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By Nita Lelyveld

The STEM Academy of Hollywood is perched above eight lanes of traffic on the 101 Freeway. Its classroom windows offer the high school engineers a bird’s-eye view of some of Los Angeles’ most enduring woes.

Too many cars. Too much cement. A freeway system that slices through neighborhoods, leaving them uninviting to crisscross on foot.

It’s an ideal vantage point from which to dream about how to right some of those wrongs.

This year, some juniors at the L.A. Unified campus spent time brainstorming how best to design a park built right on top of the freeway.

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