Packages in the distribution environment experience sudden side impacts caused by unpredictable motion while in transit. To test this kind of effects, an incline impact tester is used as part of the transport simulation laboratory facilities.
The machine consists of a wheeled carriage, guided by rails, upon which the test sample is placed. The inclination of the rails is configurable (usually set to 10º). At the low end, there is an impact backstop which provides a rigid surface against the sample impacts.
See a video of the Inclined Impact Tester.