This is a good thread. I cant believe I missed out on this all this while.
Today a weird thing happened and I wanted to make a post of it here to illustrate the advantages of defensive driving, some driving tips, etiquette and common mistakes.
In my route to work every day, I follow this route. Please see the attached image. For easy understanding, I have split them into sections from a-f in the direction of my drive. The entire section has a speed limit of 100 kmph and there are no dividers. Just one lane to go and one lane to come. And this is in Germany. So honking is usually frowned upon.
Anyway, today, we were a convoy of 6 cars starting at section-a and accelerating towards 100 kmph limit. I was the 4th. There were 3 cars ahead and 2 behind. As we approached section-b, we were steadily at 95-98 kmph which is the norm for a road of this type. Surprise speed cameras and stuff. Plus great mileage in my car at this speed.
The car behind me was almost tailgating and honked at me to make me go faster. But he was not a very patient guy, and started to overtake once he realised that I was not going to go any faster. I couldnt go any faster because there were 3 cars in front of me. But this "
south side of a north facing horse" didnt see that. He built up speed to 120-125 and started overtaking giving me (and the cars in the front) a single long finger. I was pissed off and annoyed. I wanted to give him one back. But I maintained my cool. He overtook all of us and raced ahead. We reached section-d and realised that he was nowhere in sight. He must have sped off at 130-140 kmph in a road with speed limit 100 kmph.
When we reached section-f, we saw that his car was rolled over on the opposite side of the road and he was crawling out of his overturned car. The right hand turn was too much for his speed and he didnt estimate the speed of the cars in the opposing lane when attempting to overtake. In Germany we drive on the right, and we overtake on the left. So in a right hand curve, the visibility is reduced further because the road curves towards right and his view of the opposite side road was blocked by the convoy of vehicles he wanted to overtake.
I felt bad for this guy. But I felt happy because he probably learnt his lesson and will think twice from now on before endangering other road users on the road. Which got me thinking about defensive driving. And the reason for this post.
Section #A
- Straight
- Good visibility on the straight
- Only leading vehicle in opposing lane is visible
- Hard to estimate the speed of the opposing vehicle
- Hard to estimate number of cars in opposing lane
- Hard to estimate number of cars in our lane
- Overtaking only possible if NO vehicles in the opposing lane or vehicles approach is very far away
Section #B
- Left curve
- Ok visibility
- Easy to estimate the speed of the opposing vehicle
- Easy to estimate number of cars in opposing lane
- Easy to estimate number of cars in our lane
- Overtaking not recommended. But possible if NO vehicles in the opposing lane or vehicles approach is very far away
Section #C
- Straight
- Good visibility on the straight
- Only leading vehicle in opposing lane is visible
- Hard to estimate number of cars in opposing lane
- Hard to estimate number of cars in our lane
- Overtaking possible based on factors estimated in section #B
Section #D
- Right curve and then left curve
- Hard to estimate number of cars in opposing lane
- Hard to estimate number of cars in our lane
- No overtaking recommended because of swinging behaviour of cars and trucks
Section #E
- Straight
- Good visibility on the straight
- Only leading vehicle in opposing lane is visible
- Hard to estimate number of cars in opposing lane
- Hard to estimate number of cars in our lane
- Hard to estimate the speed of a the leading vehicle in the opposing lane
- Overtaking possible if NO vehicles in the opposing lane or vehicles approach is very far away
Section #F
- Right curve
- Bad visibility
- Very hard to estimate number of cars in opposing lane
- Very hard to estimate number of cars in our lane
- Absolutely no overtaking possible or recommended
So when it rains or snows, the speed reduces accordingly. Snow fall is more dangerous than rain because rain water flows to the side of the road. But snow just stays on the road. So, when it rains, I drive at 70-75 kmph. And when it snows, 60-65 kmph. And in both conditions, absolutely no overtaking. We might be in control of our car. But we dont know what might happen when a slight oversteer or understeer happens. Both to our car or the overtaken car.
In my experience, while driving,
error of judgement is a major contributing factor to an accident. When we drive, and we overtake, we dont take necessary factors into account while making the split second decision of overtaking. The factors we need to consider are
1. Our vehicle speed and its limitations
2. Speed of vehicle(s) that we wish to overtake
3. No. of vehicle(s) that we wish to overtake
4. Vehicle(s) in the opposing lane
5. No. of vehicle(s) in the opposing lane
6. Speed of vehicle(s) in the opposing lane
7. Topography of the road
8. Weather conditions
And we vastly overestimate #1 and underestimate everything else.
So fellow road users. Drive responsibly. Wear seatbelts. And allow for the mistakes of other drivers. And be aware.