SERIES OF EVENTS (CHAPTER 2) Flashcards
WHAT ARE PRE TRIP EVENTS?
POINTS IN TIME OR CONDITIONS THAT EXISIT BEFORE A VEHICLE IS DRIVEN
WHAT ARE TRIP EVENTS?
OCCUR DURING THE TIME THAT THE VEHICLE IS DRIVEN UP TO THE COLLISION SEQUENCE OF EVENTS
ARE TRIP EVENTS INCLUDED IN THE “ON SCENE” SERIES OF EVENTS?
NO
WHAT IS POINT OF POSSIBLE PERCEPTION?
THE POINT ALONG THE TRAVEL PATH WHERE THE HAZARD COULD FIRST BE SEEN BY A DRIVER
WHAT IS POINT OF ACTUAL PERCEPTION?
THE POINT ALONG THE TRAVEL PATH WHERE THE DRIVER ACTUALLY DETECTS A HAZARD EXISTS
WHAT IS PERCEPTION DELAY?
THE TIME BETWEEN POINT OF POSSIBLE AND ACTUAL PERCEPTION
WHAT IS A REACTION?
A VOLUNTARY OR INVOLUNTARY RESPONSE TO A DETECTION OF A HAZARD.
WHAT IS REACTION TIME?
THE TIME PERIOD FROM POINT OF ACTUAL PERCEPTION UNTIL THE START OF EVASIVE ACTION
WHAT IS REACTION DISTANCE?
THE DISTANCE FROM ACTUAL PERCEPTION TO START OF EVASIVE ACTION
WHAT IS EVASIVE ACTION?
THE ACTION(S) TAKEN BY A DRIVER TO AVOID OR MINIMIZE A POTENTIAL COLLISION
WHAT IS POINT OF NO ESCAPE?
THE POINT-A PLACE AND TIME- WHICH A CRASH CANNOT BE AVOIDED/PREVENTED
WHAT IS ENCROACHMENT?
THE POINT WHERE ONE TRAFFIC UNIT INTRUDES OR INTERFERES WITH THE TRAVEL PATH OF A 2ND TRAFFIC UNIT
WHAT IS POINT OF FIRST CONTACT?
THE POINT OF FIRST TOUCH BETWEEN 2 TRAFFIC UNITS
WHAT IS THE IPTM ASSIGNED REACTION TIME FOR DAYLIGHT AND NIGHT TIME?
DAYLIGHT- 1.6 SECONDS
NIGHT TIME- 2.5 SECONDS
WHAT IS MAXIMUM ENGAGEMENT?
THE POINT AT WHICH THE MAXIMUM PENETRATION HAS BEEN REACHED BETWEEN COLLIDING VEHICLES