A line dataset representing estimated pavement (footway) width across the City of London. Each line contains a numeric value indicating the width of the pavement at that location. Width values are derived from pavement polygon geometries or road‑edge‑to‑building‑line measurements and are assigned to a uniform grid for spatial analysis. The dataset is based on Ordnance Survey base mapping, which may not reflect recent highway or public realm changes, temporary works, newly installed infrastructure, or schemes implemented after the date of the OS data extract. As a result, pavement widths may be outdated in areas where changes have occurred.