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Road safety

Contact Us - Traffic and Highway Services

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Please find information on general Island speed limits including vehicle type speed limitations and on traffic signs & road markings. You can also find details on the latest traffic calming measures being proposed


Please find below details of proposed changes to the Longfrie Filter and the published regulations in relation to speed limit changes.

  • Speed Limit Changes

    • New 25mph speed limits come into effect this Sunday 7th April 2019. This means that there will be 25mph speed limit zones in place that broadly cover all Local Centres and Main Centre Outer Areas, as identified in the Island Development Plan. In addition, there will be a new 25mph zone in the vicinity of Blanchelande College.
    • The aim of the reduced speed limits is to help improve road safety, particularly for people that travel by foot and cycle.
    • Please find an Island speed limit map here.
    • Further information on Island speed limits can be found below.
  • The Road Traffic (Road Humps) Law, 1983 - Proposed changes to the Longfrie Filter

    • The Committee for the Environment & Infrastructure hereby gives notice that it proposes to install a road hump (in the form of a raised table) across the public highway at the junction of Route du Longfrie and Route de Lihou, St Pierre du Bois.  The filter-in-turn which is currently in place would be re-marked on the table.
    • The table will be 16m in length running from south-east to north-west along Route du Longfrie and the width of the table from Route de Lihou to Rue St Pierre will be 17m.  The table will be a maximum of 75mm in height, with ramps on all roads leading to the junction of 1m in length.  All measurements are approximate.
    • A plan of the proposals is available here: pdf icon Longfrie Filter Plan [298kb]
    • Any person wishing to comment on the proposal should do so in writing to Traffic & Highway Services,  Bulwer Avenue, St Sampson, GY2 4LR, or by email to to arrive no later than Monday 31st December 2018
  • Traffic Signals

    • Many of the Island's major road junctions are controlled using traffic lights.  In addition, there are a number of puffin crossings to allow pedestrians to cross safely roads.
    • Occasionally damage or faults can occur.  Most commonly, this is bulbs not working or traffic lights being knocked by passing traffic.   However, there can also be issues with detection of vehicles which stops lights operating efficiently.
    • Should you notice any signal issues please contact Traffic and Highway Services on Tel. 243400 or by e-mailing
  • Traffic Signs and Road Markings

    • The Island is divided into signing zones. From time to time, permanent signs and poles become damaged and need repairing or replacing. Similarly, road markings are repainted as required.
    • A rolling maintenance programme is in place to inspect and replace damaged and worn signs and road markings.
    • Whilst procedures are in place for contractors to notify us if signs or lines require attention, Traffic and Highway Services welcome notification from the public if signage or road markings are in need of repair or replacement.
  • Speed Limit

    • The Island currently has a maximum speed limit of 35mph. However, on the approaches to St Peter Port and other local centres a 25mph limit applies. Similarly, a 25mph limit applies at all times on the approaches to the Island's Primary and Secondary Schools.
    • There are exceptions to the general limits as follows:
      • An exception to this is around St Sampson's High School and along The Quay where a 20mph limit applies at all times.
      • Seasonal 25mph speed limits apply between 1st June & 30th September along Cobo Coast Road, Route de Rocquaine and Route de la Lague.
      • 12 and 15mph limits apply to a small number of town roads, primarily "Prohibited Streets" where access is only allowed by permit holders.
    • Road users should also be aware that there is a network of rural roads in 7 parishes known as "Ruette Tranquille" where there is a recommended speed limit of 15mph. Signs are installed at the entrance points to each of the routes and drivers are advised of the likelihood of encountering pedestrians, cyclists and horse riders
    • A map of Ruettes Tranquilles can be viewed here .
    • In addition to the geographical limits, motorists are advised that certain speed limits apply to particular categories of vehicle as follows:
    • Vehicle Speed Limits
      Steam boilers, tar boilers, concrete mixers, material spreaders and other trailers
      of any kind whatsoever with metal wheels
      8 mph
      Four-wheeled heavy trailers of the low loader type12mph
      Caravan homes, horse and cattle boxes & two-wheeled trailer of any kind whatsoever20 mph
      An omnibus25 mph
      A motor vehicle exceeding two tons unladen weight25 mph
      An articulated vehicle25 mph



Island Speed Limit Map as of 7th April Grandes Maisons Rd Toucan crossing Longfrie Raised Table Ruettes Tranquilles network Ruettes Tranquilles Criteria for Expansion of Network

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