Category: Auto

Black Boxes Are No Longer Just for Planes

A black box, also known as the Cockpit Recorder or Flight Data Recorder, documents all of the data transmissions on an airplane, such as altitude, air speed, and voice and sound transmissions.  Typically, black boxes aren’t black at all.  They are brightly colored, which makes them easier to find in the wreckage following an accident.

Everyone knows that airplanes have black boxes.  What you may not know, however, is that your car may have one too.  This box, which is approximately the size of a carpenter’s tape measure, is installed in about 70 percent of all new car models.  It is usually fitted under your dashboard or seat, and it kicks into high gear when your car’s airbags are deployed.

These event data recorders (EDR) as they are known, can record information only in the 5 to 10 seconds before and after it senses an airbag is about to be deployed.  EDRs record the following data:

 

  • Vehicle speed
  • Engine speed 
  • Brake status
  • Throttle position
  • If the driver’s seat belt is on or off
  • If the passenger’s airbag is on or off
  • If the IR Warning Lamp is on or off
  • Time from vehicle impact to airbag deployment
  • Ignition cycle count at time of the crash
  • Ignition cycle count at investigation 
  • Maximum velocity before deployment
  • Velocity vs. time for frontal airbag deployment
  • Time from vehicle impact to time of maximum velocity
  • Time between the air bags about to deploy and deployment if it is within five seconds

 

Insurance carriers and police officers use the information gathered by the box to reconstruct the events leading up to a crash.  General Motors has been installing black boxes in their cars since 1999, and several other car manufacturers have been installing them since 1996.  Crash investigators, insurers, police and government researchers say such information is the cornerstone to learning how to build safer cars.  Privacy advocates say EDRs are a way to obtain data that can be used to incriminate drivers.

The controversial practice of installing black boxes in cars will become even more hotly contested when the National Highway Traffic Safety Administration issues a new rule in 2006, requiring carmakers to standardize black box technology.  The standardization will necessitate that all data is recorded and stored in the same way, which will make it is easier for researchers to recover the information.  However, only a few states have addressed the privacy concerns associated with black boxes and have enacted laws that ensure the car owner’s ownership rights to the data.

Are Men and Women Equal When It Comes to Bad Weather Driving?

The Battle of the Sexes has raged from the time Eve showed Adam she was not about to play second fiddle when she tempted him to bite that notorious apple. Since then, women have proved that they are not just a product of male spare parts. One of the most cherished arenas in the male-female competition is the ability to handle a car. Men have always felt that automobiles are in the masculine domain, pretty much like arc welding and plumbing. Women, of course, have taken a somewhat different view. Now the Chrysler Group has come along to confirm that men and women do not see eye to eye when it comes to rating each other’s driving skills.

According to its Bad Weather Driving Survey, men believe that they are better drivers than their mates. Out of 1,000 adults surveyed, sixty-eight percent of the men expressed this opinion.  Forty-nine percent of women polled think they are just as adept at driving as their male significant others. Twenty-six percent, more than one in four women, responded that they are better drivers than men.

Men and women may have rated their driving abilities differently, but the genders agreed about driving in bad weather conditions. Eighty-four percent of the men and eighty-six percent of the women chose icy roads and pouring rain as the two most difficult weather conditions to drive in. Only seven percent of the drivers surveyed chose heavy snow as the most difficult weather condition for driving. Four percent of those polled chose sleet as the most difficult condition, while three percent chose strong winds.

Oddly enough, the same situations that make male drivers uncomfortable also make female drivers nervous. Seventy percent of both men and women said the possibility of losing control of your car or having to swerve because of something unexpected in the road were the two most frightening driving situations.

Whether you are male or female, knowing how to adapt to changing road conditions can save your life. Consider the following tips:

 

  • Slow down and leave wider space cushions between you and other drivers when you encounter bad weather, glare, narrow/twisting roads, and low light conditions.
  • Remember that, even with headlights, it is extremely difficult to detect pedestrians, bicyclists, and others. Use your headlights between the hours of sunset and sunrise. For the best visibility, use your high beams when you are over 500 feet from oncoming vehicles or 300 feet behind the vehicles ahead.
  • When driving under foggy/smoky conditions, turn on your low-beam headlights and fog lights (if your vehicle is equipped with them). Be prepared to stop suddenly. If the fog or smoke becomes so thick that you cannot see well enough to keep driving, pull completely off the pavement and stop. Turn on your emergency flashers.
  • Remember that roads are extra slippery at the start of a rain shower because oil, which has risen to the road surface, has not had a chance to wash away. Heavy rains will cause more problems because your tires can begin to hydroplane, like water skis. In this case, the key to keeping your tires in contact with the road is to simply slow down. Also, keep your headlights on when it is raining at any time of day.
  • An important skill to learn in snow and ice is the controlled slide. If your vehicle begins to slide, take your foot off the gas pedal. If you have anti-lock brakes, apply them firmly. Otherwise, avoid using brakes, pumping them gently only if you are about to hit something. Steer the car into the direction of the skid to straighten out the vehicle. Then steer in the direction you wish to go.

 

Head Restraints Found Inadequate in SUVs

With rear end collisions, there is always the possibility of the victims suffering from whiplash. That’s why head restraints are so important to your safety provided they function properly.

Although the primary purpose of a head restraint is to prevent injury to your neck during a rear end crash, there are significant differences in the way head restraints are made. Some are adjustable, while others remain in a fixed position. Some adjustable restraints can be locked into position, but others are not manufactured to lock. There are also variations in height as well as the distance from the back of a person’s head.

The Insurance Institute for Highway Safety recently conducted a study of the seat/head restraint combinations in 44 current model SUVs. Only six of the models tested received a passing rating for protection against whiplash injuries in rear end crashes.

According to the study, if a seat/head restraint is well designed, it should keep the head and torso moving together during a rear end collision. When a car is struck in the rear, the seats push the occupants’ torsos forward. If the occupants’ heads are not supported properly, they will remain behind as the torso moves forward. This difference in motion between the two body parts results in the neck being snapped back. The faster the torso moves, the more sudden the movement, and the greater the forces exerted on the neck, which makes the possibility of whiplash more likely.

A head restraint needs to extend at least as high as the center of gravity of the tallest occupant’s head. A restraint should be located close to the back of an occupant’s head so it can provide support at the point of impact.

The Institute evaluated the seat/head restraints with a two-part test. First, the restraint geometry was measured to determine its height and distance from the head of an average-size man. Seats/head restraint combinations that flunked the geometry test were immediately given a poor rating because they cannot provide protection for enough different body types in rear-end crashes.  If the seat/head restraint combination was rated either good or acceptable for its geometry, it was then tested to see how it performed while in motion. The testers used a movable platform and a dummy to measure forces on the neck. This test, known as a sled test, simulates a collision in which a non-moving vehicle is struck in the rear end by a vehicle of the same weight traveling at 20 mph.

In general, the researchers found that four out of five SUV seat/head restraint combinations tested were marginal or poor in terms of whiplash protection. This was the first time the Insurance Institute for Highway Safety had tested SUV seats using a dummy to measure forces exerted on the neck during a rear-end crash.

The SUVs whose seat/head restraint combinations received an overall good rating were the Ford Freestyle, Honda Pilot, Jeep Grand Cherokee, Land Rover LR3, Subaru Forester, and Volvo XC90.  SUVs with poor ratings included such popular models as the Chevrolet TrailBlazer, Ford Explorer, and Toyota 4Runner.

Drivers Aren’t Using Turn Signals According to Survey

We all remember the experience of first learning to drive. You couldn’t wait to get on the road, so you quickly learned the driving rules to show your parents you were prepared to take your driving test. When the day of your road test finally arrived, you dutifully went through the prescribed paces, making sure to use turn signals so the test administrator would evaluate you as a safe, reliable driver. But when a driver’s license was placed in your eager hands that seemed to be the end of any need for turn signals. Or so says a survey conducted in August 2005 by Response Insurance, a national car insurer.

According to the National Driving Habits Survey, fifty-seven percent of American drivers admit they don’t use turn signals when changing lanes. The numbers revealed men as the main culprits: sixty-two percent of men don’t use signals when changing lanes, while only fifty-three percent of the women who responded admitted the same. Drivers in the 18 to 24 demographic lead the pack with seventy-one percent failing to signal. Only forty-nine percent of drivers in the 55 to 64 age group admitted to this behavior.

