Triquet wrote:However, when there is heavy congestion and traffic grinds to a halt, the gaps close right up to a couple of feet, particularly in lane 1. How do you account for that? If people did leave decant gaps there would be a lane-changing circus.
Lane changing will happen whenever drivers think they can gain a car length.
However, I would expect that close following would be defined as something like 'within 1second separation, maintained for X seconds'.
How close, in time, do you think is acceptable for following in congested traffic? Serious Q.