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Slow down!

  • 30-07-2007 12:27pm
    #1
    Registered Users, Registered Users 2 Posts: 8,659 ✭✭✭


    Yet another 2 preventable deaths. Just a reminder to everyone what can happen when you drive too fast.

    And I've personally seen two other motorcycle crashes in the past 10 days. Thankfully nobody killed, but the injuries were quite bad in one of the accidents.

    http://www.rte.ie/news/2007/0730/rta.html?rss

    Two dead after motorcycle crashes

    Two men have died in hospital following separate motorcycle accidents yesterday.
    A 34-year-old man died when he lost control of his motorcycle and crashed into a ditch in Tomriland near Roundwood at 11.30am yesterday morning.
    No other vehicle was involved in the crash.
    And a 36-year-old man died after another motorcycle accident in Ballinasloe Co Galway.
    He lost control of his vehicle and crashed in Sralea at around 11.45pm.
    He was removed to Portiuncula Hospital, where he was pronounced dead.


«1

Comments

  • Registered Users, Registered Users 2 Posts: 12,683 ✭✭✭✭Owen


    Both articles you list state "Loss of control". Hows is this related to speed? More to the point, what has speed got to do with safety? It's inappropriate speed that causes road deaths, not general speed. On top of that, 'loss of control' could be anything from brakes failing, to chains snapping, diesel on the road, gravel, potholes, you name it.


  • Registered Users, Registered Users 2 Posts: 68,317 ✭✭✭✭seamus


    You'll find that the bulk of people who "leave the road" in any vehicle are either pissed or tired. Speed and other factors don't come into it so often.


  • Registered Users, Registered Users 2 Posts: 8,659 ✭✭✭CrazyRabbit


    If both drivers were driving at a slower (safer) speed they would not be dead right now. Injured yes, but not dead. I'm 100% sure that speed was indeed a factor in these two deaths.

    I know there are many reasons for loosing control of your bike. Accidents happen, many times through no fault of the driver. My point is that accidents while traveling at high speed (within legal limits or not) are much more likely to result in death. Dropping your speed by 10-15 mph could mean the difference between life and death.


  • Moderators, Education Moderators Posts: 5,532 Mod ✭✭✭✭spockety


    yes, you are correct alright. If they were riding at 5mph they would almost certainly not have died.

    :rolleyes:


  • Registered Users, Registered Users 2 Posts: 1,294 ✭✭✭Pigeon Reaper


    According to the radio one was avoiding Gardai. The other may be attributable to speed but other factors may be in play too. I do agree that inappropiate speed can be a major contributing factor but we cannot say in this case for sure. Just don't push your limits otherwise you may meet with the sausage creature.


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  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding


    First of all RIP, always sad to see someone lose their life on the roads.
    If both drivers were driving at a slower (safer) speed they would not be dead right now. Injured yes, but not dead. I'm 100% sure that speed was indeed a factor in these two deaths.

    I am interested to know how you can be 100% certain that both these men would still be alive if they had been travelling slower. I have a number of questions for you, as the answers do not appear in the article and you seem to have access to additional information.
    1. Are you a crash investigator?
    2. Were you involved with either of the incidents?
    3. What were the injuries sustained / cause of death in both cases?
    4. What speed where the motorcyclists travelling at when the loss of control occurred
    5. What kind of loss of control was it? "Loss of control" is a very vague term.
    I know there are many reasons for loosing control of your bike. Accidents happen, many times through no fault of the driver. My point is that accidents while traveling at high speed (within legal limits or not) are much more likely to result in death. Dropping your speed by 10-15 mph could mean the difference between life and death.

    I personally am getting pretty fed up with the whining about speed kills. As has been pointed out, inappropriate speed kills, that is speed that is inappropriate to the conditions you are travelling in or even inappropriate to you level of skill or the abilities of your machine. Simply telling everyone to slow down is a complete cop out and a load of balls. This is something I have come to expect from idiot politicians trying to appease the idiot masses by giving the impression that they are doing something by identifying the one unifying feature of every road death and screaming about it so it appear that they are doing something. Christ, even the NRA & RSA figures do not support the claim that speed is the overriding factor in most road deaths.

    As for your “dropping you speed by 10-15 mph…….” suggestion, do you want everyone travelling at 75mph on the motorway to slow down to 60mph? Having a blanket drop you speed by 15mph is fcuking stupid. If it is safe to travel at a certain speed what is point in slowing down?

    MrP


  • Registered Users, Registered Users 2 Posts: 8,659 ✭✭✭CrazyRabbit


    No matter the cause of the accidents, the fact is that the drivers were going fast enough to be killed. Granted, I don't know the specifics of these crashes, but obviously they were exceeding the limits of their bikes, the road surface or their riding skills (No 3rd party involvement in these crashes). A little less speed MIGHT have allowed them to keep control (depending on the cause). A little less speed could very well have made for a happier ending to these accidents.

