Guernsey roadworks

Stats and hotspots

Where do the roadworks actually go, and who is doing them? Step through months, seasons or school terms, or pick your own dates. The heat map, counts, busiest promoters, most closed roads and the school calendar all follow the same period.

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Period -- Pick a period above.
Roadworks notices -- Unique notices active in this period, excluding No TM. A notice is one road and one traffic measure for one date range, so a single project can raise several; this is a higher figure than a count of projects, which is what the Roadworks tile on bailiwick.gg shows for today. Works that have since finished are included: they happened.
Road closures -- Notices marked as full road closures.
School calendar -- Term dates load with the period.
Road closed -- Length of road under closure notices in this period.
Typical closure -- Average length of a closure notice from start to end.
Longest closure -- The single closure notice covering the most road.
Busiest day -- Most notices active on one day.

Heat map

Brighter where the plotted notices overlap. Choose what each notice weighs, and narrow the map to one promoter or to road closures only.

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Behind this map

    Most closed roads

    The roads with the most closure notices in the selected period. Open the details to see the dates and stated reasons.

      Top promoters

      The organisations behind the most notices in the selected period. Open the details to see what each one has been doing, where and why.

        Activity through the period

        Notices active on each day of the period.

        Road closed by promoter

        Length of road under each organisation's closure notices in this period. Extents added together, so a road under two notices counts twice.

          Longest closures

          The closure notices covering the most road.

            Longest running works

            Notices of any type with the most days from start to end, whether or not all of those days fall in this period.

              Notices by type

              How the period's notices split by traffic measure, in the map's colours, with the road length under each.

                Parishes, per mile of road

                Each parish ranked by the share of its own road network under closure notices in this period, so a parish with few roads is neither flattered nor punished by its size. Parish road networks were measured from OpenStreetMap on 07/10/2026: every drivable public road, 456 km island wide, with service roads, tracks and paths left out.

                  School term dates

                  Guernsey terms differ from the UK. Rows that overlap the selected period are highlighted, so you can see whether the works land in term time or the holidays.

                  Pupil dates for States schools, from the States of Guernsey term dates page.

                  Who is responsible

                  Temporary road closures on Guernsey's public roads are coordinated and permitted by Traffic and Highway Services, part of the States of Guernsey Committee for the Environment & Infrastructure. The committee's President, the deputy politically accountable for this area, has been Deputy Adrian Gabriel since July 2025. Periods on this page before July 2025 predate his presidency. The individual works shown here are carried out by the promoters listed above, not by the committee.