In 1996, the Transport Data Centre, now called the Transport and Population Data Centre (TPDC), commenced the Commercial Transport Study (CTS), a project with the ambitious aim of producing small-area estimates of trips by rigid and articulated trucks (heavy vehicles) and light commercial vehicles (LCVs) in the Sydney Greater Metropolitan Area (GMA). These estimates would supplement the existing estimates on personal travel to give a complete picture of vehicle movements in the GMA. After many years of developing and testing an estimation procedure, TPDC has now produced data for 1996 and 2002 and is in the process of further enhancing the methodology as a result of a review of the initial sets of estimates. This paper discusses how the CTS has evolved since its inception in 1996, the challenges it faced to produce the first set of estimates, and the subsequent and proposed enhancements to the estimation procedure to address some of the issues noted in the initial sets of estimates. (a) For the covering entry of this conference, please see ITRD abstract no. E213716.
Samenvatting