How did a drag racing location get to be known as a "Drag Strip"

CJ Hart did a lot to organize street racers into racing on an old airstrip in Santa Ana in 1950, and called it a Drag Strip.

https://www.hotrod.com/articles/carl-swift-irwindale-raceways-mr-unbeatable-1960s/#016-swift-profile-robison-1956-cadillac-jpg