Quiet Zones are sections of rail line that contains one or more consecutive public crossings at which locomotive horns are not routinely sounded. Quiet Zones fall under Federal jurisdiction.

In 2015, the Village of South Holland successfully acquired approval for Quiet Zone designation at four at-grade railroad crossings:

• 170th Street, east of the South Holland Community Center
• South Park Avenue, north of 168th Street
• 162nd Street (Route 6), west of Van Drunen Road
• Vincennes Avenue, north of 162nd Street

Following approval, South Holland Public Works completed the installation of new delineators and signage at certain crossings, resulting in official approval to activate the four Quiet Zones.