The component or {HEAD ~ system} is arranged to initiate an action or change {TAIL ~ its operation} if a collision is predicted 
The component or { HEAD ~ system } is arranged to initiate an action or change { TAIL ~ its operation } if a collision is predicted
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH