this is a good thing
streets are for people
It's not a street. It is a high-speed expressway in an open-top tunnel with bridges across it. It was excavated and built at great taxpayer expense and years of commuter inconvenience to move traffic rapidly across a dense urban area. There are plenty of ordinary streets up above on ground level.
Would you let your teen ride a bike on a high-speed eight-lane highway with cars and trucks exceeding 50 mph?