Despite their shared behavior, respondents admitting to non-use of turn signals often shared different reasons for this pattern. The researchers categorized drivers into groups based on their rationale for ignoring the use of signals:

 

  • Impulsive: At forty-two percent, this category represented the largest group of guilty drivers. Their reason for ignoring the use of signals is a whimsical approach to lane changing, doing so whenever the mood strikes them. They feel they don’t have enough time to both predict and then signal their impending lane change.
  • Lazy: Accounting for twenty-three percent of non-signaling drivers, this group couldn’t offer any reason other than honest laziness for failing to signal a lane change.
  • Forgetful: Seventeen percent of respondents fit this description; these drivers said they don’t use a turn signal because they forget to turn it off after the lane change.
  • Swervers: The zigzagging twelve percent in this category admitted they spend their time on the road constantly changing lanes. Their lane changes are so frequent, they felt they would be continually turning signals on and off.
  • Ostriches: The eleven percent in this group believe signaling is simply not an important act when changing lanes.
  • Followers: This category had eight percent of the guilty respondents; they believe when other drivers don’t signal, they shouldn’t have to either.
  • Dare Devils: The smallest number of drivers fell into this category. Seven percent of those who don’t signal said this style of driving adds excitement to driving.

 

Research Proves Using Seat Belts Cuts Hospital Bills

Evidence of the importance of wearing a seat belt while in a moving vehicle is not a recent discovery; many studies have been conducted to compare the hospital costs for victims of crashes that wore seat belts against those who did not wear them.   In 2001, the National Safety Council revealed that the average inpatient costs for crash victims not wearing seat belts were 50% higher than victims who were wearing seat belts during the accident.

In 2002, the National Highway Traffic Safety Administration reported that the deaths and injuries that result from not wearing a seat belt cost an estimated $26 billion annually in medical care, lost productivity and other related costs.

Recently, the Minnesota Seat Belt Coalition has been conducting its own research to determine how the use of seat belts impacts the cost of health care. Using Minnesota vehicle crash records from 2002, the group has discovered that hospital costs for unrestrained crash victims were 94% higher than hospital costs for those using seat belts. They estimated that increasing seat belt usage in Minnesota to 94% from the current rate of 84% could reduce the cost of crash-related hospital care an average of $19 million annually over the next 10 years.

Many people might wonder how a simple piece of equipment could be so effective in reducing crash-related hospital costs, and potentially save their life.  To understand how a seatbelt works, one must first examine a basic principle of physics called inertia.

Sir Isaac Newton is credited with refining the concept of inertia in his work entitled Laws of Motion. Newton’s first law stated that, “Every body perseveres in its state of being at rest or of moving uniformly straight ahead, except insofar as it is compelled to change its state by forces impressed.”  Put simply, an object will continue to move in an straight line until something interferes with its path.

Take that basic premise and apply it to a moving vehicle, which contains a driver and passengers. If a vehicle is traveling at 40 miles per hour, inertia should keep it moving forward at this pace, undisturbed. However, other factors like air resistance and friction caused by the interaction of the tires and the road surface are continually slowing it down. The car’s engine is designed to compensate for this energy loss and keep the car in continuous motion.

Separately, everything inside the car has its own inertia. Even though the passengers’ inertia is separate from the car’s inertia, while the car is traveling at 40 miles per hour, the passengers are traveling at 40 miles per hour as well. At this point, both the car and the passengers have the same inertia.

If the car were to suddenly stop because it impacted with another object, the passengers’ inertia and the car’s inertia would be completely independent. The force of the impact would bring the car to an abrupt stop, but the passengers would still be traveling at 40 miles per hour. Without a seat belt, the inhabitants would continue to move forward at 40 miles per hour until their path was obstructed, usually by a steering wheel, dashboard, or windshield. Depending on where and how the passengers landed, they could be killed instantly, injured severely, or walk away from the crash unharmed.

The deciding factor in this equation is the seat belt. A seat belt applies the stopping force to the sturdier parts of the body over a longer period of time. If it is worn correctly, it will apply the major portion of the stopping force to the rib cage and the pelvis, which are better able to handle it than other body parts. The belts extend across a wide section of the body, so the force is not concentrated on a small section of the body and cannot do as much harm as the impact of an object in the car. In addition, the flexible seat belt material stretches to keep the stop from being too sudden.

This simple piece of equipment relies on the properties of physics to save both lives and millions of dollars in health care annually.  It could save you money in taxes and health insurance costs.  The three extra seconds it takes to reach over and fasten the belt seem insignificant when you consider the many benefits of wearing it.  The next time you ride in a car, check to see if all the passengers are belted in; it could be the difference between life and death.

Tips for Older Drivers As Your Reaction Time Slows

The feeling of freedom you get while driving is one you never grow tired of. That feeling keeps people behind the wheel, even when the effects of aging make it more difficult for them to drive safely.

