[shkkmo]

It is much easier to stage extra buses near areas that will need rapid evacuation then it is to scale up road infrastructure. There is a fixed limit on howany people can be moved by car out of major metropolitan areas, conversely, most major metropolitan areas are with 12 hours drive of other major metropolitan bus areas which means that well staged buses could easily arrive to rapidly scale evacuation speed. Finally, as car based evacuation reaches it's limit, the rate dramatically decreases, there is no such issue with buses.

[sandworm101]

It is more complicated than just moving people. Anyone traveling by bus isnt bringing stuff with them. They need shelter. The US evacuation model assumes most people will bring enough with them in thier cars to be self-sustaining for a period of days. The assumption is tgat 90+% of people wont need government help... due to thier independant mobility of people and stuff.

See the recent evac of fort mcmurray canada. That was all cars for hundreds of miles. No hope for busses there.

[shkkmo]

The "car" evacuation plan seemed to have verged on failure in Fort McMurray. People didn't have enough gas and the roads were clogged. The 25,000 people who fled north ran short of supplies quickly.

So the assumption that "90% of people won't need government help" clearly failed to hold true for this relatively small evacuation of 88k people.

[bluGill]

There are logistical issues to be improved on, but if (big if) we learn from experience we can solve them.

The fact remains, most people who are told to evacuate by car will pack their suitcases and enough spending cash so that they can live on their own once they get out. The majority will end up sleeping on the floor of friends/relatives, so once you get them out of danger you don't think about them again. All that is required is enough warning that they can pack (if you don't have this much warning nothing can work anyway), and enough fuel (accounting for gridlock!) along the way.

Government needs to deal with the small number of people who cannot care for themselves, but the vast majority of people can be self sufficient, and having their personal car makes them more self sufficient.

[shkkmo]

> Government needs to deal with the small number of people who cannot care for themselves, but the vast majority of people can be self sufficient, and having their personal car makes them more self sufficient.

More 25% is not a small number. A car only helps if people can actually get out. A mass evacuation by car of LA, San Francisco, Seattle or NY would fail utterly. Any place that already has significant traffic issues during rush hour (the sorts of places where buses are needed) would face massive drops in the evacuation rate due to gridlock and the areas that they would be evacuating through would rapidly run out of supplies (as happened with Fort McMurray with only 88k people being evacuated).