This sounds really greatYeh thats where the council come handy. Ill make them have sandbags and road closure signs and the police boat comes in to help evacuate and firefighters use ladders to ge the people. And crashes i thot of a lorry trailer detaching and hitting a car and the road gts shut for 6 hours if there is a fetality and stuff. But the firefighters have 1 hour aka golden hour and the air ambulance comes of its serious. But the road gets closed for 6 hours and you mark the road out put sand down remove bodies and clear road and put a police incident here sign for 2 days for witnesses etc.
Big motoway pile-up is a great idea