Originally Posted by genec
I question your logic based on other radical theories you have posted, such as your DCLLB or what ever it was.
I also question your logic based on your dichromatic views.
I further question your logic based on the fact that you have agreed that some BL have utility and yet you wish to elminate all BL past, present, and future, without knowing what the future can bring.
These are
ad hominem attacks and
non sequitor points that do not even address the argument I presented in #658. So, I'm ignoring them.
I question your logic based on the premises you present: point 1. Any vehicle, as demonstrated, by the lack of lane lines in the example presented by noisebeam, will track a more predictable track when lane lines are present.
I do not dispute that
in general lane lines help vehicle drivers track. My premise simply states that because of this,
motorists (like you) assume that cyclists are more predictable because of a painted stripe.. You're not disputing this, are you?
Point 3... cyclist will swerve whether in a BL or not.... swerving in a WOL can be just as dangerous as in a BL.
I don't get your point. My Point 3 is that whether a cyclist swerves is independent of whether there is a BL stripe or not. Whether it's more or less
dangerous is a separate part of the argument. The point here is swerving is just as
likely whether in a BL or WOL (and, if anything, perhaps more likely in a BL because of the longer half-life of debris in BLs). You said nothing that indicates you disagree that a cyclist swerving is at least as likely when in a BL as in WOL.
And point 4, there is no safety margin in a WOL... none what so ever... it is up to the motorist to determine any safety margin, thus a safety margin can and will be highly variable as determined by the mood, conditions, and traffic that said motorist encounters.
By the same token, there is also "no safety margin with a BL... none whatsoever... it is up to the motorist to determine any safety margin, thus a safety margin can and will be highly variable as determined by the mood, conditions, and traffic that said motorist encounters".
So the issues comes down to the role of the stripe, or its absence, in the "conditions" that determine the variable safety margin.
In particular, does the stripe tend to cause the average passing safety margin, as measured by speed differential and passing distance, to increase or decrease?
It is logical to conclude that because
motorists assume that cyclists are more predictable because of a painted stripe (a point you do not dispute), they are less concerned about the safety margin than when there is no stripe. Because they are less concerned about the safety margin when there is a stripe, they are less likely to adjust their driving (speed, lane position) to increase the safety margin. Therefore, the average passing safety margin (as measured by speed differential and passing distance) tends to be lower when a cyclist is riding in a bike lane then when riding in a WOL.