Trucks Must Use Left Lane, reasoning behind this in contstuction?

some areas one lane is the shoulder and does not have the base for heavy vehicles, so they put us on the other side.
In others it's to put us away from the merge lane on narrow lanes.

 

Most of the time the shoulder is not made to hold the weight of trucks on a daily basis use. When construction needs to use the shoulder as a travel lane, it's best to keep the trucks off it.
Also, sometimes it's because the right lane is skinner for lack of room.

 

Sometimes the left lane is wider. Sometimes the right lane is what was previously the shoulder, so it can't support heavy truck traffic for weeks on end...

 

lol, half the drivers either can't read the signs or ignore them.
I'm in Charlotte also.

 

Keeps the right lane open for construction vehicles to enter and exit the highway from the work zones. On some roads the overpasses are arched and there is significantly less clearance the closer you are to the right shoulder.

 

I just want to know why they put those signs right by signs that say 'slower traffic keep right'. It's confusing.

 

Most of the times it's because of a "shoulder drop off"...

 

Some construction workers are former mega drivers so they want to other mega drivers that left lane feeling without getting a ticket