    By making this post, I was simply trying to highlight that what we think might be safe speed, might not be correct. So, if you think you can safely drive at XXX mph in XXX conditions, try easing off by 10-15 mph and putting yourself back well with your limits and the bike's limits. If these 2 guys had done this, they may still be alive.

    In hindsight, I should have posted "Just a reminder to everyone what can happen when you drive too fast for your skill or road conditions"

    Very generally speaking, I feel that motorcylists are overly confident in their machines abilities and in their driving skills. This is why so many motorcyle accidents don't involve other drivers....it's just the motorcyclist 'losing control'. Mostly from speed, poor road surface or both.


  • Registered Users, Registered Users 2 Posts: 68,317 ✭✭✭✭seamus


    By making this post, I was simply trying to highlight that what we think might be safe speed, might not be correct. So, if you think you can safely drive at XXX mph in XXX conditions, try easing off by 10-15 mph and putting yourself back well with your limits and the bike's limits. If these 2 guys had done this, they may still be alive.
    Well, you hit a bit of a connundrum at that point. Most people who've lost control because they were driving beyond their limits, thought that they were driving well within their limits. It's a bit useless to try to tell people, "You may be driving outside of your limits". Ask them to check again, and they'll tell you, "I'm driving well within my limits".
    Very generally speaking, I feel that motorcylists are overly confident in their machines abilities and in their driving skills. This is why so many motorcyle accidents don't involve other drivers....it's just the motorcyclist 'losing control'. Mostly from speed, poor road surface or both.
    I think that's a fair generalisation to make about any single-vehicle accidents though. I would say the rate of single-vehicle accidents for cars is equally as high as for motorcycles, but the fatality rate is far less.
    Motorcycles have a problem in that they don't protect you. This needs to be offset with proper training for newer riders and perhaps government-sponsored "refresher" courses for people who want them.

    The statistics show that there's a sharp spike in motorcyclist fatalities for the 30-something age group. This represents those people who gave up in their twenties, and jump onto a huge bike in their thirties, or all those who always wanted a bike but never had the spare cash. It's fair to say that inexperience and lack of training, above anything, is the main cause of this spike.


  • Registered Users, Registered Users 2 Posts: 19,550 ✭✭✭✭Krusty_Clown


    Very generally speaking, I feel that motorcylists are overly confident in their machines abilities and in their driving skills. This is why so many motorcyle accidents don't involve other drivers....it's just the motorcyclist 'losing control'. Mostly from speed, poor road surface or both.
    Are you a fellow motorcyclist or a concerned citizen, just passing on some insightful observations? Generally (and there's been a lot of generalizing already) only those people who ride bikes every day can grasp the vulnerability of riding a motorcycle. A spill at 30mph can kill you if you hit a tree, whereas a spill at 30mph in a car is unlikely to do significant damage to the vehicle not to mind the driver. Speed doesn't kill. Contact with large immovable objects kills.

    I often wonder how many of these single vehicle accidents are in fact single vehicle accidents. I have become blase about the number of times these days that I have to take evasive action while riding within the speed-limit on my commute to work. Vehicles over taking on the wrong side of the road, vehicles invading my personal space (changing lanes directly into my path).
    Sure, like every other road user, we have our fair share of speeders, learners, and over-confidence, but reporting accidents tends towards the hysterical and the biased.

    RIP Fellas..


  • Registered Users, Registered Users 2 Posts: 8,659 ✭✭✭CrazyRabbit


    Are you a fellow motorcyclist or a concerned citizen, just passing on some insightful observations? Generally (and there's been a lot of generalizing already) only those people who ride bikes every day can grasp the vulnerability of riding a motorcycle. A spill at 30mph can kill you if you hit a tree, whereas a spill at 30mph in a car is unlikely to do significant damage to the vehicle not to mind the driver. Speed doesn't kill. Contact with large immovable objects kills.

    I often wonder how many of these single vehicle accidents are in fact single vehicle accidents. I have become blase about the number of times these days that I have to take evasive action while riding within the speed-limit on my commute to work. Vehicles over taking on the wrong side of the road, vehicles invading my personal space (changing lanes directly into my path).
    Sure, like every other road user, we have our fair share of speeders, learners, and over-confidence, but reporting accidents tends towards the hysterical and the biased.

    RIP Fellas..

    I've been driving motorbikes for 7 years. 'Lost control' twice (oil slick & gravel on a main road). Been hit once (muppet overtaking me while going through a one-lane left hand turn).


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  • Closed Accounts Posts: 1,467 ✭✭✭bushy...


    Yet another 2 preventable deaths. Just a reminder to everyone what can happen when you drive too fast.


