Original plans for the Green Line called for a direct rail connection to LAX. But in the early 1980s, people mover technology was not widely available — at least outside of Disneyland — and officials could not decide how to build the station inside the horseshoe terminal area. The extension was ultimately killed when the price tag on the 20-mile Norwalk-to-Redondo Beach line tripled.
Source: Los Angeles Times April 11, 2018 19:48 UTC