Related Experiment Video
Updated: Jun 9, 2026

07:30
A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
Published on: September 21, 2017
Fatal car occupant injuries after car lorry collisions
British Medical Journal
|August 27, 2010
Summary
Collisions between cars and lorries are a leading cause of road accident fatalities for car occupants. Improving lorry visibility and separating traffic could significantly reduce these deaths.
Area of Science:
- Traffic safety research
- Accident analysis
- Road safety engineering
Background:
- Road accidents involving collisions between cars and lorries represent a significant cause of mortality for car occupants.
- These accidents are particularly prevalent on motorways and link roads.
Purpose of the Study:
- To analyze the circumstances and outcomes of deaths resulting from car-lorry collisions.
- To identify factors contributing to the severity of injuries in these specific types of road accidents.
Main Methods:
- Analysis of 224 road accident fatalities involving car occupants in collisions with lorries.
- Examination of accident data from specific geographical areas and time periods.
Main Results:
- Car-lorry collisions are the most frequent cause of death for car occupants on motorways and link roads.
- Impacts in these collisions offer limited protection from current occupant restraint systems.
- Collisions with the rear of lorries, often occurring at night, result in the most severe injuries.
Conclusions:
- The incompatible traffic characteristics of cars and lorries heighten collision risks and injury severity.
- Enhancements such as increased lorry conspicuity and elimination of rear overhang may reduce fatalities.
- Fundamental solutions include segregating car and lorry traffic and shifting freight back to railways.
Related Concept Videos
Types of Collisions - II
When two or more objects collide with each other, they can stick together to form one single composite object (after collision). The total mass of the object after the collision is the sum of the masses of the original objects, and it moves with a velocity dictated by the conservation of momentum. Although the system's total momentum remains constant, the kinetic energy decreases, and thus such a collision is an inelastic collision. Most of the collisions between objects in daily life are...
Elastic Collisions: Case Study
Elastic collision of a system demands conservation of both momentum and kinetic energy. To solve problems involving one-dimensional elastic collisions between two objects, the equations for conservation of momentum and conservation of internal kinetic energy can be used. For the two objects, the sum of momentum before the collision equals the total momentum after the collision. An elastic collision conserves internal kinetic energy, and so the sum of kinetic energies before the collision equals...
Types Of Collisions - I
When two objects come in direct contact with each other, it is called a collision. During a collision, two or more objects exert forces on each other in a relatively short amount of time. A collision can be categorized as either an elastic or inelastic collision. If two or more objects approach each other, collide and then bounce off, moving away from each other with the same relative speed at which they approached each other, the total kinetic energy of the system is said to be conserved. This...
Collisions in Multiple Dimensions: Problem Solving
In multiple dimensions, the conservation of momentum applies in each direction independently. Hence, to solve collisions in multiple dimensions, we should write down the momentum conservation in each direction separately. To help understand collisions in multiple dimensions, consider an example.
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
A small car of mass 1,200 kg traveling east at 60 km/h collides at an intersection with a truck of mass 3,000 kg traveling due north at 40 km/h. The two vehicles are locked together. What is the...
Elastic Collisions: Introduction
An elastic collision is one that conserves both internal kinetic energy and momentum. Internal kinetic energy is the sum of the kinetic energies of the objects in a system. Truly elastic collisions can only be achieved with subatomic particles, such as electrons striking nuclei. Macroscopic collisions can be very nearly, but not quite, elastic, as some kinetic energy is always converted into other forms of energy such as heat transfer due to friction and sound. An example of a nearly...
Burn Injuries
Burn injuries occur when the skin and underlying tissues are damaged due to exposure to heat, electricity, chemicals, radiation, or friction. They can vary in severity, from minor superficial burns to severe deep burns that can be life-threatening.
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...