    Can't be bothered ranting, maybe later ....meanwhile some potentially fatal stuff that wouldn't have left much trace/not be conclusive i've seen or been on go wrong ( all different bikes btw)

    Guy gets highsided , new bike , casting flash in gearbox caused it to lock up .Roadrace
    Sudden fuel leak over back tyre , main road ,<100k , not great in dry , well dodgy if wet.
    Front brake seal failing turning bike around in yard.
    Front master cylinder failing after been out for a test spin
    Clip on breaking moving bike around yard.
    Internal pin breaking in steering damper.< 100k
    Rear shock linkage breaking .
    Coolant hose splitting , a)hot b) slippery
    Oil hose rupturing ( older type gsxr , oil pump of doom in them , can vomit oil at a serious rate). a) very hot b) very slippery
    Cracked headstock bearing race
    Immobiliser disabling ignition while in motion
    Hairline crack in resistor in ignition switch causing bike to occassionly lose power/come back to life suddenly .

    Not always speed you see , and i suppose often no-one looks a bit deeper because its not going to help much.


  • Registered Users, Registered Users 2 Posts: 19,050 ✭✭✭✭murphaph


    No matter the cause of the accidents, the fact is that the drivers were going fast enough to be killed.
    But that's a 'contract' we enter into when we step into/onto any motorised vehicle. Human beings are not designed to travel faster than walking pace and if something goes wrong, the body does not react well to decelerating from even moderate speeds to 0mph in 0.25 seconds.

    The road surfaces in general in the RoI are very poor and tar banding abounds. Little if any heed is paid to particular dangers faced by PTWs by the local authorities and I know I've had a few scary moments on gravel that had accumulated at junctions because the LA simply hadn't made any attempt to remove it in years!

    We still see untextured steel plate being used to cover excavated road surfaces. Fine and dandy in a car-lethal in the wet on a bike.

    These bikers may have had an input into their own deaths, but I'm willing to wager the road engineering (or lack of it) was reaponsible too. As one poster already pointed out-we'd all be fine if we pootled about at 5mph.


  • Closed Accounts Posts: 26 fergusdo


    bushy... wrote:
    QUOTE=CrazyRabbit]Yet another 2 preventable deaths. Just a reminder to everyone what can happen when you drive too fast.


    Can't be bothered ranting, maybe later ....meanwhile some potentially fatal stuff that wouldn't have left much trace/not be conclusive i've seen or been on go wrong ( all different bikes btw)

    Guy gets highsided , new bike , casting flash in gearbox caused it to lock up .Roadrace
    Sudden fuel leak over back tyre , main road ,<100k , not great in dry , well dodgy if wet.
    Front brake seal failing turning bike around in yard.
    Front master cylinder failing after been out for a test spin
    Clip on breaking moving bike around yard.
    Internal pin breaking in steering damper.< 100k
    Rear shock linkage breaking .
    Coolant hose splitting , a)hot b) slippery
    Oil hose rupturing ( older type gsxr , oil pump of doom in them , can vomit oil at a serious rate). a) very hot b) very slippery
    Cracked headstock bearing race
    Immobiliser disabling ignition while in motion
    Hairline crack in resistor in ignition switch causing bike to occassionly lose power/come back to life suddenly .

    Not always speed you see , and i suppose often no-one looks a bit deeper because its not going to help much.[/QUOTE]




    Christ, I've just made it in from work - don't think I'll venture out tomorrow and I thought that to fly in the Shuttle was dangerous!


    Of course your right, it's not always speed but - which is the more/most likely/most common cause? Drink and speed or some of the more exotic above.

    More years ago than I want to think about, I remeber one of my instructors saying to me that the seriously big difference between an accident in car and one on a bike is that it's very difficult to have a minor accident on a bike! I still think it's one of the best pieces of 'advice' I have ever been given.


  • Registered Users, Registered Users 2 Posts: 6,236 ✭✭✭Idleater


    I've been driving motorbikes for 7 years. 'Lost control' twice (oil slick & gravel on a main road). Been hit once (muppet overtaking me while going through a one-lane left hand turn).

    And just out of interest, could these incidents where you " 'Lost control' " have been avoided if you had been going slower?

    If so, why were you not driving slower in order to prevent these incidents happening?


  • Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    Any accident will nearly always be less damaging the slower your speed.
    From a simple thing like hitting a wall to having to do an emergency stop.
    The slower your are moving the less dangerous the accident will be.

    "Appropriate speed" is a great slogan to let you drive at whatever speed you like.
    Who decides whats appropriate?

    The only time speed is important is when you have an accident, then you can decide if your speed was appropriate or not.:cool:


  • Registered Users, Registered Users 2 Posts: 19,550 ✭✭✭✭Krusty_Clown


    GreeBo wrote:
    Any accident will nearly always be less damaging the slower your speed.
    Not entirely correct. If you ride too slow you are creating a brand new set of hazards. See CrazyRabbits experiences. Not all accidents involve the motorcyclist hitting objects, sometimes we're the victims. Remember those two unfortunate riders killed last year on their cruisers, when someone hit them head on, on the wrong side of the road?


  • Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    Not entirely correct. If you ride too slow you are creating a brand new set of hazards. See CrazyRabbits experiences. Not all accidents involve the motorcyclist hitting objects, sometimes we're the victims. Remember those two unfortunate riders killed last year on their cruisers, when someone hit them head on, on the wrong side of the road?
    But in a head on collision your speed is just as important.
    Two vehicles travelling at 100kph = hitting a wall at 200kph

    Obviously "too" slow creates a hazard, but you cannot argue against the fact that if everyone drove slowly there would be far less fatal crashes.


  • Registered Users, Registered Users 2 Posts: 19,550 ✭✭✭✭Krusty_Clown


    GreeBo wrote:
    But in a head on collision your speed is just as important.
    Two vehicles travelling at 100kph = hitting a wall at 200kph

    Obviously "too" slow creates a hazard, but you cannot argue against the fact that if everyone drove slowly there would be far less fatal crashes.
    I wouldn't fancy my chances being hit head-on at 100km/hr, regardless of whether I was stationary or riding at the speed limit.
    GreeBo wrote:
    ...that if everyone drove slowly there would be far less fatal crashes.
    Agreed. Throw in road improvements and tackle drink driving and poor driving, too though.

    Anyone know what the fatality rates are like in Jersey? They have a maximum speed of 40mph. All the same, don't think I'd enjoy living there. :)


  • Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    I wouldn't fancy my chances being hit head-on at 100km/hr, regardless of whether I was stationary or riding at the speed limit.
    I think your best bet would be turn around and try go at least 100km/hr in that direction :)


  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding


    GreeBo wrote:
    But in a head on collision your speed is just as important.
    Two vehicles travelling at 100kph = hitting a wall at 200kph

    Ok then, I am being really really safe. I have followed your advice and I am doing 5kph. w00t! How safe must I be? So, I get hit bt an oncoming car that is doing 120kph. How much have I increased my chance of survival by travelling at 5kph?

    MrP


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  • Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    MrPudding wrote:
    Ok then, I am being really really safe. I have followed your advice and I am doing 5kph. w00t! How safe must I be? So, I get hit bt an oncoming car that is doing 120kph. How much have I increased my chance of survival by travelling at 5kph?

    MrP
    27.6% increased survival rate.


  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding


    GreeBo wrote:
    27.6% increased survival rate.
    :D I would hazard it would not make the slightest bit of difference.

    Personally I think the single greatest contribution you can make to your chances of survival on a bike is training.

    I don't think appropriate speed is a cop out or an excuse. Training is a tool that will allow you to work out what the appropriate speed is for a certain set of conditions.

    The "just slow down" mantra is a bit of an insult and is an easy way for the government to appear to be doing something when in fact they are not.

    To be honest reckless speeding is not a problem, it is a symptom of a problem. The problem is a lack of training and a bad attitude.

    MrP


  • Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    MrPudding wrote:
    To be honest reckless speeding is not a problem, it is a symptom of a problem. The problem is a lack of training and a bad attitude.

    Too true, but I still maintain that the faster you are going the worse any crash or incident is going to be.
    I dont believe that "going fast" necessarily causes crashes, it just makes them worse and harder to avoid.


  • Registered Users, Registered Users 2 Posts: 68,317 ✭✭✭✭seamus


    GreeBo wrote:
    27.6% increased survival rate.
    What was the survival rate before the increase? 0.00001%? :)


  • Registered Users, Registered Users 2 Posts: 8,659 ✭✭✭CrazyRabbit


    nereid wrote:
    And just out of interest, could these incidents where you " 'Lost control' " have been avoided if you had been going slower?

    If so, why were you not driving slower in order to prevent these incidents happening?

    No, the accidents were not preventable unless perhaps I was driving at 10mph which is unreasonable. But at the time, I would have thought that 60-70mph would be an 'appropriate' and 'safe' speed to travel on the road where these two accidents happened (same road, 2 months apart). I had regularly driven on this road at that speed. I stick to 50mph now. Safer, doesn't cause problems for other drivers, and adds maybe 2-3 mins to my journey.

    The only reason I was traveling much slower on the days I had the accidents, was due to heavy traffic one one occasion and very heavy rain on the other. If I had been traveling at 60-70mph I might have been killed or at the very least I would have been more seriously injured. I consider myself very lucky and never curse slow moving cars anymore :D

    I'm not suggesting that we should all drive around at a snails pace, and accidents can happen at any speed and for 100's of reasons. All I would suggest is to not be in such a hurry, and don't push yourself or your bike to the limit. Stay well within your skill and your bike's ability. If you are in an accident, that 10-15 mph speed reduction might just be enough to save your life or someone elses.


