Much more development further east was envisioned during the oil boom of the 1970s, including a huge planned community called, in successive iterations "New Orleans East", "Pontchartrain", "Orlandia", and, finally, "New Orleans East" once more. This "new-town-in-town" was to have resembled Reston, Virginia or the Woodlands north of Houston, but only a few small portions were built in several bursts of activity in the twenty years prior to the Oil Bust. Both the Village de L'Est and Oak Island neighborhoods were phases of "New Orleans East". The new town development would have occupied almost all of New Orleans lying east of the present-day route of I-510. Three identical interchanges along I-10 east of Paris Road were constructed in anticipation of the new town. The Michoud Boulevard exit uses one of these interchanges, but two of the three were never used. The prominent "New Orleans East" cast-concrete sign just west of the Michoud Boulevard exit was fabricated "circa" 1980 during the final attempt at developing this huge tract. Much of this land later became the Bayou Sauvage National Wildlife Refuge, the largest urban wildlife refuge in the United States. Though the "New Orleans East" new town development was never realized, by the 1970s its name had been adopted by many New Orleanians to refer to all of New Orleans east of the Industrial Canal.