traffic jam(Hundreds if not thousands of motorists were caught in a nighttime traffic jam on the Moscow Ring Road, where traffic was at a standstill over dozens of kilometers for several hours. TMT Alexander Demidov)
gridlock alert(Может употребляться в переносном значении: It seems as if a gridlock alert has been signaled in your life. Forget about accomplishing anything; you'll hit delays and detours in everything you try to do. VLZ_58)