Wat

Maybe there wasn't enough space to lower the highway in that straight distance.

The camera doesn't show the elevation difference very well...

Someone on city council has a brother-in-law in the concrete business.

On the left side they need sufficient headroom under the bridge for whatever they are going to build in the future (maybe another train track). As a result the street would have been too steep and they required that loop. This solution is absolutely not stupid.

I'll drift that, easy.

There's the elevation difference (as other people have already mentioned) and sometimes they intentionally put curves/turns into roads as a way of slowing traffic down.

It's probably to make people alert so the won't rush on to the other road.

They made it that way so it would be more difficult to run from the police on a hi speed in a stolo with a dope hoe.

It's a Hot Wheels set up.