The act of estimating {HEAD ~ the cognitive load} 12 on {TAIL ~ the driver} also preferably includes normalizing the collected factors, weighting the normalized factors, and summing the weighted factors 
The act of estimating { HEAD ~ the cognitive load } 12 on { TAIL ~ the driver } also preferably includes normalizing the collected factors , weighting the normalized factors , and summing the weighted factors
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH