Why Japan's 'Blue' Traffic Light is Actually Green (& Other Confusing Road Rules)

Traveling in Japan is an adventure full of unique customs, and even the simple act of crossing the street can reveal fascinating cultural differences. For foreign tourists in Japan, understanding Japanese traffic lights and road signs is key to exploring safely and confidently. Let’s dive into the quirks of Japan pedestrian signals and why they’re one of the most confusing things in Japan for first-time visitors.

The “Blue” Light That’s Actually Green

One of the most surprising aspects of Japanese traffic lights is the so-called “blue” light. In most countries, the “go” signal is green, but in Japan, it’s called “ao shingō” (青信号), meaning “blue signal.” Yet, when you look at the light, it appears green—or at least a bluish-green!

Why Is It Called “Blue”?

This confusion dates back to the Japanese language and history. Traditionally, the word “ao” (青) was used for both blue and green shades. When traffic lights were first introduced in Japan, people naturally called the green light “ao.” Even after the modern word for green (“midori”) became common, the habit stuck.

In the 1970s, the government tried to standardize the color, instructing that the “go” light should be the bluest shade of green possible. Today, you’ll see Japanese traffic lights ranging from standard green to a distinct blue-green, a unique feature that continues to surprise foreign tourists in Japan.

Push-Button Crosswalks: Don’t Just Wait—Push!

Another feature that confuses many visitors is the push-button crosswalk. At quieter intersections, the pedestrian signal won’t change automatically. Instead, you need to press a button to activate the Japan pedestrian signal. Many foreign tourists in Japan have found themselves waiting endlessly, not realizing they need to take action!

These push-button signals are designed to save energy and reduce unnecessary stops for cars. Look for a button near the crosswalk—sometimes with English instructions—and give it a press to safely cross the street.

Unique Road Signs and Rules

Japanese road signs can also be a source of confusion. For example:

• The red triangular “止まれ” (tomare) sign means “Stop,” but unlike the octagonal STOP sign used internationally, it’s a triangle.

• In Japan, you cannot turn on red unless there’s a specific green arrow signal. This is stricter than in many Western countries, so always wait for the correct signal.

These differences are important Japan travel tips for anyone exploring by foot or car.

Tips for Tourists: Navigating Japanese Traffic Lights

• Always wait for the correct Japan pedestrian signal, even if the road seems clear.

• Look for English instructions at major intersections, but don’t be afraid to ask locals for help.

• At push-button crosswalks, press the button and wait for the signal to change.

• Remember, “blue” means go—even if it looks green!

• Pay attention to unique Japanese road signs and follow local rules to stay safe.

Conclusion: Enjoy Japan’s Unique Signals

Japanese traffic lights are more than just signals—they’re a window into the country’s history and culture. By understanding these unique features, foreign tourists in Japan can navigate the streets safely and appreciate another layer of this fascinating country. So next time you’re waiting at a crosswalk, take a closer look at the signals and enjoy your Japan adventure!