UN’s disaster prevention website
Prevention Web is a UN website. It is packed with info for preparedness matters.
I’ve got the above link to open (I hope !) on the “US Communities With Limited Evacuation Routes”. It was a site hyperlink. Do note that these charts are for planning, prevention and preparedness. It is obligatory to confirm specifics for what you’re working on.
At top horizontal bar are the functional and geographic sections to click on.
One good aspect of site is that they welcome organizational feedback for their chart/report updates.