The Queens Boulevard overpass spanning the Jackie Robinson Parkway was one of the few such places, as of 2001 anyway, where cyclone fencing was never put up to prevent lunatics from lobbing things, or themselves, down on motorists.
Traffic was pretty light on the brisk, February 24, 2001, early afternoon when this was taken. The inner 4 lanes are the Jackie Robinson Parkway and the outer are Union Turnpike, as are the upper lanes lining the retaining wall. The upper lanes of Union Turnpike pretty much serve as service ramps to and from Queens Boulevard. Poor Union Turnpike just doesn't know at this point if it's coming or going.

The hill in view ahead is not entirely natural. Both the Jackie_Robinson_Parkway and Union Turnpike are being vaulted, first over Austin Street, and shortly afterwards over the Long Island Railroad main trunk line.
What poor Union Turnpike did to earn the ignominy of being tethered to the former Interboro Parkway is beyond me. You'd think they would have foisted such an insult on a lesser road, like nearby Lefferts Boulevard, which is narrow enough that it probably should have been an avenue instead. Then again, in the mid 1930s, in the midst of the Great Depression, being glued to the then state-of-the-art Interboro Parkway was probably considered a great honor.
As for great honor, if the big shots of New York City and State really wanted to honor the late, great Jackie Robinson, couldn't they give him a better highway to do so with, like the Grand Central? I don't think the train station of the same name would mind.

A little closer view of the top of the Austin Street/Long Island Railroad hump, after which northbound Union Turnpike splits from the Jackie Robinson Parkway. Only a couple of blocks to the left is...of course I had to mention it - Nothing to do with Kew Gardens is complete without it...the forever cursed spot where at least 50, probably more, folks allowed a young lady by the name of Kitty Genovese to be savagely murdered by Winston Moseley in 1963.
Nobody called the cops, at least not effectively. They all listened to this woman scream her lungs out until this piece of walking defecation finally stabbed her out of her misery, and nobody so much as picked up a phone. Never mind running downstairs to help her; at least pick up the %$#@*! telephone! Other neighborhoods like Howard Beach and Bensonhurst were practically turned into verbs for describing the infamies that occurred on their streets, but Kew Gardens got off relatively lightly. Nobody ever refers to such cowardice and callousness as "Kew Gardening" someone, but maybe they should.
I'll say no more, in the interests of keeping this story as apolitical as possible, about these wonderful "witnesses".
As for Winston-doesn't-taste-so-good Moseley, this lowest of life is still trying to get paroled every couple of years. 2013 marks the 50th anniversary of his sickening contribution to world history, and he will again be going before the parole board. According to Wikipedia, as of 2008, he still showed no remorse whatsoever for Kitty's murder. He's still only in his mid 70s, still young enough to stab someone else to death if he ever walks free.