The proposed park takes the idea of greening obsolete infrastructure to a new extreme

The overwhelming success of the Highline has proved that in New York City, at least, old infrastructure can be made new, especially through the now-popular concept of the linear park. But what about letting foliage grow on the actual street grid? Perkins Eastman Architects decided to imagine a world where this was feasible. The 40-block park called the Green Line would run from Columbus Circle to Union Square — almost three miles. In the process, the ambitious renderings transform how we think about green transportation and infrastructure in a major thoroughfare.

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