Just to be clear, I do not condone driving that risks injury to anyone or damage to property.

Traffic is like water. If the channels designed to hold it are untenable, then the water finds other routes. People understandably do lose patience sitting in stationary traffic. If they are late for an important appointment, or risk financial penalty for being late for a job, then it is not surprising that some may run through a 'No Entry' sign when they know it will save them 10 vital minutes.