As you age, your ability to react lessens. Taking medications for conditions, such as high blood pressure or cardiac problems, can add to your inability to react quickly. You may experience a feeling of being lost or confused when you find yourself in an unfamiliar environment. Sometimes you may also be overwhelmed by all of the traffic signals, road signs, pedestrians and vehicles that you have to keep track of at intersections. Distances become harder to judge, and you have difficulty in determining whether you have enough room to turn or change lanes. Likewise, knowing when to merge with traffic from the on-ramp of a highway may become difficult to judge. These are all the result of the natural aging process, but you need to take extra precautions to be sure they don’t interfere with your ability to handle your vehicle.

The National Highway Traffic Safety Administration has developed the following guidelines to help older Americans drive more safely:

  • Plan your route. Drive where you are familiar with the road conditions and traffic patterns.
  • Drive during the day and avoid rush hours. Find alternative routes with less traffic.
  • Keep a safe distance between you and the car ahead. Find a marker ahead of you, such as a tree, sign or lamppost. When the car ahead of you passes this marker, count “1001, 1002, 1003, 1004.” Try to leave enough space so that you reach 1004 before your car gets to the marker.
  • When approaching intersections, remind yourself to look to roadsides, as well as directly ahead.
  • Try to make left turns at intersections where green arrow signals provide protected turns. Sometimes you can completely avoid left turns by making a right turn at the next intersection. Two more right turns should put you on the street you need.
  • Scan far down the road continuously so that you can anticipate future problems and plan your actions. A passenger can serve as a “second pair of eyes.” Be careful not to get distracted in conversation.

Many seniors are still very capable of driving, which is why a decision about a person’s ability to drive should never be based solely on age. However, changes in reflexes can put at an older driver at increased risk. If you recognize and accept these changes, you can adjust your driving habits to allow many more years of safe driving.

Tweens Need Seat Belts When Riding in the Back Seat

Child safety experts have always emphasized the vulnerability of young children in the event of a crash. Parents are continually schooled in the media about the proper use of car seats and booster seats. The federal government even established guidelines for parents of young children; recommending that parents place infants up to 20 pounds in a rear-facing child seat and toddlers weighing between 20 to 40 pounds in a child seat with a harness. Children weighing more than 40 pounds who aren’t at least 4 feet 9 inches tall should be in a booster seat.

However, when a child grew beyond 4 feet 9 inches tall, usually around the time they reached eight years old, there was no parental guidance from the government in place to protect them in the event of a crash. No longer considered as having the same level of vulnerability as they once did, children between the ages of 8 and 12 years old seemed to get lost in the cracks when it came to auto safety practices. The only recommendation the government made was to have them ride in the back seat until they reach the age of 13.

Experience proved that wasn’t enough. More than one pre-teen, or “tween,” passenger between the ages of 8 and 12 is killed in a motor vehicle crash every day and three times that number are injured, according to the Fatality Analysis Reporting System. In light of these statistics, it is no wonder that safety organizations like the Automotive Coalition for Traffic Safety are asking questions about how frequently tweens are wearing their seat belts and whether or not they’re sitting in the back seat. National fatality data demonstrate that of the more than 400 tweens killed in crashes each year, approximately half are not wearing a seat belt and one-third are riding in the front seat.

To verify these statistics, the Automotive Coalition for Traffic Safety conducted surveys in Dallas, Texas and Joplin, Missouri.  Researchers discovered that of the children polled, about one-third said they sat in the front seat. Even more significant was the fact that half of the 12-year-olds surveyed said that they sat in the front seat. About 63% of the Joplin tweens questioned said they always wore their seat belts, with 53% of the Dallas children stating the same. Surveys were completed by more than 400 children in both cities and had a margin of error of 5 percentage points.

The most alarming discovery that came out of this project was that belt usage in these two locations fell far below the national use rate of 82%. It was also successful in highlighting the problem of why tweens had such a significant death rate as a result of car crashes.

Despite so much bad news, the survey showed how easily parents could improve these results. The Joplin survey revealed a strong parental influence when it came to wearing a seat belt. Nine out of ten children whose parents always wear seat belts followed the example their parents set; however, only six out of ten children whose parents wear seat belts sporadically always wear their belts.

That’s why both the federal government and the Automotive Coalition for Traffic Safety recommend that parents serve as role models and always wear their seat belts. They also recommend using incentives like letting children choose the radio station in exchange for sitting in the back seat and wearing their seat belts. Parents should ban the use of handheld electronic games in the car if children insist upon sitting in the front. Parents also need to remind children that the law requires they wear a seat belt.

