I think the opposite on this conversation. No need to post a map, but it’s good talk. That’s a great idea for the area you live, no way can you hold the fort, you gotta bug out.
I concentrate on planning for the symptoms of the event instead of the event itself.
Civil unrest is the largest one to plan for that will have the greatest impact on your individual family. Pretty much all roads no matter the incident eventually lead to civil unrest. These will largely be confined to major metropolitan areas. The problem is they will disrupt major businesses and logistics. For example it doesn't matter if you have a large rural kroger. If the workers can't get to their HQ office in downtown Cincy the business will not be able to operate efficiently. His include logistics. If the toads are blocked then distribution centers will have trouble stocking stores. The first to show signs of w shortage will be oerishable goods, both through purchase and limited shelf life. As the major metropolitan areas begin to overwhelm law enforcement both honest people and the less desirable will start to expand out. First the suburbs, then rural areas right outside of town. The government will set up resources inside of these areas because that is where they can serve the most people the quickest. If you are rural they will except you to come to them. Which most will not because no way in hell they're going to deal with that.
The biggest for everyone to plan for is the lack of perishable food. Milk, bread, vegetables etc. Things like powdered milk and flour have indefinate shelf lives if vacuum sealed and stored in a cool place without sunlight. Canned vegetables have a "best by" date of usually a couple years. Getting meat should not be a problem for any of us here.
The longer it goes on the harder it will be for any person to purposefully survive. Not saying that people won't as obviously people will. But it will be situational and while being prepared can give you a leg up early on it eventually become luck of the draw. The long term outlook is slim unless you are currently or can get to a very remote area like very rural KY or WV. Long term survival requires a whole other level of preparedness that is still just a hope.