13-09 Temporary Traffic Control Flashcards
What was created to help establish guidelines andprocedures for organizations in recognition that all unplanned road closures are unique in nature?
the Ontario Traffic Monagement Book 7
Why is establishing initial traffic control a size- up priority?
- takes time
2. based on critical needs of incident
When is the greatest risk to personnel during traffic management? (2)
- set-up
2. takedown
How can apparatus establish a safe working zone? (2)
- staging
2. placing of apparatus
Safe Working Zone?
determined area by IC where rescue, extrication or FF activities take place?
Blocker Vehicle
apparatus placed usually 30m and/ or 4m per 10k/h posted speed limit to protect personnel
What must apparatus have to be considered blocker vehicle? (2)
- 6800kg mass
2. equipped with rear mounted arrow board
Fend- Off position
positioned apparatus in such a way as to deflect approaching vehicles
HVSA
High Visibility Safety Apparel (safety vest) located in cab
OTM
Onatraio Traffic Managment= Book 7
Lateral buffer
area created alongside an incident
What is minimum number of trucks dispatched to MVCs?
2
What vehicle is used as blocker to immediately protect incident?
1st arriving vehicle
When should consideration be made to increase placment distance of vehicles above the 30m or 4m per 10km/h of posted speed? (4)
- curves
- crests of hills
- weather
- darkness
Whom shall be notified when traffic control/ road closure is needed?
police
At what speeds does risk to rescuers significantly increase?
above 70km/h
What lights shall be turned off where possible? (3)
- headlights
- flood lights
- opticom
What must be done with front wheels of blocking vehicle and why? (2)
- turned
2. so as not to be pushed into emergency scene/ traffic
What is req’d to be worn when there is risk from moving vehicle traffic?
HVSA
When can personnel NOT wear HVSA but still must be working within established safe working zone?
- wearing SCBA
2. wearing Hazmat PPE
What can be used to create a taper and lateral buffee space?
cones, flares
What is minimum distance of a live lane can personnel work?
3m
What resources should be used while setting/ removing taper zone or lateral buffer area? (2)
- spotter
2. facing oncoming traffic
What are areas must have at least .5m spacing? (2)
- lateral buffer space from traffic
2. traffic cone spacing from back of apparatus
What is maximum spacing of traffic cones?
3m
When are flares recommended?
low light/ reduced visibility conditions
What are actions to be taken to avoid crossing high-speed traffic lanes on foot? (3)
- re-position apparatus
- call for additional apparatus that can respond to proper location
- close road utilizing blocker vehicle, if no other alternatives
How many paths are allowed for same-direction vehicular traffic?
one
Why should land closures be minimized? (2)
- prevent traffic back-up
2. secondary collisions
What should IC consider when determining expected duration of incident (5)
- severity of incident
- location
- traffic conditions (volumer/ speed)
- weather
- visibility
What is primary function of support vehicle used as temporary traffic control?
to create a warning device and/ or barrier to oncoming vehicles
What is +1 blocking?
Blocker vehicles protecting one more lane of traffic than affected buy incident on highways with 90km/h speeds or greater
What resources should IC consider on highways w/ speeds of 90km/h or greater? (3)
- crash trucks
- heavy trucks
- trailers w/ rear- mounted energy absorption attentuation
What should be used in place of cones for lane closures on highways with 90km/h speeds +?
vehicles w/ appropriate lighting and traffic arrows
When can safety cones be deployed on highways w/ speeds of 90km/h + ? (3)
- unless traffic has slowed down
- extra channeling is required
- IC determined safe to do so
