As gps maps show you the speed zone you are in (sometimes incorrect), the time is most likely near that it will interface with the truck computer to govern the engine and not allow it to exceed the speed limit. Now that won’t take into account weather conditions.
Electronic logs systems already alert company safety departments of drivers going more than 10 mph over a posted speed, so modern means are starting to regulate fast drivers. I don’t know if on-the-go de-rating of speed limit and/or hp is now available. But I know that the company my truck is leased to will have the shop set the speed for no more than 65 if the driver gets a speeding ticket.
The pay issue is partly supply and demand. Also, truck driving jobs vary greatly. A driver decides that he has had enough of seeing the country via long haul (gone from home sometimes for one or more weeks), and chooses regional (gone a week or less), or maybe local (usually home daily).
Many want a switch in the type of trucking work. The variety driving jobs can be minimal effort outside of driving (dry van, refrigerated van), to more physically demanding specialized (chains, straps, tarps). Construction driving (dirt, rock, concrete, asphalt, demolition, etc.) can be quite physical as well, and is almost always local. (I worked as a driver for one construction company that occasionally took on distant jobs that required hotel stays).
Electronic logs systems already alert company safety departments of drivers going more than 10 mph over a posted speed, so modern means are starting to regulate fast drivers”””
Nevada changed speed limits on I-80 to 80 in SOME sections. Then What??