TxDOT Roadbed Width

A roadbed is the foundation or surface of a road uninterrupted by a median or shoulder on which vehicles travel at normal speeds. A roadway can have a single roadbed or multiple roadbeds. A roadway with multiple roadbeds has some form of median between the roadbeds. Roadbed Width is the measurement, in feet, of the width of the surfaced portion of a physically separate roadbed. This portion consists of the through lanes, turn lanes, parking, and surfaced shoulders. Roadbed Width = Surface Width + Shoulder Width + Turn Lanes Update Frequency: 3 Months Source: Geospatial Roadway Inventory Database (GRID) Security Level: Public Owned by TxDOT: True Related Links Data Dictionary PDF [Generated 2025/04/24]