Over time, police cars and other emergency vehicles began to use flashing emergency lights. They also began to add another color: blue. In many areas, flashing red and blue lights are the standard emergency lights on many vehicles, although certain jurisdictions still choose to use other combinations or particular colors for certain types of emergency vehicles.
Since the use of emergency lights can vary greatly from state to state, it's difficult to tell exactly why certain color combinations are chosen. However, there are a few theories about why red and blue lights seem to be the most popular. For example, while the color red is associated with stop and warning, red emergency lights can get lost in heavy traffic because of the fact that most tail lights are also red.
In these situations, blue lights really stand out and help to alert other drivers. Others point to studies that indicate that red lights may be more visible during the day, while blue lights may be more visible at night.
Using a combination of flashing red and blue lights thus helps to alert drivers regardless of the time of day. Finally, some experts believe using both red and blue lights alleviates problems associated with drivers who are colorblind. People who have trouble seeing red often have no trouble seeing blue. Likewise, drivers who can't see blue can nonetheless see red. What purposes do emergency lights serve? Wonder What's Next? Try It Out If you enjoyed learning more about emergency lights in today's Wonder of the Day, we hope you'll pull over to check out the following activities with a friend or family member: Up for an adventure?
Ask an adult friend or family member to take you on a field trip to a local police or fire station. Talk with a real police officer or firefighter about the emergency vehicles they use. If possible, see if they'll give you a demonstration of the emergency lights and sirens on one of their vehicles.
What has their personal experience been with using their emergency lights? Which ones seem most effective? Check out the Emergency Vehicle Photo Gallery online to see pictures of various emergency vehicles used in Europe. How do these vehicles differ from those where you live? What do you notice about the colors used? How effective do you think the color schemes used are?
Up for a challenge? Design your own emergency vehicle! In the future, you're tasked with designing a vehicle that can be used by police officers, firefighters, and emergency medical technicians. That's right! You must design a single vehicle that can act as a police car, fire truck, and ambulance. Don't forget to design a system of lights that will serve the purpose of alerting others to your presence on the streets! Have fun and be as creative as you can be.
Share your work with a friend or family member. What do they think of your design? Did you get it? Test your knowledge. Wonder Words scene alert obey vary stop truck visible detour accident convey visually purpose jurisdiction violation precaution maneuver urgency destination Take the Wonder Word Challenge.
Join the Discussion. Fabian Dec 3, Dec 27, Hi, Fabian. Gonte Feb 26, Flashing blue: Give way, they want to pass. Flashing red and blue: Pull over, they want the car in front of them to stop. Feb 27, That is very interesting! Thanks so much for this information, Gonte! Dec 5, Hannah Nov 20, Nov 26, Austin Jun 5, Austin Jun 6, Jun 5, Jun 7, Hi Austin! Glad you enjoyed this one! Thanks, Austin! Ariana Dec 14, I already know all that! Cat Feb 13, Dec 15, Vincent Nov 16, I know that police have red and blue lights, fire has red,blue,orange,and white,emts have red,white,and blue.
Nov 16, Thank you for sharing information with us, Vincent! Jonah May 24, May 27, Thanks for your comment, Jonah! Rhys May 18, Im pretty sure some emergency vehicles are unmarked so you cant tell what they are. May 20, Jon Mar 16, This is very cool but why does every emergency vehicle have their own unique siren.
Nov 5, Thanks for sharing additional information, liam! That's really interesting! Mar 17, Mar 10, Mar 11, We're glad you liked this Wonder topic! The newer lights on emergency vehicles are strobes meaning that they are a lot brighter and easier to see. It's hard to miss the new lights. They are after as well as also more fascinating. Have a good day. John Jan 31, Feb 2, We're glad you liked this Wonder! Thanks for visiting! Taishaun Dec 17, Thank you for posting that plus that was awesome.
Dec 17, That's always the goal! Dec 11, Pumpkin King Nov 30, Dec 2, The best part about these lights is that they can be purchased online without any hassle.
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