROM OFFICE TO FIELD ..................................................................
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From page 181... ...
Chapter 8. Implementaon and Maintenance LIST OF EXHIBITS Exhibit 8-1 Signal Timing Implementation and Maintenance Process ..........................
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From page 182... ...
Chapter 8. Implementaon and Maintenance LIST OF EXHIBITS Exhibit 8-1 Signal Timing Implementation and Maintenance Process ..........................
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From page 183... ...
8-2 Chapter 8. Implementaon and Maintenance Before beginning the process shown in Exhibit 8-1, the practitioner should plan every step with future needs in mind.
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From page 184... ...
8-2 Chapter 8. Implementaon and Maintenance Before beginning the process shown in Exhibit 8-1, the practitioner should plan every step with future needs in mind.
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From page 185... ...
8-4 Chapter 8. Implementaon and Maintenance If a practitioner plans to hand-enter values, an easy way to ensure that all of the required signal timing changes are incorporated in the ield is to mark-up existing timing sheets by hand, as shown in Exhibit 8-6.
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From page 186... ...
8-4 Chapter 8. Implementaon and Maintenance If a practitioner plans to hand-enter values, an easy way to ensure that all of the required signal timing changes are incorporated in the ield is to mark-up existing timing sheets by hand, as shown in Exhibit 8-6.
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From page 187... ...
8-6 Chapter 8. Implementaon and Maintenance 8.2.1 Observe Traffic Operaons at Individual Intersecons A practitioner should start ield observations at individual intersections, ensuring that the timing plans were transferred correctly at each location.
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From page 188... ...
8-6 Chapter 8. Implementaon and Maintenance 8.2.1 Observe Traffic Operaons at Individual Intersecons A practitioner should start ield observations at individual intersections, ensuring that the timing plans were transferred correctly at each location.
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From page 189... ...
8-8 Chapter 8. Implementaon and Maintenance analysis, such as before-and-after studies, which are often more expensive to perform and more limited in their assessment.
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From page 190... ...
8-8 Chapter 8. Implementaon and Maintenance analysis, such as before-and-after studies, which are often more expensive to perform and more limited in their assessment.
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From page 191... ...
8-10 Chapter 8. Implementaon and Maintenance 8.3.2.1 Operaonal Monitoring Operations at a signalized intersection or along a signalized corridor can change for a variety of reasons, including • Changes in trafic demand (e.g., change in minor street demand, change in turning movement volumes or spillback, change in major street demand, change in vehicle mix, or change in time-of-day volume distribution)
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From page 192... ...
8-10 Chapter 8. Implementaon and Maintenance 8.3.2.1 Operaonal Monitoring Operations at a signalized intersection or along a signalized corridor can change for a variety of reasons, including • Changes in trafic demand (e.g., change in minor street demand, change in turning movement volumes or spillback, change in major street demand, change in vehicle mix, or change in time-of-day volume distribution)
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From page 193... ...
8-12 Chapter 8. Implementaon and Maintenance 0 15 30 45 60 75 90 105 120 135 150 0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 0:00 Ti m e In C yc le (s )
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From page 194... ...
8-12 Chapter 8. Implementaon and Maintenance 0 15 30 45 60 75 90 105 120 135 150 0:00 3:00 6:00 9:00 12:00 15:00 18:00 21:00 0:00 Ti m e In C yc le (s )
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From page 195... ...
8-14 Chapter 8. Implementaon and Maintenance the detection should be ixed prior to making signal timing adjustments.
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From page 196... ...
8-14 Chapter 8. Implementaon and Maintenance the detection should be ixed prior to making signal timing adjustments.
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From page 197... ...
8-16 Chapter 8. Implementaon and Maintenance Signal Operaons Category Example Public Service Requests Potenal Quesons to Idenfy a Soluon Not Geng a Green □ "My movement is not geng a green." □ Is the intersecon part of a coordinated system (that dedicates me to certain phases for progression)
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From page 198... ...
8-16 Chapter 8. Implementaon and Maintenance Signal Operaons Category Example Public Service Requests Potenal Quesons to Idenfy a Soluon Not Geng a Green □ "My movement is not geng a green." □ Is the intersecon part of a coordinated system (that dedicates me to certain phases for progression)
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From page 199... ...
8-18 Chapter 8. Implementaon and Maintenance Signal Operaons Category Example Public Service Requests Potenal Quesons to Idenfy a Soluon Emergency Preempon Understanding □ "When an emergency vehicle goes through the intersecon, the signal operates "funny," and what does the flashing white light mean?
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From page 200... ...
8-18 Chapter 8. Implementaon and Maintenance Signal Operaons Category Example Public Service Requests Potenal Quesons to Idenfy a Soluon Emergency Preempon Understanding □ "When an emergency vehicle goes through the intersecon, the signal operates "funny," and what does the flashing white light mean?
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From page 201... ...
8-20 Chapter 8. Implementaon and Maintenance roadway users, who all expect high signal timing quality.
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From page 202... ...
8-20 Chapter 8. Implementaon and Maintenance roadway users, who all expect high signal timing quality.
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From page 203... ...
8-22 Chapter 8. Implementaon and Maintenance thumb, the current transportation environment requires much more detailed estimates.
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From page 204... ...
8-22 Chapter 8. Implementaon and Maintenance thumb, the current transportation environment requires much more detailed estimates.
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