Issue 9

The Land Transport Authority of Singapore (LTA) currently manages about 450 overhead pedestrian bridges and around 15 km of covered link ways. These facilities are part of LTA’s effort to provide greater convenience to commuters and to encourage more people to use public transport. In the planning, design, construction and maintenance of these facilities, LTA has, over the years, steadily introduced improvements to better meet the increasing demands of the society. This paper outlines some of LTA’s achievements in these aspects and discusses some of the further improvements for future developments. Fred Ka Wing Lee , PE(S), MHKIE, MICE, MIEAust, CEng Road Structure & Facilities Department, Land Transport Authority, Singapore Choon Yeang Ng , Civil Design Department, Land Transport Authority, Singapore

This paper aims to describe the role that testing of masonry has played in the development of Code of Practice guidance for the structural design of masonry structures. It focuses on design to resist compressive and lateral loading. It describes two projects briefly which have utilised testing to develop designs beyond the scope of the guidance in current Codes. The role of testing in supporting guidance in our Approved Document to the Building Regulations is explained as this cannot be done by calculation. The way in which testing can support a Code of Practice approach to the appraisal of existing structures is llustrated. Prof. G. J. Edgell, BSc, PhD, CEng, MICE, FBMS CERAM