Register - Log In


FunTrivia Homepage



  • New Questions

  • Unanswered


  • Post a Question
  • Goto Qn #





    Archives

    In UK road tunnels why are the entrance lights orange/yellow and the exit lights are white?

    Question #58756. Asked by trevynik. (Aug 11 05 7:11 AM)


    satguru

    It's because of the relative darkness inside, combined with the human eye's reaction to changing light levels. Therefore if it's daytime, the orange lights are to get the eyes used to the darkness inside the tunnel, and the white light at the end to reduce the pupils gradually so you're not dazzled by the light when you leave it.

    Aug 11 05, 5:00 PM


    Find something useful here? Please help us spread the word about FunTrivia. Recommend this page below!


    Sign up to see all responses!

    Create a Free ID instantly to see all recent responses, post your own follow-ups or questions, and access over 1,000,000 trivia questions!

    Choose a User Name:
    Your Email Address:
    Choose a Password:

    I agree by the terms outlined in FunTrivia's Conditions of Use





    Other Similar Questions & Answers


    What is the cost of leaving those small standby lights on in a house? I realised I have 10 lights on, computer, TV and radios when I go to sleep at night. I now turn seven off at the power point when going to bed. Can anyone say how much a day it would cost to run just one of these lights?

    There is a button on the base of most city traffic lights for pedestrians to push. Do these buttons really make the lights change any faster?

    Last night, I noticed that one of my neighbors had decorated (badly) the exterior of his home with many, many Christmas lights. Being a law-abiding person, I can't get rid of the lights, but I would like to know just when this custom began. Any ideas?

    Suggested Related FunTrivia Quizzes - 90,000 currently online

    1 'No Exit'
    This fifth season episode of "The West Wing" aired on May 28, 2004.
    'West Wing' - Season 5 Average
    10 Q
    pennie1478
    Nov 10 06
    348 plays
    2 Not In The UK
    All of the US artists from the '50s and '60s in this quiz never had any hits on the UK chart. Can you guess the artist or the song. (US:Joel Whitburn Billboard book of Top Pop Singles 1955-2002. UK:The Guinness book of British Hit Singles & Albums).
    USA Music Average
    10 Q
    shipyardbernie
    May 27 10
    309 plays
    3 Neon Lights
    In 2001, Simple Minds released their "Neon Lights" album. Can you remember who originally had hits with these ten songs which were covered on the album?
    Remakes & Covers Average
    10 Q
    Rowena8482
    Mar 28 11
    180 plays




    "Ask FunTrivia" is for entertainment purposes only, and answers offered are unverified and unchecked by FunTrivia. We cannot guarantee the accuracy or veracity of ANY statement posted. Feel free to post an updated response if you feel that an answer is inadequate or incorrect. Please thoroughly research items where accuracy is important to you using multiple reliable sources. By accessing our website, you agree to be bound by our terms of service.