Not to highjack the thread, but the same can be said for California Highway Engineers, although I have seen similar problems in Maryland, Virginia, New York, Wisconsin, Michigan, Detroit and several other states.
Offramps are often too short to delay braking until after exiting the highway. This is because invariably the offramp has a steep downgrade immediately which only tend to add to the exit speed. Rough on brakes. More modern interchanges have solved the problem by longer exit ramps, but most have not.
As for merging, I note the California "Suicide Exit," a combination exit/entrance merge area about 300 feet too short. This will reduce the bravest driver into a cold sweat, even assuming total concentration and competent driving skills (there's no control over what the other drivers might do, or fail to do.) .
Holy crap, are you ever right! There are a lot of these X-exits around here. They are collisions waiting to happen. I hate them. Especially when your "opponent" in these death matches is a semi...