I would love to see new neighborhoods being built have their plumbing not right under the road. It just seems so stupid to do that since it basically increases the costs. Instead it'd probably be better to put it under the sidewalk and have loops embedded in the sidewalks so that when work needs to be done you can tie it up to a fork truck and lift the sidewalk tiles up to perform your work. It's easily accessible, no digging, no excessive repair costs afterwards, and should make the actual work cheaper since repairs can be made faster.