> Often I see “moving roadblocks”: clumps of cars going around or just under the speed limit jockeying around each other, impeding other traffic from moving around them.
Indeed - this is the 70mph is slower than 50mph thing I mention.
Not sure if we’re talking about the same thing. These slower drivers aren’t any safer: they’re weaving around each other and impeding faster traffic from passing. They’re arguably more dangerous because of that. And the flow of traffic is constrained to the speed they choose, which is on average slower than it otherwise would be.
Indeed - this is the 70mph is slower than 50mph thing I mention.