RollerA at 19:06, 25 November 2025

2025-11-25T19:06:08Z

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	'''Volume '''- The number of persons or vehicles passing a point on a lane, roadway, or other trafficway during some time interval.		'''Volume '''- The number of persons or vehicles passing a point on a lane, roadway, or other trafficway during some time interval.

	[[File:902.~~12_Truck~~.jpg\|right\|150px\|alt=]]		[[File:Figure 902.25.3.jpg\|right\|150px\|alt=]]

	'''Volume Classification '''- Summary of vehicle types (i.e. trucks, buses, cars) by percentage of volume.		'''Volume Classification '''- Summary of vehicle types (i.e. trucks, buses, cars) by percentage of volume.

RollerA at 19:04, 25 November 2025

2025-11-25T19:04:40Z

← Older revision		Revision as of 14:04, 25 November 2025
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	<center>		<center>
	{\| style="display:inline;display: inline-table;"		{\| style="display:inline;display: inline-table;"
	\| [[File:~~902.12_LOS_A~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS A''']] \|\|		\| [[File:LOS A.jpg\|thumb\|center\|200px\|alt=\|'''LOS A''']] \|\|
	\| [[File:~~902.12_LOS_B~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS B''']] \|\|		\| [[File:LOS B.jpg\|thumb\|center\|200px\|alt=\|'''LOS B''']] \|\|
	\| [[File:~~902.12_LOS_C~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS C''']] \|\|		\| [[File:LOS C.jpg\|thumb\|center\|200px\|alt=\|'''LOS C''']] \|\|
	\|-		\|-
	\| [[File:~~902.12_LOS_D~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS D''']] \|\|		\| [[File:LOS D.jpg\|thumb\|center\|200px\|alt=\|'''LOS D''']] \|\|
	\| [[File:~~902.12_LOS_E~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS E''']] \|\|		\| [[File:LOS E.jpg\|thumb\|center\|200px\|alt=\|'''LOS E''']] \|\|
	\| [[File:~~902.12_LOS_F~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS F''']] \|\|		\| [[File:LOS F.jpg\|thumb\|center\|200px\|alt=\|'''LOS F''']] \|\|
	\|}		\|}
	</center>		</center>

RollerA at 18:58, 25 November 2025

2025-11-25T18:58:36Z

← Older revision		Revision as of 13:58, 25 November 2025
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	'''Combination Lane '''- See Shared Lane.		'''Combination Lane '''- See Shared Lane.

	[[File:902.~~12_Commission~~.jpg\|thumb\|right\|300px\|'''Missouri Highway and Transportation Commission''']]		[[File:Figure 902.25.2.jpg\|thumb\|right\|300px\|'''Missouri Highway and Transportation Commission''']]

	'''Commission '''- Missouri Highway and Transportation Commission, a group appointed by the governor of Missouri to oversee MoDOT operations. The term may also indicate MoDOT as a whole.		'''Commission '''- Missouri Highway and Transportation Commission, a group appointed by the governor of Missouri to oversee MoDOT operations. The term may also indicate MoDOT as a whole.

RollerA at 18:57, 25 November 2025

2025-11-25T18:57:07Z

← Older revision		Revision as of 13:57, 25 November 2025
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	[[File:902.12.jpg\|right\|380px]]		[[File:Figure 902.25.1.jpg\|right\|380px]]
	'''85th Percentile Speed '''- The speed at which 85% of the traffic is traveling at or below.		'''85th Percentile Speed '''- The speed at which 85% of the traffic is traveling at or below.

TaracksA at 20:29, 13 October 2025

2025-10-13T20:29:22Z

TaracksA at 18:24, 6 October 2025

2025-10-06T18:24:24Z

← Older revision		Revision as of 13:24, 6 October 2025
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	'''Warrants '''- A warrant describes a threshold condition based upon average or normal conditions that, if found to be satisfied as part of an engineering study, shall result in analysis of other traffic conditions or factors to determine whether a traffic control device or other improvement is justified. Warrants are not a substitute for engineering judgment. The fact that a warrant for a particular traffic control device is met is not conclusive justification for the installation of the device.		'''Warrants '''- A warrant describes a threshold condition based upon average or normal conditions that, if found to be satisfied as part of an engineering study, shall result in analysis of other traffic conditions or factors to determine whether a traffic control device or other improvement is justified. Warrants are not a substitute for engineering judgment. The fact that a warrant for a particular traffic control device is met is not conclusive justification for the installation of the device.

