[rcooled]

In my opinion, merging is, by far, the least-developed driving skill. I often see cars meandering down an on-ramp around 40MPH, then try pushing their way into 65-70MPH freeway traffic, making cars in the right-hand lane slow down to let them in. The other lanes then seem to slow down in sympathy. This is why there's often backed-up traffic around highway on-ramps. Why are people so afraid to step on the gas and match their speed to the traffic flow?

Construction zones cause the same problem. Everyone has to slow down to see what's happening, even though all lanes are clear and construction is well out of the way.

And when there is a lane closure for construction or an accident, why do we need to creep by the incident at 12MPH. OK, we're all in a single lane now, let's get moving!