The evasive manoeuvre test (Swedish: Undanmanöverprov; colloquial: moose test or elk test; Swedish: Älgtest, German: Elchtest) is performed to determine how well a certain vehicle evades a suddenly appearing obstacle. This test has been standardized in ISO 3888-2[1].

Forms of the test have been performed in Sweden since the 1970s.[2] The colloquial and internationally better-known name for the test was coined in 1997 by the German newspaper Süddeutsche Zeitung after the Swedish motor magazine Teknikens Värld flipped a Mercedes-Benz A-Class in a test ostensibly made to measure the car's ability to avoid hitting a moose.

In reality, the test is rather constructed to simulate, for example, a reversing car or a child rushing out onto the road.[3][4] This is because it is more likely that the moose will continue across the road than remain in place or turn back, making it more advisable to brake hard and try to slip behind the animal than to swerve in front of it.[5]

Test specifications [ edit ]

The test is performed on a dry road surface. Traffic cones are set up in an S shape to simulate the obstacle, road, and road edges. The car to be tested has one belted person in each available seat and weights in the trunk to achieve maximum load.

When the driver comes onto the track, they quickly swerve into the oncoming lane to avoid the object and then immediately swerves back to avoid oncoming traffic. The test is repeated with an increased speed until the car skids, knocks down cones, or spins around. This usually happens at speeds of about 70–80 km/h (45–50 mph)

1997 Mercedes A-Class test [ edit ]

On October 21, 1997, the journalist Robert Collin from the motor magazine Teknikens Värld overturned the new Mercedes-Benz A-Class in the moose test at 60 km/h, while a Trabant — a much older, and widely mocked car from the former East Germany — later managed it perfectly.[6] In July 2005, the Dacia Logan appeared initially to fail the test, but a later investigation concluded that excessive testing had worn the car's tires to failure.

On the occasion of being interviewed for an article in the Süddeutsche Zeitung, Collin tried to explain this test by the example of an evasive maneuver for a moose on the road. It was soon called Elchtest (moose test).[7]

Continued testing [ edit ]

Swedish automotive magazine Teknikens Värld tests "hundreds of cars every year"[2] with the moose test. It publishes test results since 1983 on their web site[8] and the Citroën Xantia Activa V6 has held the record since 1999, beating cars such as the track-oriented 2008 Porsche 911 GT3 RS and the 2017 Mclaren 675LT supercar.[9] The slowest car to successfully complete the maneuver is listed as the Reliant Rialto at 42.5 km/h, compared to the twice as fast Citroën Xantia at 85 km/h.

The moose-crash test around the world [ edit ]

The moose is common in Sweden, Norway, Finland, northern Russia, Canada, and Alaska, but does not appear in Denmark or Germany. Because of its heavy weight and tall legs, collisions with moose are particularly dangerous for the persons in a car.

Both Volvo and Saab have a tradition of taking moose crashes into account when building cars[citation needed].

The Swedish National Road and Transport Research Institute has developed a moose crash test dummy called "Mooses". The dummy (which is made with similar weight, centre of gravity and dimensions to a live moose) is used to recreate realistic moose collisions.

Australian car manufacturers use crash test kangaroo dummies for similar reasons.[10]

See also [ edit ]