Method
A COGNITIVE ANALYSIS OF TRUCK DRIVERS’ RIGHT-HAND TURNS
T o b i a s S i e k e r
T h o r g e i r S k u l a s o n
K r i s t i a n S l e t t i n g
T r i n e T r o l l e
D o r t e
H a m m e r s h ø i
AGENDA
• INTRODUCTION
• METHOD
• RESULTS
• CONCLUSION
T R A F I K D A G E 2 0 1 5
Method
INTRODUCTION
Method
METHOD
ENVIRONMENT
Method
METHOD
ACTIONS
Method
RESULTS
Intersection spotted Vehicles: Speed, size, distance, placement, movements, signals, bus
numbers
Cyclists: placement, movements, visual features Pedestrians: placement, movements
Intersection: curb, curvature, road lines, distance, side roads, traffic signal color
Truck state: speed, placement, gearing, blind spots
Auditory information: engine, surroundings, blind spot camera noise Are there any cyclists going in the opposite direction of the traffic? Are there any more side streets before my right-hand turn?
How fast does the cyclist move compared to the truck?
How many cyclists are and will cross the truck's path?
Is any of the transversal traffic crossing for red?
Is it ideal to turn the indicator on?
Is the distance to the curb wide enough to not hit it when turning? Is the left end of the truck hitting cars when turning?
Is the right gear for the turn chosen?
Is the truck crossing any barrier lines?
Is the truck going to cross the barrier line?
Is there any obstacles in the course ahead?
Is there enough space for the truck to turn?
Is there room for cyclist beside the truck?
Is the cyclist aware of me?
What are the intentions of other road users?
What is present in the blind spots?
What is the distance to the car in the course ahead?
What is the ideal speed for negotiating the turn?
When is the traffic light going to change color?
Where are the pedestrians in the zebra crossing?
Where should the truck stop?
Is it possible to..
...adjust the speed?
...avoid stopping?
...seek more information?
...stop?
...turn?
...turn the indicator on?
Make a right-hand turn,...
...while avoiding accidents.
...while preserving fuel.
...while the goods are not displaced ...while performing the turn as smoothly as possible.
...while not being of hinder for other road users.
...while staying in my lane.
Should I...
...adjust speed?
...aviod stopping?
...seek more information?
...stop?
...turn?
... turn the indicator on?
How can I adjust my speed?
How can intentions be signaled to other road users?
How is the bend followed around?
What information is needed to execute the turn?
What steps are...
...needed to adjust driving according to other road users?
...needed to avoid a complete hold of the truck?
...required to be able to move out of the intersection?
...required to permit me to move into the intersection ?
