Pulling out into traffic almost goes wrong

This is dashcam footage of a daily commute. This is an intersection that is typical for traffic build up. Cars are always trying to exit the business from the left and are always counting on other drivers to allow them in. In this case, someone most likely waved them in. So watch as the black car slowly inches in and proceeds. Then suddenly, a red car is seen moving down the lane that the black car is about to cross over. The brakes are slammed and the black car stops within what looks like inches from the red car. Accident averted. This was a close call. I am not sure who would have been at fault here. You can almost say the red car had plenty of time to slow down. You can also say that the black car should have better observed oncoming traffic before proceeding.