  • Registered Users, Registered Users 2 Posts: 6,236 ✭✭✭Idleater


    If you are in an accident, that 10-15 mph speed reduction might just be enough to save your life or someone elses.

    I am with Mr P on this one.

    If we all have proper training, so that we can learn how to judge the road conditions dynamically as we drive them then we will be less at risk of causing an accident (due to whatever speed) and we will also be able to mitigate any circumstances outside our control so that we stand the best possible chance of not getting killed.

    Ask any racer who will tell you there is a big difference between being quick and being fast. Any biker is fast, being quick on the other hand involves reading the road, the conditions and many many other factors, and combining them all together to make progress.

    L.


  • Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    nereid wrote:
    I am with Mr P on this one.

    If we all have proper training, so that we can learn how to judge the road conditions dynamically as we drive them then we will be less at risk of causing an accident (due to whatever speed) and we will also be able to mitigate any circumstances outside our control so that we stand the best possible chance of not getting killed.
    I think you are still missing the point though.
    Im not saying that speeding will cause you to have an accident (though it might) I am saying that an accident at a higher speed will be a worse accident than an accident at lower speed.
    Its also harder to avoid something the faster you are going.


  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding


    GreeBo wrote:
    I think you are still missing the point though.
    Im not saying that speeding will cause you to have an accident (though it might) I am saying that an accident at a higher speed will be a worse accident than an accident at lower speed.
    Its also harder to avoid something the faster you are going.

    The point nereid and myself are trying to make, I think, is that simply saying slow down is dumbing down the message. If everyone had decent training they would be travelling at a speed which is appropriate for their skill, their machine and the conditions they are travelling in.

    What you are saying is that if I am travelling along the M1 doing 120 or 130, that I should slowdown to 105 or 115. Why, what is the point. I am constantly checking my environment and I believe I can travel safely at 120 or 130. Should something change I will reassess and perhaps decide to drop my speed.

    If you have poor observation and planning skills the chances are the car pulling out in front of you will hit you anyway, regardless of your speed unless you are talking about a huge differential, plus, if this one doesn’t hit you the next one might.

    I would prefer if we all rode at a level where we were safe because of the action we take to be safe rather than internally saying I reckon 120 is safe so I will slow down to 105. To me that is just stupid.

    MrP


  • Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    ok well whats the difference in stopping distances for your bike when travelling at 100kp/h versus 120 kp/h?


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  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding


    Off the top of my head I don't know, but then if it is safe to do 120 I won't have to find out will I?

    MrP


  • Registered Users, Registered Users 2 Posts: 1,294 ✭✭✭Pigeon Reaper


    this is a basic one for working stopping distances

    d = V2/(2g(f + G))

    Where:
    d = Braking Distance (ft)
    g = Acceleration due to gravity (32.2 ft/sec2)
    G = Roadway grade as a percentage; for 2% use 0.02
    V = Initial vehicle speed (ft/sec)
    f = Coefficient of friction between the tires and the roadway

    Required Stopping Distance - metres
    Decision distance plus Action distance

    The table below is from NZ road safety for a small car but the stopping distance roughly equates to a bike if not a bit better than the average bike as the cars footprint is much larger than a bikes thus negating the mass difference.

    KM M
    100 146
    110 174
    120 203
    130 235
    140 269

    Roughly if speed doubles stopping distance quadruples in the dry.


    You did ask after all......


  • Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    MrPudding wrote:
    Off the top of my head I don't know, but then if it is safe to do 120 I won't have to find out will I?

    MrP
    sorry, I want aware that you were omniscience


  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding


    GreeBo wrote:
    sorry, I want aware that you were omniscience
    Never said I was, I just think a blanket slow down is stupid. Where does it end? So I have slowed down to 100, would I not be safer at 90? Actually, maybe I would be safer at 80.

    Then, as Krusty pointed out, slowing down, especially beyond the speed limit opens a whole new range of dangers. Irish drivers do not take kindly to people travelling below the speed limit. I would be one of the first to say you should not allow this to effect your own drive or ride, but at the same time it is a hazard which has to be taken into consideration with the same importance as any other hazard we come across on the roads.

    If the conditions allow it I will ride or drive to make the best progress I can. If for any reason I think it is not safe to travel at the speed limit, or whatever speed I have chosen to do, then I will slow down to what I feel is appropriate.

    This is the difference. I think people should be trained to a skill level where they can assess the conditions and arrive at a speed which they believe is appropriate for the conditions and the hazards they are faced with. This allows for a dynamic journey for which the speed will vary depending on what is going on. So, when I am on a straight road with no traffic in front or behind, no oncoming traffic, no laybys, low hedges that allow me to see there are no animals about to walk on to the road, basically as good as it gets. With a properly trained rider they will go at a speed appropriate for those conditions, in this case I would suggest at the limit for the road as there appear to be no hazards. In your system they would go at 15kph below. What is the point of that?

