What vehicles are allowed to use depressed roadways?

The use of depressed roadways at O'Hare Airport is specifically regulated to ensure safety and efficiency in airport operations. The correct answer emphasizes that only certain types of vehicles are permitted on these roadways. Baggage vehicles, CDA (City of Chicago Department of Aviation) vehicles, and emergency vehicles are the primary users allowed on these roads due to their roles in airport operations, which include transporting luggage and supporting airport services and emergency responses.

Baggage vehicles are essential for handling passenger luggage, making them necessary for the smooth functioning of airline operations. CDA vehicles include airport maintenance and operational support vehicles that help manage and maintain airport facilities. Emergency vehicles are crucial for responding to any incidents or emergencies that may occur at the airport, ensuring safety for all passengers and staff.

By restricting access to these specific types of vehicles, the airport can minimize congestion on these roadways and enhance overall safety and efficiency for airport operations.