Yes, things like street closures for construction, film shoots, or Neighborhood Night Outs would all need permits to obstruct traffic/close the street.
Fun fact: as a regular citizen you can apply for such a permit online. I did this when we were moving houses to ensure the entire block in front of our house would be clear of cars (or we could tow if required) to make it possible to get a moving truck in on the one-lane street where double-parking would block all access. I filled out the forms. A week or so later the city dropped signs on the sidewalk warning of the upcoming closure.
You can also close your entire street for a block party. You just need a certain number of people on your block to sign the form approving it.
I started building basically April last week. I have a "safety" toggle in my app. If it's on, there's a "Review Actions" tab that any write or destructive actions go to. Then when I'm done dictating/commuting/whatever, I open the Review tab and go through the actions (add this calendar event, send this text message, reply to this email, etc) one by one - it sort of works like a checklist.
Feel free to take the idea, if it's helpful. No credit/rights necessary. Y'all are much farther along than I am and if you come out with an Android app I'll probably end up a customer!