In the four years that Ayanna Chisholm has worked collecting tolls out of tiny glass booths at the Holland Tunnel and elsewhere in New Jersey, there have been several constants. There are familiar commuters, malfunctioning toll arms, occasional scofflaws — and an incessant barrage of come-ons, sexual comments, lecherous stares and crude gestures from male motorists.

Some of Ms. Chisholm’s colleagues say they have been subjected to drivers’ exposing themselves. The fusillade is especially menacing because it is inescapable, the workers confined to small hutches on the highway.

Like other women in her profession, Ms. Chisholm, who works for the Port Authority of New York and New Jersey, has learned to wear little makeup, crack her booth’s window open as little as possible, and drop change into waiting hands to avoid drivers who try to stroke her palm.

“They know I can’t physically go after them,” said Ms. Chisholm, 26, who is also a student at John Jay College of Criminal Justice. “This is work, and I deal with it outside of work when I’m walking in the street. To come to work and still have to deal with that, it’s troublesome.”