Trucks or Buses Left Lane Only. Does that mean me?

Another common reason for directing heavy vehicles like trucks and buses specially on interstate highways to specific lanes is the wear and tear of the road surface, by switching or alternating heavy traffic the road last a lot longer before repairs are needed, If you ever travel on I-30 or I-40 East or West you will see this on different areas depending on the road conditions its almost like seasonal, common in other areas just as well.
Happy and safe Rving