Actually, if the wave is successfully removed average traffic speed should increase. In fact, the whole post is an argument about ways to improve average traffi

Actually, if the wave is successfully removed average traffic speed should increase. In fact, the whole post is an argument about ways to improve average traffic speeds. He basically advocates estimating how fast traffic is really going, and going at that speed. Instead of reaching a bottleneck quickly, you should slow down appropriately in advance so that you never have to actually stop. Note that you (and the people behind you) still get through the bottleneck at the same speed, so there is no cost to you (or them), just less braking and accelerating. For what it's worth, some freeway entrances near me (Melbourne, Australia) have traffic lights which rate-limit entry onto the freeway in peak hours. This is exactly the same as what this author is trying to do; by rate-limiting cars at entry, they're not actually slowing them down, since it increases average on-freeway speeds.