On February 4th 2023, there was a near miss at the airport in Austin TX, where a 767 performing an auto land in foggy conditions nearly collided with a 737 that was taking off on the same runway. The Tower Controller mistakenly cleared the 737 for takeoff with only a 3 mile final for the 767 and resulted in a near miss. The 767 initiated a go-around after noticing the error and barely avoided disaster.
My question is if the TCAS of the 767 would have issued an alert with the 737 on the ground? Does TCAS only work for aircraft in the air or can it also issue alerts for runway incursions such as this one?