jats:pWe used routinely collected traffic data to compare travel before (September 2019 and February 2020) and after (September 2020) restrictions on movement due to Covid-19 in Cambridge, UK. Segmented quasi-Poisson time-series analyses estimated the degree to which travel behaviour had returned to pre-lockdown levels by September 2020, controlling for seasonal trends using hours of sunlight, temperature, and precipitation. In most cases walking and cycling remained below pre-lockdown levels at follow-up. Motor vehicle use was similar to pre-lockdown conditions in many locations, except where roads were closed to motor vehicles to support social distancing and on roads approaching the railway station.</jats:p>