# The A1 Trunk Road (Islington) (Temporary Prohibition of Traffic) Order 1999, Article 4


(1) The provisions of article 3 above shall apply only during such times and to such extent as may from time to time be indicated by traffic signs specified by regulations or authorised under section 64 of the Road Traffic Regulation Act 1984.
(2) The provisions of article 3 do not apply in respect of:
(i) any vehicle being used for fire brigade, ambulance or police purpose, or
(ii) anything done with the permission or at the direction of a police constable in uniform or a traffic warden, or
(iii) a bus stopped at a bus stop for as long as may be required to enable passengers to board or alight, or
(iv) a bus stopped at a bus stop or a bus stand and being used for operational reasons in the course of providing a London bus service (as defined in section 34 of the Transport Act 1985 under an agreement with London Regional Transport or training drivers to allow such a service to be provided.
(3) In this article “operational reasons” means:
(a) to enable passengers to board and alight;
(b) to enable crew changes to take place;
(c) to maintain the scheduled timetable subject, in the case of a bus stop, to a maximum wait of two minutes.

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Source: https://www.legislation.gov.uk/uksi/1999/1484/article/4 (the official version)
Page: https://openlegislation.uk/a1-trunk-road-islington-temporary-prohibition-of-traffic-order-1999/article-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.