Yeah, just like on a network, a delay is multiplied for each vehicle in front of you.
One time I got stuck on the freeway between London and Toronto, for hours in the winter time. Traffic was backed up for several miles. The weather was getting bad, so it was royally pissing me off. They were blocking all the off ramps with snow plows and stuff so traffic couldn't spill off and bring those areas to a halt. When I finally got to the origin of the delay, there was a crane lifting still dripping, sardine can wreckage. Suddenly my rage at the traffic jam seemed trivial
