The energy that produces ocean waves comes from

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.