Author(s)

D.R. Morris

Abstract

A new aluminium gantry has been designed by Brown & Root and a prototype commissioned and built by Advanced Aluminium Solutions Ltd. The gantry exploits the structural design advantages offered by extrusions. A system of components connected using alloy pin and collar fasteners is suitable for manual handling, and facilitates rapid assembly. The gantry is light enough to allow the pre-installation of signal equipment on the superstructure prior to lifting the entire span to its permanent location. 1 Introduction The problems of an overloaded highways network in the UK are well known. More and more traffic is competing for the same road space. When the roads network is substantially complete, and there is little scope for easing traffic congestion by building new roads, it is important to address the issue of managing the traffic on the system better. The essential requirement

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