    MrP


  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding



    You did ask after all......
    Nutter.:D

    My IAM group was doing some theory sessions a couple of weeks ago. We were talking about speed. The presenter asked a couple of questions, I found the answer to one of them to be very surprising. I haven’t checked to see if it was accurate, but it did come from the police and we know they never get anything wrong.

    The question was, you have 2 cars travelling along a road. One is moving at 30mph & the other at 32. They both attempt to stop at the same time. Assuming all things, bar the initial speed, are equal what speed will the second car be doing when the first comes to a complete stop. Apparently the answer is 11mph, I was quite surprised by that.

    MrP


  • Closed Accounts Posts: 2,407 ✭✭✭Quint


    You bunch of pedantic nerds! :D
    Just be careful out there!


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  • Registered Users, Registered Users 2 Posts: 19,550 ✭✭✭✭Krusty_Clown


    It reminds me of those road signs that say 'Slow Down'.
    How do the damn signs know what speed you were doing before you passed it? Now that's omniscience. :)

    slow_d16.jpg


  • Registered Users, Registered Users 2 Posts: 8,659 ✭✭✭CrazyRabbit


    I guess it all boils down to driving at what you think is a safe speed. The problem there is that it is your perception of a safe speed, and it can be wrong.

    If you think 120 is safe for the road conditions, traffic, bike ability & your riding skill, then all I would suggest is to drop to 100-105....Just in case you overestimate the 'safe' speed.

    And similar logic applies to other areas of driving. Imagine approaching a bend where there is a lot of gravel on the ground. At what angle could you 'lean' the bike into the turn before the tyres lost grip (lets leave speed out of the equation)? Most drivers have a pretty good idea of their bikes ability in this situation, but I'd bet money that at least 2/10 people would come off their bike while testing what they thought was a safe angle.


  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding


    I
    If you think 120 is safe for the road conditions, traffic, bike ability & your riding skill, then all I would suggest is to drop to 100-105....Just in case you overestimate the 'safe' speed.
    That is fcuking insane. If you ever had any thoughts about attaining an advanced certificate forget it. Don't drop your speed just in case, get some fcuking training and learn how estimate the speed you should be doing properly.

    MrP


  • Registered Users, Registered Users 2 Posts: 36,543 ✭✭✭✭Hotblack Desiato


    MrPudding wrote:
    That is fcuking insane. If you ever had any thoughts about attaining an advanced certificate forget it. Don't drop your speed just in case, get some fcuking training and learn how estimate the speed you should be doing properly.

    MrP

    QFT

    The rule of safe riding (for the info of the OP it's NOT driving, we're not drivers, cagers are drivers) is to adjust one's speed to the conditions continuously, NOT pick a number and then knock off 20 'to be safe'.

    In Cavan there was a great fire / Judge McCarthy was sent to inquire / It would be a shame / If the nuns were to blame / So it had to be caused by a wire.



  • Registered Users, Registered Users 2 Posts: 535 ✭✭✭Dorsanty


    Well it looks like someone on Dublin County Council reads the boards cause Dublin streets with 50kph speed limits could soon find themselves as 30kph limits.

    http://www.rte.ie/news/2007/0803/speed.html?rss

    Damn that's slow.

    How about a bit of effort in cracking down on the pedestrian culture of cross the road where and when you feel like it.


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  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding


    Dorsanty wrote:
    Well it looks like someone on Dublin County Council reads the boards cause Dublin streets with 50kph speed limits could soon find themselves as 30kph limits.

    http://www.rte.ie/news/2007/0803/speed.html?rss

    Damn that's slow.

    How about a bit of effort in cracking down on the pedestrian culture of cross the road where and when you feel like it.
    I was thinking something similar, but to be honest, the slow limits in built up areas are not something I have a probelm with.

    I do agree with you on the suicidal pedestrians and cyclists though. It needs to be a two part process. I think there should be stricter enforcement of the rules that would keep pedestrians and cyclist safer, red light enforcement & speed for example. But at the same time, I think these 2 groups need to also take some responsibility for their own actions and safety. If a pedestrian keep running across a junction when the traffic has a green light, he will eventually get hit. If cyclist keep ignoring the rules of the road they will eventually get hit too.

    MrP


  • Registered Users, Registered Users 2 Posts: 8,659 ✭✭✭CrazyRabbit


    MrPudding wrote:
    That is fcuking insane. If you ever had any thoughts about attaining an advanced certificate forget it. Don't drop your speed just in case, get some fcuking training and learn how estimate the speed you should be doing properly.

