Colorado is following in the footsteps of California. Be very careful folks.
The idea that express roll lanes cut traffic congestion is nonsense. All it does is take a lane away from traffic. Same with HOV or diamond lanes. Don’t believe it....take a look at traffic in the Bay Area or LA
On I-495, they added two express lanes in each direction between Tyson’s Corner and Springfield, VA. The number of free lanes stayed the same.
On the other hand, plans are to take one lane in each direction on a crowded major bridge in the Tampa area and convert it into an express lane, so your assertion is true for some areas.