A digital tool provides drivers with estimated costs for using the Interstate 66 Express Lanes inside the Beltway. This typically involves inputting an entry and exit point along the corridor, sometimes including the time of day and number of occupants in the vehicle, to receive a calculated toll estimate. An example might involve a driver planning a trip between Gainesville and the Rosslyn exit during the morning rush hour, using the tool to determine the expected cost.
Access to this type of resource offers several advantages. Primarily, it enables informed decision-making about route planning and budgeting for transportation expenses. By understanding the potential tolls in advance, travelers can compare costs with alternative routes or modes of transportation. Historically, implementing express lanes on I-66 aimed to alleviate congestion and provide a reliable travel time option. Understanding toll pricing is critical for drivers to evaluate the trade-off between cost and time saved.