In my city (200k pop) a lot of traffic lights are turned off, or rather blinking orange during the night. The few exceptions keep operating normal for good reas

In my city (200k pop) a lot of traffic lights are turned off, or rather blinking orange during the night. The few exceptions keep operating normal for good reasons. We don't have a smart traffic control system in our city so I assume it's the bare minimum and if the light you talk about was red at 3am, then there's a good reason for it.