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Who to crush an unmanned vehicle: the results of the Moral Machine experiment

Two years ago, MIT launched the Moral Machine platform. Anyone could take a test of the simulated 13 situations: specify how to behave an unmanned vehicle and whom it is preferable to sacrifice when losses are inevitable. In two years, more than 2 million people from around the world took part in the study. They provided 40 million solutions for simulated situations.

Yesterday, MIT published the results of this experiment.


Sample job from the test. The brakes of an unmanned vehicle failed. Which is more preferable: to keep the course (then three elderly people will die crossing the road on a red light) - or turn and crash into a fence (two adults and a child who are in the car will die)?
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The essence of the study

Moral Machine offers a number of situations with imminent accidents. Depending on the behavior of the unmanned vehicle, the outcome will be different. The user must select the most preferred scenario.

The study should have answered 9 main questions about which is preferable:

1. save the life of a person or animal;
2. save the course or minimize;
3. save the lives of passengers or pedestrians;
4. the largest number of people or the smallest;
5. men or women;
6. young or old;
7. fat or thin;
8. pedestrians crossing the road in accordance with the traffic rules, or pedestrians-offenders;
9. people with high or low social status.

Some scenarios had additional factors: for example, criminals, pregnant women and doctors participated. These characteristics were needed mainly so that the situations did not look similar to the subjects.

After solving 13 situations, participants could take a survey and indicate demographic data: gender, age, income, education, religious and political views. For each participant his geolocation was recorded.


Geography of respondents. Each point on the map indicates that at least one user of the region has passed at least one test task.

The results of the study should help develop a universal ethics of unmanned vehicles and understand whether it should differ depending on the specific geographic region.

Global preferences

The most common preferences, which are fairly predictable, are the salvation of people, not animals, the salvation of the greatest number of lives and the salvation of young lives. These three postulates can become the foundation for the ethics of unmanned vehicles.


In each row, ΔP is the difference between the preferred saving of lives from the right column as compared to the lives in the left column. For example, for the Age parameter, the preferred saving of young lives is 0.49 more than saving the lives of the elderly.

Individual differences

A demographic survey after the main test passed 492 921 users. Their data helped to understand individual decision making factors.

It turned out that gender and religiosity of respondents had the greatest influence on the decision. For example, male respondents are 0.06% less likely to decide to keep women alive, while the most religious respondents are 0.09% more likely to save people than animals. But none of the six demographic factors have a very strong influence on the choice: for example, both men and women prefer to save women's lives - just women make this choice more often.

Cultural differences

The subjects were divided into three cultural clusters:

- western
It includes residents of North America and many European countries. By religion - Protestants, Catholics and Orthodox.

- east
Eastern countries such as Japan, Taiwan (Confucianism)
Indonesia, Pakistan, Saudi Arabia (Islam)

- south
Latin American countries and countries under French influence



It turned out that:


The full report can be read here or here (sci-hub) .

Source: https://habr.com/ru/post/427747/


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