TCO stops traffic by Joe Flood licensed under Creative Commons.

Do you know what makes a street a street, a boulevard a boulevard, or an avenue an avenue? Turns out, there's a hidden code behind how roads are classified and named.

Boulevards are often wide streets with medians and trees and buildings on both sides, while lanes are almost the opposite—narrow and often located in rural areas. But don't get that confused with a drive or a terrace.

This Vox video lays it all out:

Tagged: road signs, roads

Julie Strupp is Greater Greater Washington's Managing Editor. She's written for DCist, Washingtonian, the Wisconsin Center for Investigative Journalism, and others. You can usually find her sparring with her judo club, pedaling around the city, or hanging out on her Columbia Heights stoop.