Hello everyone, I am not a native English speaker, I am not sure what “utility” means in this context, can you tell me?

This is an ability the cleric has in the modern magic of 5th edition:

Starting at 2nd level, you can use your channel divinity to call the city for aid. As an action, you present your holy symbol, and any city utility within 30 feet of you either works perfectly or shuts down entirely for 1 minute (your choice)

What is a city utility? Cars, trains, metro, are those utilities?