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learning braking distances

  • 20-04-2010 09:37AM
    #1
    Mint Sauce
    Registered Users, Registered Users 2 Posts: 29,293 ✭✭✭✭


    So the test is coming up, one thing that is (slightly) bugging me is the breaking distances, anyone have any ratios for helping remember them or is it just a case of learning them off by heart

    Thanks in advance


Comments

  • #2
    nice1franko
    Closed Accounts Posts: 2,300 ✭✭✭nice1franko


    Can you use the two second rule? http://en.wikipedia.org/wiki/Two-second_rule

    Good luck btw


  • #3
    Mint Sauce
    Registered Users, Registered Users 2 Posts: 29,293 ✭✭✭✭Mint Sauce


    but isn't the two second rule more down to maintaining a safe distance and how long it takes you to pass the same point/landmark after the guy infront of you, rather than your reaction and breaking distance

    :confused:


  • #4
    nice1franko
    Closed Accounts Posts: 2,300 ✭✭✭nice1franko


    It's the same thing except when the obstacle in front of you is stationary.

    It's an easier way to guage braking distance. Learning off a table of "speed versus braking distance" isn't very natural/intuitive; the two-second rule is.

    From that wiki page: "drivers can find it difficult to estimate the correct distance from the car in front, let alone to remember the stopping distances that are required for a given speed, or to compute the linear equation on the fly. The two-second rule gets around these problems, and provides a simple and common-sense way of improving road safety.

    I'm not sure what's required in the exam -even though I only did it 2 or 3 years ago- but I remember the 2 second rule. So, regardless of the exam, from a safety point of view it's good to know.


  • #5
    Permabear
    Closed Accounts Posts: 39,019 ✭✭✭✭Permabear


    This post has been deleted.


  • #6
    daveharnett
    Registered Users, Registered Users 2 Posts: 2,566 ✭✭✭daveharnett


    irish-stew wrote: »
    So the test is coming up, one thing that is (slightly) bugging me is the breaking distances, anyone have any ratios for helping remember them or is it just a case of learning them off by heart

    Thanks in advance
    Average stopping distances are part of the theory test, but I don't think they are on the list of questions for the practical.


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  • #7
    Richie15
    Registered Users, Registered Users 2 Posts: 475 ✭✭Richie15


    The two-second rule becomes the three-second rule when driving a large vehicle, and doubles in wet weather. Most importantly, though, it's a minimum.

    If you're two seconds away and you feel too close, leave more space.
    If your brakes aren't working at their usual efficiency, leave more space.
    If you're wearing thinner-soled shoes than usual, and haven't got used to pressing the brake that extra millimetre to compensate, leave more space.

    Seriously, that last one happened me.


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