Thank you, Turtle for your thoughtful reply and well-articulated points. You answer well the question, why should drivers of big trucks log? But are you also suggesting that van drivers do not push safety limits and drive tired? You stated well the sins of big-rig drivers, but what of those vanners?
No, I'm not suggesting at all that van drivers do not push safety limits. They absolutely do, at least some of them. Many have boasted about it here in these forums. Some are quite reckless, in fact, same as the other 4-wheelers, because that's what they are, both literally and of that mindset. But they are still not any more dangerous to the general public than is any other car or light truck. An individual might be, same as any car or light truck, but as a class of vehicle, they are not. That's why trucks have to log whether they're hauling freight or not, because the vehicle itself is inherently more dangerous, empty or loaded, and the last thing you want behind the wheel of an inherently dangerous vehicle is a fatigued driver.
Cheri touched on it, it's the difference in damage, injury and death that a heavy vehicle can cause versus that of a van. And there are other factors. When a cargo van gets into an accident, injuries are the same as any other car or light truck in an identical accident. Most don't have fatalities, but the bad ones do, and in the bad ones the driver of the cargo van is also killed. In a big truck, fatalities occur much more often, not because of the driver, but because of the weight of the vehicle. And many times everything the truck hits results in the occupants getting killed, except the truck driver, who walks away, and that ****es people off. If most cargo van accidents resulted in lots of fatalities, but the driver is relatively uninjured and walked away, that would **** people off too, and we'd see a much greater likelihood of cargo vans being regulated.
But until that happens, cargo vans really and truly are no more dangerous to the general public than the general public itself, which as dabluzman1 correctly points out, is far more dangerous than are heavy trucks and buses.
I know that many tractor and straight truck drivers think that if they have to log, vans should, too, because the vans are hauling freight. But that's not the reason, and it's not only an obvious reason, it's plainly and explicitly stated in the FMCSA regulations, and in CSA 2010's stated purpose. Heavy trucks and buses, and
all vehicles placarded for HAZMAT.