A multi-vehicle crash slowed Interstate 95 near the Philadelphia International Airport to a near standstill during the Monday morning rush.
The wreck, which involved at least four vehicles, happened on the left-hand side of the southbound lanes south of the airport exit around 6:30 a.m., Pennsylvania State Police said.
Drivers quickly backed up behind the scene as it took about an hour to get past the scene as traffic slowed to around 3 mph around 7:15 a.m., Waze said.
No major injuries were reported, troopers said.
The crash began to clear around 7:30 a.m., troopers said.
By 8 a.m., the delay was down to 30 minutes, Waze said.
A residual slowdown continued through the rest of the morning rush.