Category:902 Signals (MUTCD Part 4): Difference between revisions

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Traffic signals are electrically powered traffic control devices that warn or direct vehicular and pedestrian traffic to take some specific action.  Traffic signals provide for the orderly assignment of right of way to conflicting traffic movements at intersections.
Traffic signals are electrically powered traffic control devices that warn or direct vehicular and pedestrian traffic to take some specific action.  Traffic signals provide for the orderly assignment of right of way to conflicting traffic movements at intersections.


Traffic signals are not a complete solution for traffic problems.  Traffic signals can sometime create additional congestion and cause additional delay to vehicles if improperly designed, installed, or maintained.  Correctly designed and operated traffic signals installed at [[902.2 Warrants for Traffic Signal Installation| warranted locations]] will provide for the orderly movement of traffic, increase the intersection capacity, and in some instances, tend to reduce accidents.  [[902.7 Coordination|Coordinating]] and [[902.5 Phasing and Timing the Signal|phasing and timing signals]] are very important.
Traffic signals are not a complete solution for traffic problems.  Traffic signals can sometimes create additional congestion and cause additional delay to vehicles if improperly designed, installed, or maintained.  Correctly designed and operated traffic signals installed at [[902.3 Traffic Control Signal Needs Studies (MUTCD Chapter 4C)| warranted locations]] will provide for the orderly movement of traffic, increase the intersection capacity, and in some instances, tend to reduce accidents.  [[902.5 Traffic Control Signal Features (MUTCD Chapter 4D)#902.5.5 Coordination|Coordinating]] and [[902.5 Traffic Control Signal Features (MUTCD Chapter 4D)#902.5.36 Signal Timing|timing signals]] are very important.  
 
Traffic signals are listed on the Highway Right of Way and Construction Program in the description of the type of improvement if there is a probability of future signal control.  If signals cannot be justified, they are to be eliminated from the program at the earliest possible date.
 
This article provides the [[902.1 Basis for Installation|basis for installation]] of traffic signals, discusses [[902.3 Basic Types of Signal Control| basic types of signal control]] equipment and hardware, their characteristics, uses, applications, [[902.8 Signal Operations and Maintenance|operations and maintenance]].  The policies, standards and guidelines set forth herein are in general accordance with the Manual on Uniform Traffic Control Devices most recent edition and the subsequent rulings on requests for interpretations, changes, and experimentation, herein referred to as the MUTCD.  Clarification, elaboration, or the elimination of options of the individual items, is contained herein so that conformity of application will be promoted in Missouri. 
 
This article has a [[902.12 Glossary|glossary]] and also relates to:
 
- [[902.4 Flashers and Signals for Schools and Other Special Applications|flashers and signals for schools and other special applications]]
 
- [[902.6 Signal Indications and Signing|signal indications and signing]]
 
- [[902.9 Computer Applications|computer applications]]


- [[902.10 Signal Installations and Equipment| signal installations and equipment]]
Traffic signals are listed on the [[121.3 The Statewide Transportation Improvement Program (STIP)|Statewide Transportation Improvement Program (STIP)]] in the description of the type of improvement if there is a probability of future signal control.  If signals cannot be justified, they are to be eliminated from the program at the earliest possible date.


- [[902.11 Other Design Aspects of Traffic Signals|other design aspects of traffic signals]].
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|colspan="2"|'''Traffic Pamphlet'''
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|[[media:900 Traffic Signals.pdf|Traffic Signals]]
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There are many aspects to be considered when inspecting construction quality and this article provides [[902.19 Construction Inspection Guidelines for Sec 902|construction inspection guidelines]] and [[902.20 Material Inspection for Sec 902|guidelines for material inspections]].




[[Category: 900 TRAFFIC CONTROL]]
[[Category:900 TRAFFIC CONTROL]]

Latest revision as of 09:56, 6 January 2026

Traffic signals are electrically powered traffic control devices that warn or direct vehicular and pedestrian traffic to take some specific action. Traffic signals provide for the orderly assignment of right of way to conflicting traffic movements at intersections.

Traffic signals are not a complete solution for traffic problems. Traffic signals can sometimes create additional congestion and cause additional delay to vehicles if improperly designed, installed, or maintained. Correctly designed and operated traffic signals installed at warranted locations will provide for the orderly movement of traffic, increase the intersection capacity, and in some instances, tend to reduce accidents. Coordinating and timing signals are very important.

Traffic signals are listed on the Statewide Transportation Improvement Program (STIP) in the description of the type of improvement if there is a probability of future signal control. If signals cannot be justified, they are to be eliminated from the program at the earliest possible date.

Traffic Pamphlet
Traffic Signals

There are many aspects to be considered when inspecting construction quality and this article provides construction inspection guidelines and guidelines for material inspections.

Articles in "902 Signals (MUTCD Part 4)"

The following 28 pages are in this category, out of 28 total.

9

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