Braking point, of a sort (7,3)

I believe the answer is:
traffic jam
(Other definitions for traffic jam that I've seen before include "Problem, in a way" , "stuck in this" , "Gridlock" , "It causes a hold-up" , "Vehicular snarl-up" .)
I believe the answer is:
traffic jam
(Other definitions for traffic jam that I've seen before include "Problem, in a way" , "stuck in this" , "Gridlock" , "It causes a hold-up" , "Vehicular snarl-up" .)