[Fat Charlie]

Safer and faster than squeezing your hand in a vise, perhaps. But preferable?

I absolutely hate airlock type traffic lights- where they're placed in pairs and the first light can do anything it wants, but you can't do anything until the farther light allows the gap between them to empty. Given traffic lag, you could sit through an entire green and be looking at another red before there's even room on the other side of your intersection to allow you to cross.

What's worse than airlock lights? Combined ramps, where accelerating traffic moving to the left gets to mix with decelerating traffic moving to the right. As an added bonus, this interchange also mixes in crossing traffic that doesn't want to get on the main highway at all.

A regular Diamond interchange has two lights on the secondary road, and traffic in both directions on the secondary road can be completely unimpeded by reds. The Diverging Diamond can't ever allow traffic in both directions at the same time on the secondary road.

We've already got one bridge here. A cloverleaf has a bridge and zero stoplights. None.