Flood Damage to Cars Isn’t Always Easy to Spot

Wherever you find disaster, you almost always find someone attempting to profit. Following hurricanes Katrina and Rita in the summer of 2005, thousands of water-damaged vehicles showed up in car lots all across the southern United States, many with no visible problems.  They were sold outside of the hurricane’s heavy-hit areas, to avoid suspicion of flood damage.  Though in excellent physical condition, these refurbished cars could still be prone to problems, which is why concealing their disastrous history is against the law.

A “flooded” vehicle is one that has been submerged or partially submerged in water to the extent that damage to the body, engine, transmission or differential occurs.  However, even though physical damage is visible within hours of the flood, it could take weeks or even months for the car to exhibit symptoms of damage with the transmission, on-board computer or electrical systems within the dashboard, anti-lock brakes, airbags, and other safety functions.

Even though most state laws require that the buyer be informed in writing of previous flood damage to a vehicle, there are still several cases each year where the buyer believed they were getting a great deal on a great car.  Despite a flawless exterior, there are other ways to spot a flood-damaged vehicle.

To prevent yourself from being taken advantage of in this situation, here are some basic guidelines in spotting a flood-damaged car:

 

  • Check the engine, trunk, glove compartment, and the floor beneath the carpeting for signs of sand, silt or moisture.
  • Examine all of the computerized and electrical components of the vehicle, including lights, gauges, air conditioning, wipers, turn signals, radio, etc.
  • If you suspect the car may be flood-damaged, ask the seller directly. 
  • If you are still unsure, have the car examined by an independent mechanic.

 

Protect Your Child While Driving

When transporting children in your vehicle (whether they are your own children or others), it is important to ensure that they are properly restrained.  Remember that cars are designed to comfortably and safely seat adult-sized passengers, and child restraints are designed to compensate for this.

In 2003, 5% of all traffic fatalities were children under 14 years old.  Most children were killed because they were not correctly placed in the seat belt, car seat, or booster, or had let themselves out of the restraint. In fact, many had been riding completely unrestrained.

It is extremely important that all children under 12 always ride in the back seat. This was true even before the arrival of airbags, and is especially true now.  Infants and young children should never be in the path of an airbag.  In the backseat, the child is also afforded more distance before they hit anything hard, in the event of a crash. 

Most states have child restraint laws, which specify the ways in which each age group should be restrained in a car.  Unfortunately, many leave a gap for children aged 6-12: children who are too large for child safety seats and too small to fit into vehicle-equipped seatbelts. The best idea is a booster seat, which boosts the child up about four inches, enough for them to fit perfectly into the seatbelt. This is recommended until the child is large enough to fit comfortably and appropriately into an adult-sized chair and seatbelt. 

Falling Asleep at the Wheel: Tips for Avoiding Driver Fatigue

There are many dangers that can contribute to car accidents, but driver fatigue is by far one of the largest.  Falling asleep behind the wheel is a serious problem, causing more than 100,000 accidents per year, according to the National Highway Traffic Safety Administration. For most of these fatigue-based crashes, the culprit is monotony on the road. Interstates and high-speed or long, rural highways, for example, are the most frequent areas where drivers fall asleep. Studies done by the NHTSA have proven that driving with fatigue is equally if not more dangerous than driving intoxicated, with very similar results: impaired reflexes, blurred vision, inability to stay focused, etc.  The NHTSA has estimated that drivers falling asleep at the wheel cost about $12.5 billion annually in insurance claims and medical costs.

There are several common-sense tips for staying awake, especially when driving long distances, or at night.

 

  • Make sure you’re well rested, beginning your trip only after having at least seven to eight hours of sleep.
  • Avoid driving alone on long-distance trips. Passengers can both share in the driving and providing conversation, which can help you stay awake.
  • Be an active driver. Avoiding prolonged use of cruise control. Using it in moderation will help you stay more alert.
  • Allow yourself ample time to reach your destination so you can take advisably frequent breaks. Try to stop about every two hours, or every 100 miles. Make a point of getting out of the car and walking at least a short distance.
  • Driving for long periods at night makes fatigue much more likely. By avoiding traveling during these hours, you escape the glaring dashboard and road lights. That alone will help decrease your risk of highway hypnosis.
  • Finally, if you’re losing the battle against fatigue, stop and sleep at a motel or well-guarded rest stop.