Virginia State Police on Monday will begin cracking down on parking scofflaws at the state’s biggest commuter lot, putting additional pressure on drivers desperate to find a place to leave their car so they can board a bus or grab a slug line ride to work. The Horner Road lot, near Interstate 95 and the Prince William County Parkway, has 2,363 parking spaces that are usually filled by 6:50 a.m., forcing latecomers to park on the grass or along throughways that aren’t legal parking spaces.

State police left fliers last week notifying drivers they will start ticketing illegally parked cars Monday. It’s a matter of public safety, officials said.