The bottom does not adress the top question.

You can’t really have a firetruck train unless you build every single building within spitting distance of the train station and you can strap the firefighting equipment to a bike.

There are reasonable solutions to this question but this meme does not provide any of them.

This feels more like a parody of a fuckcars poster.

“Only allow” implies that either way emergency vehicles are allowed. In no reading of the meme were emergency vehicles ever banned.