Bletchleyite
Veteran Member
Continuing this in a new thread:
I'd question how good tech is that knows if you're too close to the car in front. I drove a friend's car last week which had adaptive cruise control, and on none of the settings did I feel comfortably distant from the car in front - the "nearest" setting I felt was downright dangerous and well under the "two second rule" which is an absolute bare minimum in perfect conditions. I personally think it should not be legal for these systems to allow closer than the Highway Code stopping distances, and they should always brake (or at least lift off) to re-create the distance as soon as safely possible if someone cuts you up - the system on his car (a newish Qashqai) did not, and I found that dangerous to the point of quite scary.
There are also considerations like how far the next car to overtake is and how busy the motorway is, and if it is three or four lanes. Changing lane comes with risk in itself, so sometimes staying out for a second overtake is the best and safest approach where that overtake will be quite soon. Diving in and out at high speed as is common for drivers of premium German cars is really not a sensible practice.
So people shouldn't just sit in the middle lane while overtaking nothing, but if overtaking is taking place and is about to take place again there are too many variables for sensible automation.
I do like blind spot assist, yes. My car doesn't have it, but it is nice to have as an addition to turning your head (not instead of it!)
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FWIW an automatic move left feature could be quite dangerous if someone is trying to pass on the left at speed, a lazy act which is encouraged by adaptive cruise control. It is most annoying when you are overtaking someone, they pull back in and before you have chance to execute the correct checks, indicate and move left (NEVER move at the same time as them as it removes their ability to abort the manoeuvre if something happens) some idiot in a premium German car (for it always is) shoots past 20mph over the limit, followed by several more which make getting back over difficult.
We are not actually far off technology that could make people go into Lane 1. After all cars know whether you are too close to the car in front, would know the difference between the solid hard shoulder line and other lines, and could therefore work out if you are indeed overtaking the car in front (therefore can stay out) or not.
I'd question how good tech is that knows if you're too close to the car in front. I drove a friend's car last week which had adaptive cruise control, and on none of the settings did I feel comfortably distant from the car in front - the "nearest" setting I felt was downright dangerous and well under the "two second rule" which is an absolute bare minimum in perfect conditions. I personally think it should not be legal for these systems to allow closer than the Highway Code stopping distances, and they should always brake (or at least lift off) to re-create the distance as soon as safely possible if someone cuts you up - the system on his car (a newish Qashqai) did not, and I found that dangerous to the point of quite scary.
There are also considerations like how far the next car to overtake is and how busy the motorway is, and if it is three or four lanes. Changing lane comes with risk in itself, so sometimes staying out for a second overtake is the best and safest approach where that overtake will be quite soon. Diving in and out at high speed as is common for drivers of premium German cars is really not a sensible practice.
So people shouldn't just sit in the middle lane while overtaking nothing, but if overtaking is taking place and is about to take place again there are too many variables for sensible automation.
I do not think I have ever used my adaptive cruise. Cruise goes off if there is even a chance that I won't be able to keep my set speed. However, I think it is just a parameter adjustment in the algorithm to get it to obey the two second rule.
For the overtaking, it would be possible to override like the all the other "assist" options. However, the fact that it needed to be consciously overriden would at least make a few people think twice before sitting in the wrong lane. I am thinking regular need to override as well.
I am assuming as well that blind spot assist is on (that is a very nice feature)
I do like blind spot assist, yes. My car doesn't have it, but it is nice to have as an addition to turning your head (not instead of it!)
== Doublepost prevention - post automatically merged: ==
FWIW an automatic move left feature could be quite dangerous if someone is trying to pass on the left at speed, a lazy act which is encouraged by adaptive cruise control. It is most annoying when you are overtaking someone, they pull back in and before you have chance to execute the correct checks, indicate and move left (NEVER move at the same time as them as it removes their ability to abort the manoeuvre if something happens) some idiot in a premium German car (for it always is) shoots past 20mph over the limit, followed by several more which make getting back over difficult.
I'm sure it'll get there eventually, and in some cars the tech may now be good enough to use it in heavy rain etc.