TfL Thames Screenline Counts
Actual traffic counts on every Thames road bridge, conducted by TfL every two years since 1986. Manual classified counts on weekdays in June or July, obtained via FOI.
The screenline counts every vehicle crossing each bridge on the count day. These are single-day manual counts, not annual averages, and exist for even years only.
Data last updated 1 December 2024 Source: TfL Thames Screenline (FOI 4078 2425)
Frequently asked questions
What's the difference between the DfT Count and the TfL Count?
DfT is the Annual Average Daily Flow estimated for one count point on each bridge approach. TfL (this chart) is a single-day manual count of vehicles crossing the bridge itself, done in even years. Values are not directly comparable; the screenline is typically 2 to 2.5 times the DfT AADF for the same bridge. Source: TfL Thames Screenline (FOI 4078 2425).
Linked charts
Traffic on the 5 west-London bridges, indexed to 2018
Annual motor traffic on the five western Thames road bridges, Hammersmith, Putney, Chiswick, Kew, and Wandsworth, indexed so that 2018 = 100.
Thames Bridges
Thames Bridge Traffic, 1986 to 2024
Annual motor traffic on every Thames road bridge from Hampton Court to Tower Bridge, combining TfL Thames Screenline counts with DfT AADF estimates.
Thames Bridges
DfT AADF Counts
DfT Annual Average Daily Flow for a count point on each Thames bridge approach, year by year from 2000.
Thames Bridges