How the public feel about the trolley dilemma and driverless cars

driverless-trolleyThe trolley problem has been a staple of discussions around ethics for some time now.  If you’re not familiar with it, it was a thought experiment whereby participants are placed in a dilemma whereby a rail trolley is loose on the tracks, with five people tied to the tracks ahead of it.

You’re stood next to a lever that can divert the trolley onto a separate track, but notice that there is one person tied to this other track.  What do you do?

It’s a dilemma that has reared it’s head recently due to developments in driverless technology, as researchers have pondered whether a car should be designed to protect it’s passengers even if that means harming innocent bystanders, or should it aim to preserve the safety of the most people it can?

What do the public think?

A recent MIT led study set out to explore just how the public regard such dilemmas, and the results are certainly interesting.  Whereas many in the trolley dilemma would struggle to divert the trolley and kill the one person, when it comes to driverless cars, people appeared to be much more utilitarian.

Interestingly however, despite support for this approach, people also revealed that were a car to be programmed that way, they would be less likely to use it.  It reflects a kind of selfishness that wants every car except the one we’re riding in to be as safe as possible.

“Most people want to live in in a world where cars will minimize casualties,” the authors say. “But everybody want their own car to protect them at all costs.”

A social dilemma

If such a situation were to unfold in reality, it would lead to unsafer roads for everyone on account of the selfishness of each of us as individuals.

“For the time being, there seems to be no easy way to design algorithms that would reconcile moral values and personal self-interest,” the authors write.

Even more sadly, the survey also revealed that people were largely opposed to a government regulating driverless cars to behave in the kind of utilitarian ways they espouse.  Were such regulations enforced, the respondents said they would be 1/3 as likely to buy such a vehicle.

It’s a point of view the authors believe car makers and regulators need to be aware of, especially as the safety record of early driverless vehicles will probably play a huge role in public perceptions of the technology.

If you’d like to participate in this study yourself, you can do so via the website below.

http://moralmachine.mit.edu/

 

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