How do roads get built?
Road Layer Cake
How do roads get built?
You know that smooth black road outside your window? The one that wasn't there in old photos of your neighborhood? Someone built it — and building a road is way more interesting than just pouring some tar and calling it a day.
First, engineers walk the land with lasers and computers, figuring out where the road should go. They're looking for the flattest, straightest path that dodges big problems — swamps that would swallow the pavement, hills that would need blasting, someone's house. Sometimes the perfect route on paper cuts through a protected forest or a historic site, so they adjust. It's like drawing a line on a map, except the map fights back.
