We have many threads about weather, winter time and summer. But this is an advisory for tractor trailer drivers traveling though Pennsylvania.
Restrictions on speed and right lane only during winter events. Fines up to $300.
Seems I-78 across Pennsy is always a nightmare in winter. Throw in I-81 and you'll see how bad travel in the winter can be.

PennDOT rolls out new truck restriction program
The Pennsylvania Department of Transportation (PennDOT) is looking ahead to winter weather and rolling out a pilot program that will restrict travel lanes for commercial vehicle drivers.
The new PennDOT program will restrict semi trucks to the right lane any time that the weather is bad enough to lower the speed limit to 45 m.p.h., according to local news outlet WNEP.
The new lane restriction for trucks will be put into place during the next winter weather event that results in a reduced speed limit.
Last winter, PennDOT issued multiple truck travel bans due to inclement weather that completely restricted commercial vehicle travel on certain roadways. During these truck bans, Pennsylvania troopers aggressively patrolled restricted roadways and handed out hundreds of $300 citations for violating the ban.