# The A4 Trunk Road (Great West Road, Hounslow) (Prescribed Routes) Order 1987, Article 4


Save as provided in article 7 below, every person causing any vehicle proceeding in the eastbound carriageway of Great West Road to enter the gap in the central reservation, for the purpose of making a U-turn so as to proceed in the opposite direction to that in which it was proceeding, shall cause that vehicle to proceed through the said gap, cross the westbound carriageway of Great West Road and then enter the U-turn facility.

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Source: https://www.legislation.gov.uk/uksi/1987/1432/article/4 (the official version)
Page: https://openlegislation.uk/a4-trunk-road-great-west-road-hounslow-prescribed-routes-order-1987/article-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.