The school bus' stop sign was extended and had red lights flashing. With the proximity to the intersection, it's most appropriately treated as an all-way stop.
Regardless of whether the bus' stop sign applies to cross streets, at some point in the turn the car is now in parallel with the bus, and the sign would apply at that point.
Also, you're blind to anyone who may be approaching the bus from the opposite side of the intersection.
The school bus' stop sign was extended and had red lights flashing. With the proximity to the intersection, it's most appropriately treated as an all-way stop.
Regardless of whether the bus' stop sign applies to cross streets, at some point in the turn the car is now in parallel with the bus, and the sign would apply at that point.
Also, you're blind to anyone who may be approaching the bus from the opposite side of the intersection.