Operating Procedures For Roadway Incidents, Third Edition 2012 Flashcards
What is a “buffer space”?
The distance or space between personnel and vehicles in the protected work area and nearby moving traffic.
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What is a “taper”?
The action of merging several lanes of moving traffic into fewer moving lanes.
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What is the “transition zone?
The lanes of a roadway within which approaching motorists change their speed and position to comply with the traffic control measures established at an incident scene.
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High visibility safety apparel that meets _________, must be worn on roadway incidents.
ANSI/ISEA 107-2010 “American National Standard for High-Visibility Safety Apparel and Headwear”
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When can the designated median cross over strips marked “Authorized Vehicles Only” be used?
When the turn can be done without obstructing the flow of traffic in either direction, or when all movement has been stopped.
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The use of “Jersey” barriers shall be used when?
Only when immediate lifesaving measures are needed.
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What are the lane identification numbers?
Lane 1 = Inside
Lane 2 = Middle
Lane 3 = Outside
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How long does the Buffer Space need to be?
80’
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What is the minimum Tapper length?
What speed zones need a longer Tapper?
40’
55mph or more
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What is the “Fend-Off” position?
When the pumper is placed at an angle, pump panel towards the scene, and front wheels rotated away from the incident.
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Blocking apparatus shall be placed at least ______ feet behind the first operating unit to create a safe working area?
50’
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How long are lane markers and how much space between them?
10’ long with 30’ in-between
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What is the first color to leave the spectrum?
red
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How long does it take for light to dark vision recovery?
What about dark to light?
6 seconds
3 seconds
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At _____ car lengths away from a vehicle with its headlights on, a driver is completely blind?
- 5 car lengths
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The best combination of lights on your vehicle at night are?
Red lights = ON Pump panel lights = ON Headlights = OFF Fog lights = OFF Spot lights directed on to a traffic cone Traffic directional lights on
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1 minute of stopped traffic causes how many minutes of delay?
4 minutes
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Who notifies the Transportation Operations Center (TOC) of an accident?
local Communications Center
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What are the three Traffic Incident Levels?
Level 1 = < 30 minutes with no lane blockage or minor blockage
Level 2 = 30-120 minutes with lane blockages, but not fully closed
Level 3 = > 120 minutes for roadway is closed in any single direction with wide congestion expected
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