It was the 86th edition of the Los Angeles Open , and was part of the Emirates Airline US Open Series of the 2012 ATP World Tour Traveling .

The 2012 tournament Competition marked Recording the last time an ATP World Tour tournament Competition would be held Creating in Los Angeles .

Both crashes would have been prevented Preventing_or_letting by an operational automatic train protection ( ATP ) system , wider fitting of which had been rejected on cost grounds .

It was the third Grand Slam tennis event Competition of the year and was part of the ATP World Tour , the WTA Tour , the ITF Junior Tour and the NEC Tour .