I recently moved from Iowa to California. I had really never experienced road rage until driving in California. It is perplexing to me since I have found people I meet, such as a clerk or fellow customer in line, are more talkative than anyone was in Iowa. They seem compelled to discuss their day, the weather, or random thoughts with a stranger. So who are these people on the road? If I am traveling slightly over the speed limit, it is as if I am deliberately attempting to delay the driver behind me. Based on my observations from Iowa to California, I would say it has to do with the sheer amount of traffic and driving time. In Iowa, the traffic delay would be a tractor, and no one wants to take on a farmer.