    MrP

    Been there, done that. Obtained 3 months ago.

    Why is it so hard to admit that a person can overestimate a safe speed? Are you THAT perfect that your estimates are spot on, all the time?

    And if road conditions do change, the faster you are going, the longer it's going to take you to adjust to the new safe speed.

    I agree 100% that training is the way to go. But slowing down to a speed well with the limits of the driver, road & bike is good advice also. Driving on the edge of those limits is just asking for trouble, regardless of your training.


  • Registered Users, Registered Users 2 Posts: 6,236 ✭✭✭Idleater


    Driving on the edge of those limits is just asking for trouble, regardless of your training.

    How do you even get close to knowing "the edge" of your limits?

    I've done trackdays (Just a FYI and not a brag or anything) and there you learn about speed and control of speed.

    so, I personally know, that my bike will do 200kmph, and will accelerate from 30 (last corner) to 157 (ish - didn't really want to look) and back down to 30 in 10 to 15 seconds.

    I never asked for trouble, nor did I find it. And don't go telling me that track riding is completely different, it's not, it is just another experience that you learn from. Driving corners coming up at you at 160kmph when you are hard on the brakes and leaning the bike over and putting the power down takes all the concentration in the world.

    The only thing that is different is that there isn't (shouldn't) be anyone coming in the opposite direction.

    Finally, I don't think anyone here is advocating speed, or even saying throw caution to the wind, I think it is the opposite. It is far better to know why you should slow down rather than just a generic "slow down".

    Ninja mentioned to it earlier. How does your "drive at 105" translate in the snow? does it still apply?

    L.


  • Registered Users, Registered Users 2 Posts: 36,543 ✭✭✭✭Hotblack Desiato


    nereid wrote:
    (trackdays) The only thing that is different is that there isn't (shouldn't) be anyone coming in the opposite direction.
    Well, not the only thing, you have marshals, no pedestrians, no animals, no kids, no cows**t, you can get gravel and oil but there should be a flag!
    You can go steaming into a corner confident that your exit is clear and the tarmac will provide good grip.
    On the road (and I know you know this, but some trackday pilots don't seem to) the limit usually isn't the grip in your tyres, but how far ahead you can see to be clear.

    But trackdays are great especially for giving you confidence to brake hard when you have to and corner hard when you have to. Lots of road riders crash when they would have been ok if they'd had the confidence to brake harder on the way into a hazard (some hardly use the front brake) or lean it over more when the corner tightened up on them.

    But as a trainer friend of mine is fond of saying, when riding on the road it's better to "use your superior judgement to avoid having to use your superior skills" :D
    Finally, I don't think anyone here is advocating speed, or even saying throw caution to the wind, I think it is the opposite. It is far better to know why you should slow down rather than just a generic "slow down".

    The 'limit point' is good for this. Again your speed is determined by what you can see, above all - otherwise you're effectively riding blind.

    Sorry CrazyRabbit for the snarky comment on 'driving' but it's a pet hate of mine to describe riding a bike as 'driving'. It's a superficially similar activity but demands a lot more concentration and a whole different skill set. Lots of GTI guys think they can hop onto a powerful bike and be a l33t rider but (as we know) it's nothing like that simple. I think using a different word helps to reinforce that distinction.

    In Cavan there was a great fire / Judge McCarthy was sent to inquire / It would be a shame / If the nuns were to blame / So it had to be caused by a wire.



  • Registered Users, Registered Users 2 Posts: 9,788 ✭✭✭MrPudding


    Been there, done that. Obtained 3 months ago.

    Congratulations. Which one did you do? Please tell me, did you ride 15kph below the limit at all times during your test? I know that in the UK for either RoSPA, which I start soon, and IAM, which I have done, if you used your system you would fail. Having a blanket slow down is effectively admitting that you are not capable of, or at least lack the confidence, to work out a safe speed for the conditions. This is not advanced riding.

    I don't think I have ever really riden at the limits of my self and most certainly not my bike. I have had a few hairy moments, pretty much all before advanced training mind you. I ride at sensible but still progressive speeds. I out a lot of effort into observation and reading the conditions. personally find this a much more rewarding and safe way yo ride my bike than to assume I have got it all wrong and just slow down for no other reason.

    I think Nereid's comment sums it up best:
    Nereid wrote:
    It is far better to know why you should slow down rather than just a generic "slow down".

    MrP


  • Closed Accounts Posts: 3,167 ✭✭✭gsxr1


    Lads I think that raving on about Rospa statistics and reports has got noting to do with anything.

    Road awareness is all common sense.

    One can use speed as long as he assess the situation and weighs up the risks correctly. .


    if ya take to many chances you know that sooner or later you may fall.

    its your choice. plain and simple.
    and lots of luck helps.


