flail space model
... that the flail space model models how a passenger will move in a collision with a roadside feature like a guardrail, since crash test dummies are not accurate in such cases?
... that the <b id="mwCIA"><a href="./Flail_space_model" id="mwCIE" rel="mw:WikiLink" title="Flail space model">flail space model</a></b> models how a passenger will move in a collision with a roadside feature like a <a href="./Traffic_barrier" id="mwCII" rel="mw:WikiLink" title="Traffic barrier">guardrail</a>, since <a href="./Crash_test_dummy" id="mwCIM" rel="mw:WikiLink" title="Crash test dummy">crash test dummies</a> are not accurate in such cases?