Lecture1, you were absent

Question 1

Dont look at the power point just study these

Answer 1

True

Question 2

Perception and reaction and process

Answer 2

You have 4 phases in the perception reaction process:
1-Detection
2-Identification and understanding of the object
3-Decision
4- Reaction

Question 3

Perception- reaction time ,

Answer 3

P-R time = Perception- reaction time
it varies between 0.5-7 secs but we take it as 2.5 s according to asshtoo.
NOte that 2.5s includes the time that needs the driver to ““start”” breaking or accelerating however it doesnt include the time for the driver to get to a stop

Question 4

pedestrian speed when designing traffic light

Answer 4

1.2m/s