{"data":{"kind":"webtris_hourly","labels":["00:00","01:00","02:00","03:00","04:00","05:00","06:00","07:00","08:00","09:00","10:00","11:00","12:00","13:00","14:00","15:00","16:00","17:00","18:00","19:00","20:00","21:00","22:00","23:00"],"series":[{"label":"M1 southbound between J31 and J32, vehicles per hour on Mon 29 Jun","data":[550,406,507,753,1399,3044,4544,4956,4638,3921,4006,4341,4148,4333,4300,4459,4656,4302,3084,2127,1780,1233,851,659]}],"unit":"","style":"line"},"meta":{"generated":"2026-09-15T22:40:13+00:00","count":1,"unit":"","style":"line","provider":"roads","licence":{"name":"Open Government Licence v3.0 (National Highways and DfT)","url":"https:\/\/www.nationalarchives.gov.uk\/doc\/open-government-licence\/version\/3\/"},"attribution":"Contains National Highways WebTRIS data, Open Government Licence v3.0. Contains Department for Transport road traffic statistics, Open Government Licence v3.0.","source_url":"https:\/\/webtris.nationalhighways.co.uk\/","citation_text":"Data from National Highways WebTRIS and DfT road traffic counts, Open Government Licence v3.0 (National Highways and DfT), via Sheffield Events (sheff.events), retrieved 2026-09-15","derived_licence":{"name":"CC BY 4.0","url":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/","note":"Sheffield Events' own derived figures (neighbourhood placement, counts, medians, correlations) are CC BY 4.0: credit Sheffield Events (sheff.events)."}},"sources":[{"key":"roads","name":"National Highways WebTRIS and DfT road traffic counts","url":"https:\/\/webtris.nationalhighways.co.uk\/","licence":"Open Government Licence v3.0 (National Highways and DfT)","licence_url":"https:\/\/www.nationalarchives.gov.uk\/doc\/open-government-licence\/version\/3\/","attribution":"Contains National Highways WebTRIS data, Open Government Licence v3.0. Contains Department for Transport road traffic statistics, Open Government Licence v3.0.","updated":"2026-09-15T04:15:10+00:00"}],"citation":{"title":"National Highways WebTRIS and DfT road traffic counts chart: webtris_hourly","url":"https:\/\/sheff.events\/api\/data\/roads\/chart\/webtris_hourly","site":"https:\/\/sheff.events\/","retrieved":"2026-09-15T22:40:13+00:00","licence_note":"Each source keeps its own licence; see sources[]. Sheffield Events editorial content is \u00a9 Sheffield Events."}}