  • Registered Users, Registered Users 2 Posts: 36,543 ✭✭✭✭Hotblack Desiato


    gsxr1 wrote:
    Road awareness is all common sense.

    One can use speed as long as he assess the situation and weighs up the risks correctly.

    It's not common sense at all. It's a skill that needs to be taught. We still don't have proper regulation of driving or riding instructors, it's on the way but this is 2007 ffs, this should have been addressed 30 or 40 years ago as should the provisional licence rules and the test waiting list. We will get compulsory training for riders but not for anyone else, why?

    'Assessing the situation and weighing up the risks' isn't common sense, it's a learned skill. Plenty of people on our roads just don't realise the risks they're running every day and the danger they're putting themselves and others into. As vulnerable road users we have a lot to lose not only from our own mistakes, but from those of others too, and it's the latter that I find unacceptable. Having to share the road with idiotic, incompetent, drunk, half-blind, think-they-know-it-alls or the just plain homicidal is simply not acceptable but nothing is being done because not inconveniencing voters is FAR more important politically than reducing road deaths.

    In Cavan there was a great fire / Judge McCarthy was sent to inquire / It would be a shame / If the nuns were to blame / So it had to be caused by a wire.



  • Closed Accounts Posts: 3,167 ✭✭✭gsxr1


    ninja900 wrote:
    It's not common sense at all. It's a skill that needs to be taught. We still don't have proper regulation of driving or riding instructors, it's on the way but this is 2007 ffs, this should have been addressed 30 or 40 years ago as should the provisional licence rules and the test waiting list. We will get compulsory training for riders but not for anyone else, why?

    'Assessing the situation and weighing up the risks' isn't common sense, it's a learned skill. Plenty of people on our roads just don't realise the risks they're running every day and the danger they're putting themselves and others into. As vulnerable road users we have a lot to lose not only from our own mistakes, but from those of others too, and it's the latter that I find unacceptable. Having to share the road with idiotic, incompetent, drunk, half-blind, think-they-know-it-alls or the just plain homicidal is simply not acceptable but nothing is being done because not inconveniencing voters is FAR more important politically than reducing road deaths.


    experience to the best tool of all man. CBT is a good start but your on your own after that. Unless you want to spend a fortune . That blue road craft book has been a great tool for me . Would recommend it for riders and drivers.

    But my way of thinking ninja is to forget the facts and figures and get on your bike and ride.



    I think track days will get ya stopped safer than lessons, and they are much more fun than following an instructor around town all day.


    I love riding fast as fook(with in reason) Not going to stop. Its a dangerous Hobie we are all into, sure that is part of the appeal. Scaring the bejesus out of your self.:D

    will things ever change. Lads are still going to die every week in summer twenty years from now and cagers are still going to drive with out thinking.
    Good thread this.


  • Registered Users, Registered Users 2 Posts: 36,543 ✭✭✭✭Hotblack Desiato


    gsxr1 wrote:
    experience to the best tool of all man.
    I disagree. Plenty of people out there with lots of experience, especially in cages, who are crap drivers, but tbh I have to include some riders I know in that too!
    Go on any group ride and I guarantee you will see people with plenty of experience on bikes who are f**king useless!!! One of the big reasons I don't do group rides if I can possibly avoid it.
    Some people learn from their own mistakes, others never will.
    We must be the only developed country in the world where most people still seem to think that teaching themselves to drive/ride is perfectly ok.
    That blue road craft book has been a great tool for me . Would recommend it for riders and drivers.
    It's meant to be used as part of a course of tuition. I don't think that many people would get anything like the full benefit out of the book on its own.
    Its a dangerous Hobie we are all into, sure that is part of the appeal. Scaring the bejesus out of your self.:D
    Hobby? <spit>

    But any time I scared myself on a bike, I found out why and didn't make that mistake again. I try to enjoy every ride and end each one ready for more, nearly getting creamed or almost losing it means the ride doesn't end on a good note.
    Lads are still going to die every week in summer twenty years from now and cagers are still going to drive with out thinking.
    Unfortunately this is exactly the sort of fatalistic attitude we have in this country.
    Sure we can never eliminate road deaths, but that's no excuse for the politicians ignoring the things that we can all see desperately need to be done.
    Fewer morons on the road (on 2 or 4 or more wheels, or none) has got to be a good thing for the rest of us.

    In Cavan there was a great fire / Judge McCarthy was sent to inquire / It would be a shame / If the nuns were to blame / So it had to be caused by a wire.



  • Closed Accounts Posts: 3,167 ✭✭✭gsxr1


    ah no. ya spat on me eyes. :rolleyes: dam spell checker let me down

    do ya mean to say you don't scare your self just a little. push the limit the very odd time.

    not suggesting doing stoppies or wheelies in town more brisk country road riding.. Where a corner might tighten up ect.....


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