The National Transportation Safety Board is looking into a hidden danger on the highways: A nationwide shortage of parking spaces for large trucks.
The shortage results in many drivers stopping on the sides of ramps — sometimes with fatal consequences.
Mario Gonzalez died in July on his way home from visiting his family when his pickup slammed into the back of a semi-truck parked on the side of a rest stop service road off Interstate 37 south of San Antonio. Gonzalez was speeding before he hit the brakes seconds before the impact. It was dark and the big rig did not have lights on.