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What's the Secret Behind the Numbers on the Interstate Signs?
auto.howstuffworks.com/numbers-on-interstate-signs.htm
Why is one road named I-5 while another is I-480? We take a closer look at the digits on those red, white and blue shield-shaped signs.
The Longest Road in the U.S. Passes Through a National Park
history.howstuffworks.com/american-history/longest-road-in-the-us.htm
Few things capture the spirit of adventure quite like the vast network of highways stretching across the United States. But have you ever wondered which road takes the crown as the longest?
Can You Guess the State If We Give You a Major Highway and the Capital?
play.howstuffworks.com/quiz/can-you-guess-the-state-if-we-give-you-a-major-highway-and-the-capital
The USA is defined by its geography, which dictates much of its industries and lifestyles. These factors combine to give each state its history and identity. If we gave you the name of a road that leads to it and its capital, can you name the state? Let's find out.
Is there any rhyme or reason to how U.S. interstate highways are numbered?
science.howstuffworks.com/engineering/civil/question656.htm
Is there any rhyme or reason to how U.S. interstate highways are numbered?
Who Does — and Doesn't — Get Featured on Blue Highway Exit Signs?
auto.howstuffworks.com/tech-transport/who-featured-blue-highway-exit-signs.htm
Not every business can get one of the coveted six spots on your typical 'gas, food lodging' highway sign. Competition can be stiff, so here's how it works.
How will towing affect my gas mileage?
auto.howstuffworks.com/auto-parts/towing/towing-capacity/information/towing-gas-mileage.htm
Towing and gas mileage don't make a good match and will affect your wallet. Learn how towing and gas mileage will affect your next cross-country trip.
How the Autobahn Works
auto.howstuffworks.com/autobahn.htm
The autobahn has a reputation for high-speed freedom, but it's not as wild as you may think. Read about the autobahn at HowStuffWorks.
How Overweight Loads Work
auto.howstuffworks.com/auto-parts/towing/towing-capacity/information/overweight-load.htm
An overweight load can be a dangerous thing to tow. Learn what constitutes an overweight load at HowStuffWorks.
Freeway vs. Highway: Can You Tell the Difference?
auto.howstuffworks.com/tech-transport/freeway-vs-highway.htm
Highways and freeways can both be designed with multiple lanes, entrance and exit ramps and limited traffic control to reduce congestion and improve driver safety. However, some small highway vs. freeway distinctions place them in separate categories.
Name These American Car Logos From One Image in 7 Minutes
play.howstuffworks.com/quiz/name-these-american-car-logos-from-one-image-in-7-minutes
Learn just how serious American car brands are about the cutthroat business of automaking. We've got enough buyout and bankruptcy intel on this auto challenge to make your head spin. All you've got to do is identify companies by their logos, and we'll pop the hood and dish the dirt!