Women are More Vulnerable to Injury in Automotive Crashes Than Men

Women are more vulnerable to injury in automotive crashes than men. As indicated in the online edited extract from Invisible Women: Exposing Data Bias in a World Designed for Men by Caroline Criado Perez (Chatto & Windus), automobiles have been designed based on data collected from crash test dummies representing the average male. Because of their smaller size and other anatomical differences, woman are less safe in the event of a crash.

New Car Assessment Programs (NCAPs) throughout the world agree that more testing is needed to ensure the safety of female vehicle occupants. We at Humanetics agree. That’s why we’ve developed the THOR5th - the most advanced frontal impact Anthropomorphic Test Device (ATD) designed to increase safety for the female population in the event of a vehicle crash. It is our mission to keep all vehicle occupants safe!

Below is an excerpt from the article: The deadly truth about a world built for men – from stab vests to car crashes by Caroline Criado-Perez The Guardian, Sat 23 Feb 2019 03.59 EST

How women are put at risk on the roads

Men are more likely than women to be involved in a car crash, which means they dominate the numbers of those seriously injured in them. But when a woman is involved in a car crash, she is 47% more likely to be seriously injured, and 71% more likely to be moderately injured, even when researchers control for factors such as height, weight, seatbelt usage, and crash intensity. She is also 17% more likely to die. And it’s all to do with how the car is designed – and for whom.

Women tend to sit further forward when driving. This is because we are on average shorter. Our legs need to be closer to reach the pedals, and we need to sit more upright to see clearly over the dashboard. This is not, however, the “standard seating position”, researchers have noted. Women are “out of position” drivers. And our willful deviation from the norm means that we are at greater risk of internal injury on frontal collisions. The angle of our knees and hips as our shorter legs reach for the pedals also makes our legs more vulnerable. Essentially, we’re doing it all wrong.

Cars have been designed using car crash-test dummies based on the 'average' male

Women are also at higher risk in rear-end collisions. We have less muscle on our necks and upper torso, which make us more vulnerable to whiplash (by up to three times), and car design has amplified this vulnerability. Swedish research has shown that modern seats are too firm to protect women against whiplash injuries: the seats throw women forward faster than men because the back of the seat doesn’t give way for women’s on average lighter bodies. The reason this has been allowed to happen is very simple: cars have been designed using car crash-test dummies based on the “average” male.

Crash-test dummies were first introduced in the 1950s, and for decades they were based around the 50th-percentile male. The most commonly used dummy is 1.77m tall and weighs 76kg (significantly taller and heavier than an average woman); the dummy also has male muscle-mass proportions and a male spinal column. In the early 1980s, researchers based at Michigan University argued for the inclusion of a 50th-percentile female in regulatory tests, but this advice was ignored by manufacturers and regulators. It wasn’t until 2011 that the US started using a female crash-test dummy – although, as we’ll see, just how “female” these dummies are is questionable.

In 2018, Astrid Linder, research director of traffic safety at the Swedish National Road and Transport Research Institute, presented a paper at the Road Safety on Five Continents Conference in South Korea, in which she ran through EU regulatory crash-test requirements. In no test is an anthropometrically correct female crash-test dummy required. The seatbelt test, one of the frontal-collision tests, and both lateral-collision tests all specify that a 50th-percentile male dummy should be used. There is one EU regulatory test that requires what is called a 5th-percentile female dummy, which is meant to represent the female population. Only 5% of women will be shorter than this dummy. But there are a number of data gaps. For a start, this dummy is only tested in the passenger seat, so we have no data at all for how a female driver would be affected – something of an issue you would think, given women’s “out of position” driving style. And secondly, this female dummy is not really female. It is just a scaled-down male dummy.

Consumer tests can be slightly more stringent than regulatory ones. The 2011 introduction of female crash-test dummies in the US sent cars’ star ratings plummeting. When I spoke to EuroNCAP, a European organisation that provides car safety ratings for consumers, they said that since 2015 they have used male and female dummies in both front-crash tests, and that they base their female dummies on female anthropometric data – with the caveat that this is “where data is available”. EuroNCAP acknowledged that “sometimes” they do just use scaled-down male dummies. But women are not scaled-down men. We have different muscle mass distribution. We have lower bone density. There are differences in vertebrae spacing. Even our body sway is different. And these differences are all crucial when it comes to injury rates in car crashes.

The situation is even worse for pregnant women. Although a pregnant crash-test dummy was created back in 1996, testing with it is still not government-mandated either in the US or in the EU. In fact, even though car crashes are the No 1 cause of foetal death related to maternal trauma, we haven’t yet developed a seatbelt that works for pregnant women. Research from 2004 suggests that pregnant women should use the standard seatbelt; but 62% of third-trimester pregnant women don’t fit that design.

Linder has been working on what she says will be the first crash-test dummy to accurately represent female bodies. Currently, it’s just a prototype, but she is calling on the EU to make testing on such dummies a legal requirement. In fact, Linder argues that this already is a legal requirement, technically speaking. Article 8 of the Treaty of the Functioning of the European Union reads, “In all its activities, the Union shall aim to eliminate inequalities, and to promote equality, between men and women.” Clearly, women being 47% more likely to be seriously injured in a car crash is one hell of an inequality to overlook.

Designers may believe they are making products for everyone, but in reality they are mainly making them for men. It’s time to start designing women in.