Human bodies are very fragile and the effect of a collision can be very harmful. The technologies implemented to reduce the effect of a collision, generally work by increasing the length of time over which the collision happens and by reducing the energy impacted on the person. Driving is one of the areas where collisions have a large effect on human lives and so will be focused on in this essay. The main aim of the safety features is to save lives of the passenger so this is the criteria. In order to reduce the effects of a collision, cars have been; designed to have a crumple zone and crumpling components, fitted with seatbelts and fitted with air bags. Crumple zones and crumpling components are designed to crumple in the event of an accident. …show more content…
Crumple zones can also reduce the initial force on the passenger. The law of conservation of energy states that energy can only be transformed. Crumple zones transform kinetic energy into deformation energy. Before crumple zones the car body was rigid, this means less force is transferred to deformation energy before the passenger is affected. By having the crumple zones the passenger experiences far less force. (2,3) The advantages of crumple zones are lost unless you wear a seatbelt. This is because no non-zero force acts on the passenger as they are independent to the car. By wearing a seatbelt, the non-zero forces acting on the car are immediately transferred to you, increasing the time of collision. Seat belts can cause damage to the abdominal region and even minor spine problems however this is favourable as this is still a lower amount of force then if the passenger wasn’t strapped in (1). Air bags are another modern safety feature. They work by decreasing the acceleration as well, but focus on the impact between the passenger and the interior. The bags inflate by burning a nitrogenous element that rapidly releases nitrogen gas. There are vents in the bag as this allows the softer impact
In a car crash, the more weight there is, the risk of injuries drops (Williams, May Twenty-second, 2015). In most semi truck accidents (about seventy percent of semi truck accidents), when only the semi truck and trailer alone are involved, there are no deaths. But when another vehicle (such as a car, van, or pickup truck ) is involved, about ninety-eight percent of the time there is at least one fatality, which is really low compared to some other means of transportation (such as a train or an airplane) (EJustice, 2012).
Point release avalanches, or loose snow slides, begin at one point on a slope and get progressively wider as they proceed down the slope. A fundamental characteristic that must be present for this type of avalanche to occur is a surface layer of cohesionless, or nearly cohesionless, snow (University of Colorado IBS 1975; Fredston and Fesler 1994). An initially small amount of snow begins to move downward when the force of gravity is greater than the forces of cohesion at a particular angle or when debris from above starts the s...
The crumple zone is an essential part of any car that provides safety for the passengers during collusion with another car or object. Without any form of a crumple zone, passengers would be much more likely to suffer from injury or possibly death. For this same reason, crumple zones have existed in cars for years and are still being improved to this day. One way you can better understand a crumple zone is by creating a scale model. My group and I have made multiple crumple zones with trial and error to better understand them and how they work.
One moment the car in perfect condition, without so much as a scratch on its curving surface the next moment impact, sheer impact. Total destruction. In...
Tires are thrown from tires because the centrifugal force expels snow, rocks, and other foreign objects.
During side impact crashes, cars can potentially flip. Side impact crashes are said to be the most dangerous type of car crash. The rear facing seat is the best option during this type of crash. If the car flips the sides of the seats are better equipped to harness the child in the seat. The seat is able to make pivoting motions because of the attachments to keep the child in a straight line. Keeping them in a straight line reduces the risk of injuries especially in the spinal cord.By having their back straight it won't bend or come close to snapping. A rear facing car seat protects the child by using a 5- point safety harness which is a system of hooks even used for race car drivers, and flight pilots.This allows the child to stay In the seat without them fal...
When it comes to cars, there are plenty of safety features incorporated by manufactures to ensure a smooth and safe ride. Some of these features seat belts, airbags, and antilock brakes. Nowadays, there have been great improvements to technology within cars to aid in the avoidance of collisions altogether. Examples of these technologies include blind spot detection, backup cameras, 360-degree cameras, and autonomous driving. Many of these newer safety features are there to avoid collisions. However, whenever a collision does occur, there is not much there to protect passengers in the rear of the car. Looking into this, there is evidence that shows that rear passengers do obtain injuries in collisions and pose the threat of contributing to others injuries. So, why are rear passenger airbags not standard in your vehicle?
Richard Petty once said “You’ll got home safe, so drive safe, and stay safe.” Being a racing legend, he is an advocate for safe driving to minimise the cases of road crushes that have been on the rise. He double up as the chairman of the Veterans’ Safe Driving Initiative, the initiative is aimed at guiding the veterans returning from deployment on safe driving tips. It is necessarily important since the infrastructure has changed over time. Another initiative is being run in Minnesota where the teens are guided on the important safe driving tips. Study shows that more crushes are likely to occur in teen driving than veteran driving. It is also evident that young drivers are more likely to cause a crush within six months of passing the driving test and young male are worse than the females in the field.
The use of seat belts on buses is greatly being discussed throughout the states after multiple bus crashes over the years have left several children and adults dead or severely injured. A few states like New York have already taken the first step and “require the use of lap seat belts” on school buses (Johnston). School buses are not the only type of buses that need belts. One March in New York “15 passengers were killed and 18 injured on a trip home from a casino” (“Buckle Up on Buses”). Those passengers were traveling on a curbside bus which is an inner-city transportation bus.
Fig. 6 © HowStuffWorks 2002. How Seatbelts Work [online]. Available at: http://static.ddmcdn.com/gif/seatbelt-spring.gif [Accessed 17th November 2012
Crumple zones are designed to absorb the energy from the impact during a traffic collision by controlled deformation. The equation associated with the experimentation of crumple zones is I = ft (Impulses = force x time). In any given collision if, the time
Automobile accidents happen all around us. We see cars in the middle of the road after just rear ending each other. We see cars driving around town with big dents in them. Do you ever stop to wonder how car accidents happen? Physics; that’s how they happen. There are several aspects of physics that apply to automobile accidents.
For all these features any car can still crash so this report aims to make you more aware of the safety aspects of modern cars and what role they play in driving.
Crumple zones- are a structural feature used in automobiles. They help by absorbing the impact; this is by spreading the impact through parts of the car instead of in the one spot. This reflects back onto law number one, two and three. This is shown when the car hits the object it causes the car to slow down or completely stop (1). The crumble zone would protect the driver because all the energy has been diverted around the car, instead of the one spot. As a result of the cars mass and its acceleration, the force can be calculated (2). When the car crashes it’s most likely that the object w...
Road safety is one of the most important aspects of daily living. Our vehicle is our main transportation from one place to another. The number of car and motorcycle accidents seem to be increasing because of the many distractions, the lack of safety measures and judgment to road conditions and weather. Not being cautious increases the chances of not only injuring ourselves but hurting others as well. On the road, you see people talking on their cell phones or texting, eating, putting makeup on, changing the radio station, reading or using your GPS while driving. These are all distractions that endanger drivers, passengers and bystanders safety. Safe driving involves off-road precautionary measures such as making sure tires are properly inflated, testing windshield wipers, getting regular oil changes and tune-ups and adjusting the mirrors. All of these actions can help prevent an accident. Unfortunately, not all of us decide to wear our seat belts when driving or turn signal ligh...