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Question 4439

Regarding road safety, on an urban road, why is it important not to drive faster than 50 kilometers per hour?

  1. Because the lower the speed, the lower the fuel consumption.
  2. Because above 50 km/h, the probability of a pedestrian collision being fatal is more than double that at 40 km/h.
  3. Because besides traffic flowing more smoothly, there is no risk of accidents.
Show answer and explanation

Correct answer: Because above 50 km/h, the probability of a pedestrian collision being fatal is more than double that at 40 km/h.

There are many pedestrians in cities, and the chance of a pedestrian being killed when hit rises very quickly with speed. At 50 km/h, the risk of killing a pedestrian is more than twice as high as at 40 and about five times as high as at 30. That's why the speed limit on streets does not exceed 50 km/h, as shown on the sign in the image.

Manual II. Cuestiones de Seguridad Vial (DGT, 2026) · Manual II. Cuestiones de Seguridad Vial (DGT, 2026)