HARRISBURG – PennDOT has temporarily reduced the speed limit on major roads in the south-central PA region encompassing Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon, Perry and York Counties. PennDOT is urging motorists to avoid unnecessary travel, but those who must head out will see speeds reduced to 45 mph on Interstates 81, 83 and 283 along with Routes 15, 30, 283, 322 and 581. The speed limit restrictions are in addition to vehicle restrictions implemented on Interstates 83 and 78. Interstate 83 in Cumberland, Dauphin, and York Counties, and Interstate 78 in Lebanon County are restricted under Tier 1 of the commonwealth’s weather event vehicle restriction plan, Although PennDOT crews will be treating roads, motorists should be alert for slippery conditions. PennDOT will continue to treat roadways until all roads are clear.