I-478 is currently the Brooklyn–Battery Tunnel and approaches, connecting I-278 in Brooklyn with the Battery in Manhattan; it was once planned to continue north along the unbuilt Westway to I-78 at the Holland Tunnel.
John Walter Baxter (1917-2003), British civil and structural engineer, designed the Westway
The only parts of Ringway 1 that were constructed were part of the West Cross Route between North Kensington and Shepherds Bush which was opened by Michael Heseltine in 1970, simultaneously with Westway, to loud protests; some residents hung a huge banners with 'Get us out of this Hell- Rehouse Us Now' outside their windows and protesters disrupted the opening procession by driving a lorry the wrong way along the new road.
The Westway, part of the A40, is a major road in west London which is elevated on concrete structures over the surrounding streets.