"Before, it was two-tenths with one yellow flag and half a second with two yellow flags. "What you have to do with double yellow is significantly reduce your speed," he said. The double yellow needs to be very different to a single yellow. Many drivers and seasoned paddock observers believe that waved yellow flags in qualifying should be extended to the full circuit to end a driver's qualifying lap. "A double yellow is something significant.

Source: Bangkok Post July 24, 2016 18:45 UTC