I really like the clear vehicle option for traffic within the dev menu. Definitely helps with a lot of the traffic back up issues. With that being said, I feel this should also include the ai backup aswell. The ambulances, aswell as law enforcement. Reason being responding still has a long way to go before things run smoothly. It's getting there, but its still got a ways, and with that, you have Ai getting stuck in walls, cars getting flipped, ambulances get stuck, etc. So scenes clearing up arent the smoothest, leading to their vehicles blocking traffic, ai peds being stuck in one spot, down peds being left etc. This would be a temporary fix, until it's all smoothed over.