	[[Category:902 Signals\|902.25]]		[[Category:902 Signals (MUTCD Part 4)\|902.25]]

TaracksA: Page Creation

2025-09-17T21:39:06Z

Page Creation

Show changes

← Older revision		Revision as of 14:04, 25 November 2025
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	<center>		<center>
	{\| style="display:inline;display: inline-table;"		{\| style="display:inline;display: inline-table;"
	\| [[File:~~902.12_LOS_A~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS A''']] \|\|		\| [[File:LOS A.jpg\|thumb\|center\|200px\|alt=\|'''LOS A''']] \|\|
	\| [[File:~~902.12_LOS_B~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS B''']] \|\|		\| [[File:LOS B.jpg\|thumb\|center\|200px\|alt=\|'''LOS B''']] \|\|
	\| [[File:~~902.12_LOS_C~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS C''']] \|\|		\| [[File:LOS C.jpg\|thumb\|center\|200px\|alt=\|'''LOS C''']] \|\|
	\|-		\|-
	\| [[File:~~902.12_LOS_D~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS D''']] \|\|		\| [[File:LOS D.jpg\|thumb\|center\|200px\|alt=\|'''LOS D''']] \|\|
	\| [[File:~~902.12_LOS_E~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS E''']] \|\|		\| [[File:LOS E.jpg\|thumb\|center\|200px\|alt=\|'''LOS E''']] \|\|
	\| [[File:~~902.12_LOS_F~~.jpg\|thumb\|center\|200px\|alt=\|'''LOS F''']] \|\|		\| [[File:LOS F.jpg\|thumb\|center\|200px\|alt=\|'''LOS F''']] \|\|
	\|}		\|}
	</center>		</center>

← Older revision		Revision as of 15:29, 13 October 2025
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	'''Barrier (Compatibility Line) '''- A reference point in the preferred sequence of a dual-ring controller at which both rings are interlocked. Both rings cross the barrier simultaneously to select and time phases on the other side.		'''Barrier (Compatibility Line) '''- A reference point in the preferred sequence of a dual-ring controller at which both rings are interlocked. Both rings cross the barrier simultaneously to select and time phases on the other side.

	'''Basic Lighting '''- Roadway lighting provided only at potential conflict areas of an intersection or interchange		'''Basic Lighting '''- Roadway lighting provided only at potential conflict areas of an intersection or interchange.

	'''Baud Rate '''- The input rate of data transmission to a communications channel, usually expressed in bits per second.		'''Baud Rate '''- The input rate of data transmission to a communications channel, usually expressed in bits per second.

	'''~~Buss~~ Interface Unit (BIU) '''- A device in a controller cabinet that converts analog inputs to serial communications data and serial data to analog outputs to interface with various cabinet components.		'''Bus Interface Unit (BIU) '''- A device in a controller cabinet that converts analog inputs to serial communications data and serial data to analog outputs to interface with various cabinet components.

	'''Cabinet '''- An outdoor enclosure for housing the controller unit and associated equipment.		'''Cabinet '''- An outdoor enclosure for housing the controller unit and associated equipment.
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	'''Detection Zone '''- The area of the roadway within which a vehicle will be detected by a vehicle detector.		'''Detection Zone '''- The area of the roadway within which a vehicle will be detected by a vehicle detector.

	'''Detector '''- An electrical or electronic device which when actuated signifies the passing or presence of a vehicle or pedestrian desiring the right of way. (See specific detectors: vehicle or pedestrian.		'''Detector '''- An electrical or electronic device which when actuated signifies the passing or presence of a vehicle or pedestrian desiring the right of way. (See specific detectors: vehicle or pedestrian)

	'''Detector Amplifier '''- A device that is capable of intensifying the electrical energy produced by a sensor. An example is a magnetic detector amplifier. A loop detector unit is commonly called an amplifier, although its electronic function actually is different.		'''Detector Amplifier '''- A device that is capable of intensifying the electrical energy produced by a sensor. An example is a magnetic detector amplifier. A loop detector unit is commonly called an amplifier, although its electronic function actually is different.
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	'''Emission '''- Portion of vehicle exhaust considered hazardous to the environment.		'''Emission '''- Portion of vehicle exhaust considered hazardous to the environment.

