The 80, 90, 100 lanes argument (or even 90, 100, 110) argument is completely flawed; the vast majority of drivers drive at or around the speed limit, driving at what the laws determine are a reasonable speed. During average traffic levels, the system that gets the most people to their destination at a reasonable time is for the left two lanes to be used by this majority of drivers. Expecting this majority of traffic to pile into the middle lane and stay there while an outer lane is reserved for the 110+ crowd is simply inefficient and results in delays for everyone. Distributing this larger volume through the left two lanes will result in less congestion for drivers attempting to merge on and off, and reduce traffic at the on/off ramps, where the greatest potential for congestion lies. During off hours, yeah, stay right; but otherwise there's no reason for a hundred people to delay themselves just so a dozen can drive at their ideal speed.
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