Chapter 4
Know Yourself
Well, I have nothing to do with Baba Ramdev, nor I am going to push you on the path of Yoga with tasks like “Know yourself” or the “Quest to know the truth of life”. All I want to mention here is that one needs to be aware of self. Now you think, if Mr. Natthulal is suffering from severe vision disorder and is unable to see anything far away clearly and then he is doing 120 kph in his shining new Mercedes Benz, what result will one expect?
The point behind this chapter is simple, there is always a difference between doing slow speeds and high speeds and if anything goes wrong while one is doing high speeds then the results may be far more devastating than what one can expect at lower speeds. One must avoid high speed drives when:
- The person is not physically fit
- The person is suffering any kind of physical injury to any body part which is actively used for controlling the vehicle.
- The person is less experienced.
It is all about being how confident you are about your vehicle, your drive and yourself above all. All in all, before going for any high speed drive, it is equally necessary to be fit for the drive both physically and mentally.
Chapter 5
Theory Of Relativity – What Are High Speeds And ‘Where’?
I am sure Mr. Einstein won’t be happy knowing this ‘Theory of Relativity’ of mine but everything is related to another by some way or another.
Okay, so we have a speed limit of 100 kilometers an hour on Yamuna Expessway – one of the finest(maybe the finest itself) road in India. There’s no second thought that even 100 kph also feels slow by the standards of that gem of an expressway but then it’s not so for whole country.
Even high speed is also a relative term, on a hilly road even 60 kph also fells in the category of high speed, on a dual carriageway 80 kph seems to be enough while in the city premises, doing 60 kph is nothing but suicidal. Although we have good expressways where high speeds can be easily maintained but still we strictly recommend one to drive under the speed limits only and the reasons behind it are:
- Your safety is above everything. Example: The tyre burst incidents of Yamuna Expressway are hidden to none, nor their results are. Speed limit is set taking care of travel time, safety and comfort and actually is a good compromise of all. And no doubt, doing 100 kph you are also saving fuel, enhancing your engine life, saving wear of your tyres and a lot more.
- Driving in the speed limit means you are driving at the speed of traffic and it gives you a distinct advantage which results in lesser usage of clutch, brakes and lesser gearshift, hence making the drive a breeze.
All in all, its all about being quick and safe at the same time and high speeds are better attained at expressways only, not only it will make it comfortable for you, but safety is even more important. After all being late is always better than never reaching the destination, maybe the life you will end up saving is yours own.
Chapter 6
Whether I Do 80 Or 120, Does It Make Any Difference?
Well, doing 80 or doing 120 definitely makes a difference. No doubt you are a fantastic driver and you know very well hoe to get the things under control but what actually makes the difference is how your vehicle is going to behave under that speed and adding to it is the distance you are covering every second.
- 80 kph = 22.22 meter/second
- 120 kph = 33.33 meter/second
Now take for an instance, a vehicle suddenly comes into your way at a distance of 40 meters(You are driving a Nissan Sunny). So the thing goes this way:
Your reaction time + time for fluid mechanics as well to work = 0.5 second(so less because you are a very efficient driver)
In that 0.5 second you will end up covering:
11.11 meters@80 kph
16.66 meters@120 kph
So basically, before the brakes are actually applied, you have already covered 11.11 meters when you are doing 80 kph and 16.66 meters when you are doing 120 kph.
This makes that the distance between you and other vehicle is 28.89 meters when you are doing 80 kph and 23.34 meters when you are doing 120 kph.
Now, here are the braking times and braking curve for some cars:
These are the braking distances* for some cars:
Its 46.57 for Sunny and 49.97 for XUV
So at 80 kph your car will come to complete stop at 11.11 + 27.28 = 38.39 meters. Its definitely a close shave as all you have stopped is just 1.61 meters before colliding with other vehicle. Now if we take 100 kph, then you are covering 27.77 meters per second and your reaction time distance covered is 13.88 meters. So all you are left with is 26.11 meters to stop.
Now stopping distance at 100 kph for Nissan Sunny XV is 46.57 meters, this makes you short by 20.46 meters. In other words, you can expect to hit the other vehicle/obstacle at a speed good enough to make major damages to you as well as your car.
This was the scene at 100 kph, so it’s a no brainer that at 120 kph your stopping distance will be long enough that maybe you may end up hitting that other vehicle at 80 kph. With a rise of 20 kph in speed, the stopping distance became 1.7 times, going by even this trend we can find that at 120 kph, the stopping distance can be as high as 79 meters.
I hope it is well understood that how a difference of ‘only’ 20 or 40 kph can make some major differences.