	'''Engineering Judgment '''- ~~the~~ evaluation of available pertinent information, and the application of appropriate principles, provisions, and practices as contained in the EPG and other sources, for the purpose of deciding upon the applicability, design, operation, or installation of a traffic control device. Engineering judgment shall be exercised by an engineer, or by an individual working under the supervision of an engineer, through the application of procedures and criteria established by the engineer. Documentation of engineering judgment is not required.		'''Engineering Judgment '''- The evaluation of available pertinent information, and the application of appropriate principles, provisions, and practices as contained in the EPG and other sources, for the purpose of deciding upon the applicability, design, operation, or installation of a traffic control device. Engineering judgment shall be exercised by an engineer, or by an individual working under the supervision of an engineer, through the application of procedures and criteria established by the engineer. Documentation of engineering judgment is not required.

	'''Engineering Study '''- ~~the~~ comprehensive analysis and evaluation of available pertinent information, and the application of appropriate principles, provisions, and practices as contained in the Engineering Policy Guide and other sources, for the purpose of deciding upon the applicability, design, operation, or installation of a traffic control device. An engineering study shall be performed by an engineer, or by an individual working under the supervision of an engineer, through the application of procedures and criteria established by the engineer. An engineering study shall be documented.		'''Engineering Study '''- The comprehensive analysis and evaluation of available pertinent information, and the application of appropriate principles, provisions, and practices as contained in the Engineering Policy Guide and other sources, for the purpose of deciding upon the applicability, design, operation, or installation of a traffic control device. An engineering study shall be performed by an engineer, or by an individual working under the supervision of an engineer, through the application of procedures and criteria established by the engineer. An engineering study shall be documented.

	'''Exclusive Movement '''- A movement at a signal that runs without any other movements being allowed to proceed.		'''Exclusive Movement '''- A movement at a signal that runs without any other movements being allowed to proceed.
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	'''HCM '''- Highway Capacity Manual. Publication by the Transportation Research Board (TRB)		'''HCM '''- Highway Capacity Manual. Publication by the Transportation Research Board (TRB)

	'''Hertz '''- ~~(Hz)~~ Cycles per second.		'''Hertz (Hz) '''- Cycles per second.

	'''Hold '''- A command that retains the existing right of way.		'''Hold '''- A command that retains the existing right of way.
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	'''Last Car Passage '''- A feature option on many controllers providing full passage time increment for the vehicle crossing the detector after the allowable gap has timed out.		'''Last Car Passage '''- A feature option on many controllers providing full passage time increment for the vehicle crossing the detector after the allowable gap has timed out.

	'''Lead-In Wire '''- (Loop Lead-In) The portion of the loop wire between the physical edge of the loop and the pull box; for a magnetic detector and magnetometer it is the wire ~~runnig~~ from the sensor (probe) to the pull box.		'''Lead-In Wire '''- (Loop Lead-In) The portion of the loop wire between the physical edge of the loop and the pull box; for a magnetic detector and magnetometer it is the wire running from the sensor (probe) to the pull box.

	'''Lead-In Cable '''- (Feeder Cable, Home-Run Cable, Transmission Line) The electrical cable connecting the lead-in wire to the input of the loop detector unit.		'''Lead-In Cable '''- (Feeder Cable, Home-Run Cable, Transmission Line) The electrical cable connecting the lead-in wire to the input of the loop detector unit.
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	'''Steady Signal Indication '''- Indication that is constantly illuminated.		'''Steady Signal Indication '''- Indication that is constantly illuminated.

	'''Stop Bar '''- Thick white line that designates the appropriate stopped location		'''Stop Bar '''- Thick white line that designates the appropriate stopped location.

	'''Stop Time '''- A feature in many intersection controls permitting the application of an external signal to stop any one or all interval timers in their current state.		'''Stop Time '''- A feature in many intersection controls permitting the application of an external signal to stop any one or all interval timers in their current state.
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	'''Storage '''- Ability of a lane to keep waiting vehicles out of the way of moving traffic, expressed in either feet or number of vehicles.		'''Storage '''- Ability of a lane to keep waiting vehicles out of the way of moving traffic, expressed in either feet or number of vehicles.

	'''System Reference (~~offset~~ Break) '''- An output or signal during coordinated operation that starts the offset timer.		'''System Reference (Offset Break) '''- An output or signal during coordinated operation that starts the offset timer.

	'''System, Signal '''- Network of two or more signals in coordination.		'''System, Signal '''- Network of two or more signals in coordination.

902.25 Glossary - Revision history

RollerA at 19:06, 25 November 2025

RollerA at 19:04, 25 November 2025

RollerA at 18:58, 25 November 2025

RollerA at 18:57, 25 November 2025

TaracksA at 20:29, 13 October 2025

TaracksA at 18:24, 6 October 2025

TaracksA: Page Creation