2011-2-18

How to determine distance between vehicles that are too practical. one, how to change lanes when overtaking car after judging the distance:
endoscopic video in the car between the size of its distance from the vehicle as follows:
1, car rearview mirror all video share - car distance of 3m;







2, total video car rearview mirror car 2/3-- distance 5m




3, total car video car rearview mirror 1/2-- distance of 9m




4, total car video car rearview mirror 1/3-- distance 12m




Second, the traffic jam before the car with the car how to judge distance:
following distance of about 2 meters in general more appropriate, likely to cause rear-end accident too close, too far away to be inserted into other vehicles.
general, according to the driver of the car from the front lines see the outline of the vehicle in front and the rear bumper to determine the location of the tire:
1, seen along the front car bumper - car distance 1m;




2, seen along the front bumper of the car - car distance of 2m;




3, see the front along the rear tires - car distance of 3m;




Third, when the first car crossing the red light you how to determine the stop line distance:
see through the windows in the car stop line and the angle of five centimeters at the front door, the car is aligned with the stop line.


Fourth, how to decide which distance from the vehicle before and after:
1, revolver position of judge
we need to know where the pressure from the revolver had to avoid the tire pressure to the solid line, the road to avoid potholes or stones. When our eyes protruding through the left wiper nodes and overlapping objects on the ground, our revolver when the move will place pressure on the object before. Example, we adopted the following figure and ground wiper centerline coincident nodes, then the tire pressure will be off line from the center.


revolver suppress the middle

2, 60 cm from the midline traveling
when our normal driving, 60 cm from the center line is relatively safe.
When our line of sight through the cotton board and the A pillar of the angle and the midline coincidence, the body is just 60 cm from the midline

60 cm from the midline body

3, to determine the location of the right wheel
When we view the right wiper and objectives through the intersection, the tire pressure from the target over

right wheel has been pressure line


4, right 60 cm from the side of the road when driving
the right side of sprinkler and surface targets overlap, the body still 60 cm away from the street


There are 60 cm away from the roadside


5, right, pull over and stop when the right wiper
and roadside nodes overlap, the direction of slightly Zola, can reach 10 cm away from the side of the road pull over effect.

10 cm away from the street