What is O'Hare's speed limit, unless posted otherwise?

The speed limit at O'Hare International Airport, unless otherwise posted, is 30 mph. This limit is established for the safety of all airport operations, as many vehicles, including airport personnel and service vehicles, are continuously moving throughout the area. Maintaining a speed of 30 mph helps ensure that drivers can react appropriately to any sudden changes or hazards, which is particularly important in an environment with a high volume of pedestrian and vehicle traffic.

In relation to the other speed options, they may apply in different contexts or locations, but 30 mph is the specific standard limit at O'Hare. Understanding the designated speed limit is crucial for drivers to follow regulations and to ensure everyone's safety on airport grounds.