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Safe Driving Techniques
This category is for all questions and answers about the do’s and don’ts of the road, as well as tips for safe driving skills.
2,050 Questions
Can you pass in an intersection?
No.
It's not allowed because motorist taking a right hand turn may think your in the far land and drive out in front of you when you merge.
Can Being in a crash at 30 MPH has the equivalent force of being dropped off a four story building?
NO,
Let's break it down into terms that are easily to calculate:
30mph = 13.4 m/s
A four-story building is ~ 12meters high. The speed (final velocity) something reaches when it drops off 12meters is:
Vf = sqrt(2AD - Vi) = sqrt(2*9.8*12 - 0) = 15.336 m/s
so driving 30mph and dropping 4 stories is about the same speed. (~15m/s)
However, when you hit the ground off a building, you have a sudden impact, which lasts ~1/50 of a second.
In a Car, they are designed to have a "crumple zone" which means the front of the car will actually crumple and spread the impact over a little more time like ~1/10 of a second.
The longer impact time of a car will actually lessen the equivalent force, whereas the sudden smacking of the ground is a higher equivalent force.
Let's assume you weight 75kg = 165lbs
Since F = mass*acceleration, normally you feel 75*9.8= 735N on your feet
The moment your car crashes is:
F = mass*∆Velocity/time = 75kg*15m/s / (1/10) = 11250N
convert to pounds: 11250N/4.45 = 2528lbs
The moment you hit the ground when falling is:
F = 75kg*15m/s / (1/50) = 56250N
converted to pounds: 56250N/4.45 = 12,640lbs.
SO really, falling 4stories is 5x worse than getting in a 30mph car crash.
When parking uphill where there is no curb you should point your front wheels?
Toward the shoulder. If you are parked on the right side of the road.
Why are mountain roads always winding up and never have a steep gradient?
A winding road puts less load on an engine, transmission, and cooling system of a vehicle , and allows more cars to successfully traverse it at a safe speed than a steep gradient. Additionally, it's safer to build because construction equipment plummeting down a hill while trying to make a steep road is never a good thing.
In what form do Negative thoughts occur while driving?
Negative thoughts while driving can manifest as worries about safety, anxiety about being late, or frustration with other drivers. These thoughts may lead to self-criticism, such as questioning one's driving skills or decision-making. Additionally, they can result in distractions, making it harder to focus on the road. Overall, such thoughts can heighten stress and impair driving performance.
When can you pass a vehicle on the right?
When passing is prohibited: Passing to the right is dangerous and a motor vehicle may overtake and pass to the right of another vehicle only under the following conditions:
(a) When the vehicle overtaken is making or about to make a left turn.
(b) Upon a highway within a business or residence district with unobstructed pavement of sufficient width for two or more lines of moving vehicles in the direction of travel.
(c) Upon any highway outside of a business or residence district with unobstructed pavement of sufficient width and clearly marked for two or more lines of moving traffic in the direction of travel.
(d) Upon a one-way street.
(e) Upon a highway divided into two roadways where traffic is restricted to one direction upon each of such roadways. (VC 21754)
Those laws vary from place to place. Common courtesy dictates to dim your lights well before they reach the oncoming vehicle.
How often can you take a defensive driving course in New York City?
You can take a defensive driving course as often as you want. If you are submitting it to the insurance company, the discount is valid for 3 years from the date you passed the course.
What to do When you approach a school bus from behind?
Keep extra distance (4-5 car lengths) because the size takes away from your vision and the driver can't see you as well.
If the yellow lights start flashing slow down and be ready to stop.
The bus is either dropping off/picking up kids or stopping at train tracks.
What makes cats eye road reflectors work?
Cat's eyes are retro-reflective markers used to indicate lane boundaries. A reflective bead is set in a housing which is affixed to the roadway. The light from oncoming vehicles is reflected back at the vehicle.
they reflect the light using the law of incidence.
How many inchesmust you be parallel parked from the curb?
Most states specify no more than 12 inches from curb.
In San Fransisco, you must turn the front tires in or out while parked or be ticketed. This is an old law that still applies today as a car can roll down hill especially if it is a stick shift and the park brake don't hold good.
How do the car safety features of modern cars differ from early cars?
Stop signs were updated to become timed traffic signals.
Seat belts were pretty much non-existent in the 1950s and it was the same with roll bars.
Now we have airbags (front AND side) and heavier structural steel reinforcement in the bodies of the cars.
Brakes first became Power Brakes and are now ABS.
Steering became Power Steering.
And the human brain (which directs the car) has a lot more statistical information available to support safer driving habits.
Which way should you turn your wheels when there is no curb?
Headed either uphill or downhill when there is no curb, turn the wheels so the vehicle will roll away from the center of the road if the brakes fail.
What is the shoulder of a road?
The side of the road - the bit you would go to if a policeman asked you to pull over.
Is it possible to drive an automatic car using left foot only?
Yes it's very possible. Normally mail persons drive this way sitting on the right seat. It is simple to do that same thing in the left seat. Normally if you have the use of the right foot though it is the safest to use the right. However if it is unavailable, I see no reason the left couldn't be used except slightly less cooridination would be the problem. You would have to drive accordingly in this case.
White
at least 2m
Is there anyway to get your license early?
Go work for like the CIA or something and they teach you how to drive
Is there an online study guide for drivers ed?
Use driveredtogo.com its super cheap and easy. Use this code for a discount X58-258-MDM :) I used the course and its really good. It goes in-depth into very important subjects such as safety.
