The
geographic coverage of TCI's traffic data is for
the entire United States . Based on the raw
traffic data from counters and detectors installed
by public and private transportation agencies
across the U.S. and third parties' GPS-based
historical traffic data, the historical traffic
flow data are available for 450,000 miles of major
roads, including all Interstate Highways, U.S.
Highways, State Highways, major arterials, and
some minor arterials.
