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Various Road Rules, Speed, Parking Rules Facts

Speed & Speed Related Fact


  • When choosing your driving speed the most important things to consider are condition of the weather, traffic, road, light, vehicle and of the driver

  • Under ordinary circumstances a car with good brakes going 50 mph can be stopped within 229 ft.

  • The speed limit in a school zone during restricted hours is 20 mph

  • If a child ran into the road 60 feet ahead of your car, the highest speed from which you could stop with good brakes before hitting him would be 20 mph

  • At 50 mph the average driver, from the moment he sees danger until he applies the brakes, will travel about 110 feet (reaction distance)

  • When approaching an intersection, bridge or railroad crossing, you should never pass on the left half of the roadway or change lanes within 100 feet

  • At 60 mph your field of vision is reduced to about 1/5 of what it is when you are still

  • The top speed limit, day or night, in TX is 70 mph

  • The main causing of skidding is bad driving judgment (+ speed)


Driving speed (MPH) and approximate distances (feet.) before complete stop
20 mph 63 ft
30 mph 109 ft
40 mph 164 ft
50 mph 229 ft
60 mph 303 ft
70 mph 387 ft


Speed & Speed Related
child 60 ft. ahead of car – can brake safely at > 20 mph
top speed school zone 20 mph
at night, dim headlights for oncoming car within 500 ft
applying brakes at a danger situation at 50 mph car will travel about 110 ft before stop
intersection, bridge, railroad crossing no passing > 100 ft.
top speed in TX 70 mph

Various Road Rules Facts


  • If you move, you should report your change of address to the DPS within 30 days

  • A minor is someone under the age of 21.

  • Pedestrians using white canes are usually blind

  • Warning signs are a diamond shape and are yellow or orange
  • To avoid accidents, a defensive driver should stay alert and look for trouble spots developing around him.

  • After passing another car on a two-lane road, you can best judge when it is safe to return back into the right lane when you can see the overtaken cars’ headlights in your rear-view mirror

  • When you hear a siren coming, you should move to the right edge of the road and stop, if possible. Do not block intersections
  • When a vehicle ahead of you stops to let a pedestrian pass in front of it, you should stay in line and wait until the vehicle ahead proceeds.

  • The most important thing in backing a car is looking back carefully

  • Top accepted blood-alcohol concentration in TX: 0.08%
  • Child passenger safety seats are required for all children under the age of 2 years.

  • When driving down a steep hill, you should shift to low gear

  • If you should have an accident in which someone is injured, you should examine he injured with great care and send for skilled help

  • When driving long distances you should rest 10 minutes for every 2 hours of driving

  • If you run off the pavement, you should steer straight and slow down before attempting to return to the pavement

  • It is usually safe to get out of the car on the curb side of street

  • If you must walk on the roadway, you should walk on the left side to see oncoming cars or on a sidewalk whenever possible

  • If you have a blow-out while driving you should: take your foot off the accelerator, grasp the steering wheel hard and slow to a stop

  • Cars registered in TX must be inspected once a year (State inspection)

  • If you run over or hit someone and kill them while driving under the influence of alcohol, the penalty will be involuntary manslaughter.
  • The rider of a bicycle observes all signs, signals, and traffic laws.
  • It is a violation of state law for pedestrians to stand in the roadway for the purpose of soliciting a ride.
  • When entering a street from a private alley or driveway, you must stop only when turning left.
  • Alcohol affects a driver by slowing down reaction and impairing vision, interfering with concentration and dulling judgement, creating a false sense of confidence.
  • If you are required to show proof of financial responsibility for the future, proof must be kept up for 2 years.
  • When making a long trip, you should stop for rest about every two hours or 100 miles. 
  • If you have an accident in which someone is injured, you should: Carefully help anyone who might be hurt and send for skilled help as quickly as possible.

  • You may lawfully allow an object to extend beyond the left fender of your car only 3 inches

  • Your chances of being injured when not wearing your seat belt are 5 times greater

  • The minimum tread depth for tires is 2/32 of an inch
  • Move the car off the paveway, turn on emergency warning lights, and tie a white cloth where visible or raise your hand.

  • If another driver crowds you in traffic, you should move out of your lane to avoid an accident
  • If a traffic signal changes while a pedestrian is still in the street pedestrian has the right of way. 
  • Seat belts keep you from getting thrown out of your car, hitting th dashboard too hard, and in control of your car.
  • If a pedestrian is crossing at an intersection where there are no traffic controls, you should stop and give him the right of way.
  • If you must walk on the highway, you should walk on the side that has the widest shoulders.
  • Green arrow showing with a red traffic light means you may go ahead = proceed carefully in the direction of the arrow, yielding the right-of-way to other vehicles and pedestrians.
  • If a pedestrian is crossing the street in an unmarked crosswalk, you should yield the right of way.
  • When you are caught behind a very slow truck going up a long hill, you should stay behind the truck until you reach the top of the hill and the way is clear.

  • When you wish to make a turn you should signal at least 100 feet before the intersection and be in the correct lane half block before the intersection



Driving speed… (mph) and your field of vision
0 180o or more
20 2/3 of total field of vision
40 2/5 of total field of vision
60 1/5 of total field of vision
minimum tire tread depth 2/32 of an inch
top blood-alcohol concentration in TX 0.08%
no Seat belt 5x more chance injury
change of address (move) you have 30 days to report change

Parking Rules Facts


  • A vehicle should never park within 15 ft of a fire hydrant (ca. 4m)
  • Do not park within 30 feet of a traffic light or stop sign
  • Parallel parking is a test of maneuverability (6” to 18” from the curb)
  • When parking parallel, it is best to leave the curb side wheels 6 to 18 inches from the curb.
  • Parallel parking is a test of maneuverability (6” to 18” from the curb)
  • Parking lights or lower beam headlights should be used when parked on the highway at night.
  • When parking near a corner, you may park your car no closer than 20 feet from the crosswalk.
  • Car parked on the side of a highway at night should show manual flashlights front & rear.
  • After parking your vehicle, for the greatest safety, you should exit your vehicle on the curb side.
  • When parking on a hill headed down, it is best to turn your front wheels to the curb


Parking Rules
from fire hydrant > 15 ft
from crosswalk > 20 ft
from traffic light / stop sign > 30 ft
railroad crossing > 50 ft
parallel parking (from curb) 6” to 18”

DMV Practice Permit Test Study Guide

You can find everything you need to pass your Learner's Permit or Driver's License test that includes more than driving test 500+ questions. Free and unlimited practice tests questions and answers. This Learners Permit Study Guide helps you to get ready for your Learners Permit (driving permit). Learners permit practice test prep includes traffic signs and signals questions almost identical to the real test. Get ready for your permit test today!

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