EVOC Flashcards
Why would Manitoba Conservation want better drivers?
- Liability
- Professional image
- Reduce collisions
- Reduce workplace injuries
What is the 1 second advantage?
A European study found that 80% of accidents could have been avoided if the driver had an additional second to respond. This 1 second advantage is to drive in a way that gives the driver an extra second
What are the 3 movements a vehicle can do?
B Break
S Steer
A Accelerate
Describe proper seating
Shoulders against the chair 9 & 3 hands right foot working pedals left foot on the fire wall bend in elbows bend in knees
What are the benefits of a proper seating position?
Reduce fatigue Increase awareness of road Better hand control Better foot control Improved sight and scanning
Should you be able to see the sides of the truck out of your side mirrors?
Only when you lean
5 methods to see and be seen
- Don’t drive in blind spots
- Daytime running lights in clear weather
- Headlights in bad weather
- Lights
- Sirens
What are the 4 ways a vehicle can stop / break?
- Slam on the breaks (engage ABS)
- Pump breaking (not advised)
- Threshold breaking / squeeze breaking (does not engage ABS)
- Hit something solid
What causes front wheel skid?
Under steering
What causes rear wheel skid?
Over steering
What are 5 principles of collision avoidance?
- unlock your eyes & breaks
- look for an escape route
- unlock your eyes and breaks
- break, steer, release
- pick the best of the worst
What are the main points of shoulder recovery?
- Do not break
- Ease off gas
- Regain control on shoulder
- Ease on to pavement to avoid car jerking across road
What are the main points of highway ditching?
- Do not break
- Ease off gas
- Aim 45 degrees into ditch
- Regain control and pull parallel to road with breaks
- Once control is fully gained, emerge on road
What is ABS and what does it do?
Anti lock Break System. This prevents the front wheel from locking up during a skid by mechanically simulating break pumping. Because the wheel doesn’t lock, the drive is able to continue steering while skidding.
How often should mirrors be checked?
5-8 seconds
What driving system does Man Con use?
Cooperative Driving System
What are the 4 main principles of Cooperative Driving?
- Eye lead - (4 seconds immediate responsibility / 12 seconds scanning ahead). Look where you want to go because hands follows eyes
- Critical Path - open, safe path where driver intends to travel.
- Escape Route - positioning vehicle to there is an escape route. Requires constant reevaluation.
- Being seen. Don’t travel in blindspots, use audio and visual indicators to make yourself seen.
What are the 5 main driving systems?
- Smith System
- The System (London)
- SIPDE (RCMP)
- Zone Control System
- Cooperative driving
Why is cooperative driving different than other driving systems?
- 4 concepts (eye lead, critical path, escape route, being seen)
- Incorporates all road users (pedestrians & cyclists)
- Goal oriented
- Simplifies driver responsibility
What are 3 different ways to steer?
- Palming (only for reversing)
- Hand over hand (strong)
- Shuffle steering
How closely should you follow another vehicle?
2-3 seconds in good conditions
What are all the BSA’s?
Break, steer, accelerate
Blind, stupid attitude
Be smooth always
What 4 factors can prevent all collisions?
- Eye lead
- Critical path
- Escape route
- Being seen
Same principles are Cooperative driving
Discuss the advantages and disadvantages of rear view cameras
(+)
Can see below tailgate
Lining up hitch
Backing up close
(-) False sense of security Technology can fail Useless when dirty Useless when towing Useless when tailgate is down No peripheral
Discuss traction control
- If vehicle begins to slide (yaw), TC will apply breaks to specific wheels and may reduce power from the engine
- If wheels spin on acceleration, TC reduces engine power to increase traction
If you’re stuck in the mud, do you want traction control on or off?
You want traction control off because it prevents wheels spin and when stuck, wheel spin may help you get unstuck
What is the driver triangle?
Driver, vehicle, environment
What is contact patch and why is it important?
Contact patch is the surface area of the tire that contacts the road surface where friction is created. All driver controls are transmitted to the road through the tire’s control patch
What is pitch? Give two examples
Pitch: transfer of weight under acceleration
ie. slamming on breaks = weight front of vehicle
ie. accelerating = weight back of vehicle
What is roll? Give an example
Roll: side to side (longitudinal) weight transfer
ie. turning sharp left throws weight in the vehicle right
What is yaw?
Yaw: vertical weight transfer from bottom to top
What happens if there is reduced contact patch?
Reduced contact patch = less traction = less control
What is total stopping distance?
The total distance the vehicle takes to stop from the moment a hazard is perceived to the moment the vehicle comes to a complete stop
What is the perception and reaction time (in seconds)
Perception time 1.5 seconds
Reaction time .75 seconds (half)
During 4 wheel lock up, how much steering control do you have?
0 - no steering control because the wheels are locked
What is the order of release, break, steer for
ABS vehicle
NO ABS vehicle
ABS - Break, steer, release
NO ABS - Break, release, steer (no steering input when breaking because of locked wheels)
What is the purpose of ABS?
To allow the driver to maintain steering control under max breaking application
Why is pump breaking bad?
May cause wheels to lock and does not stop a vehicle any quicker
What is break fade?
The loss of breaking efficiency due to heat build up in the breaks