A former assistant basketball coach at Pomona High School Clarence Nelson and his wife Lisa were among the three victims killed in a deadly Ontario crash at 10 Freeway on Tuesday, October 21.  . . drove the truck into slow-moving traffic on the I-10 Freeway in San Bernardino County. Dashcam footage released by ABC7 shows Singh slamming into an SUV, without any attempt to apply brakes. Ontario Crash: Pomona High School Assistant Basketball Coach Clarence Nelson & His Wife Killed In Fatal Accident

Because the bottom of a truck is higher than the bumper of passenger vehicles, when there is a collision the smaller vehicle easily slides under the truck and the first point of impact is the windshield. Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes —front, side, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.

Clarence & Lisa Nelson, Precious Ones Gone Too Soon

Major truck manufacturers have Front Underride Protection designs which can work on American trucks.

AMERICA’S DANGEROUS TRUCKS (PBS/Frontline Underride Documentary)

See Underride Crash Memorials posted here and at #STOPunderrides Tweets. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)

Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what could potentially be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.