8.04.2008

The colors of safety

A research study reveals that the color of a car, aesthetic factors aside, can help reduce accidents. When you buy a car, engine specifications, comfort, and safety play the main role in the selection, whereas the color is pushed to the background as a mere question of taste or fashion. But have you ever considered that the color of the car could be linked to safety?
According to a study carried out by the School of Public Health of the University of Auckland, New Zealand, that choice is very important when it comes to safety, because, for example, the risk of an accident in a silver-colored vehicle is five times lower than in a black one.
This study analyzed the effect of color and the risk of accident among over a thousand drivers and determined that brown, black, and green cars are involved in more accidents, whereas grey, red, and yellow ones are less accident-prone. This is because dark vehicles tend to "blend" into the surrounding area, rendering it more difficult to "pick them out" from the environment than light-colored cars.
In order to conduct this study, influential factors such as age, experience, speed, alcohol consumption, gender, use of a safety belt, vehicle's age, and road conditions were taken into account. It was observed that those driving metallic, white, yellow, red, or blue cars were less prone to accidents than those with brown, black, or green cars. Black and green cars showed a rising increment in their accident rate.
The study showed that when driving a grey-colored car, the risk of having an accident is two-and-a-half times lower than in a brown-colored car, and that black and green vehicles have at least twice the number of accidents as grey, red, yellow, and blue cars.
Additionally, in conditions of reduced visibility due to rain or fog, bright-colored cars are up to three times more visible than dark ones. Thus, black and brown vehicles are involved in 20% more crashes when weather conditions are adverse. The investigation asserts that the accident risk for brown and black cars includes all shades.
The accident-risk ranking according to color turned out as follows: brown 70%, black 66.7%, green 60%, white 33.3%, blue 30%, yellow 26.7%, red 23.3%, grey 20%, and silver 13.3%. The principal author of the study, Sue Furness, commented that the reason for the different rates of accidents among cars "could be because grey colors are more visible in contrast with the environment."
Another study carried out in Argentina by the Center for Road Experimentation and Safety (or "CESVI", Centro de Experimentación y Seguridad Vial) analyzed drivers perceived distance toward other vehicles on the basis of their color. It has been determined that objects become visible only when reflecting the light that falls on them. But no object reflects all of the light it receives. A certain amount of this light is absorbed by it, and only part is reflected.
Different surfaces reflect light differently, despite being illuminated by the same amount of light. Light-colored surfaces reflect between 60% and 80% of the light they receive, while dark ones reflect less than 30%. The light reflected by the object is what is seen.
Taking this into consideration, it can be asserted that dark-colored vehicles are more difficult to detect, due to their considerably inferior reflection ability.

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