Panel Discussion

May 20, 2008 - The impediments to successful implementation of overload enforcement using high- speed WIM will be reviewed. There is recent progress with ...
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Panel Discussion N°2 (WIM) The Use of Weigh-in-Motion for Overload Enforcement and Infrastructure Protection Tuesday, May 20, 2008, 17:05-18:15

Panelists: Eugene O’Brien (UCD, IE, ISWIM chair), Morris de Beer (CSIR, SA), Chia-pei Chou (NTU, TW), Mark Gardner (Fulgro, USA), Bernard Jacob (LCPC, FR), Chris Koniditsiotis (ARRB, AUS), Hans Van Loo (Kalibra, NL), Ales Znidaric (ZG, SI), and representatives of Kistler and Sterela.

In the past 20 years the accuracy and durability of WIM systems have improved considerably. At the same time, automatic enforcement of speed limits has been implemented in many countries and the concept of automatic enforcement of illegal behaviour is gaining acceptance. We are now at a point where automatic enforcement of overloaded trucks using WIM sensors is coming back on the agenda, while automatic overload screening WIM networks are developed in several countries, and low-speed systems for enforcement more and more used. As well as keeping a fair competition between transport modes and road transport companies, improving road safety, compliant trucks are considerably less damaging to road pavements and reduce the risk of bridge overloading. The panel and the audience will review the current status of WIM for overload screening and enforcement, including low-speed WIM, pre-selection using high-speed WIM and video, company visits and other strategies, and infrastructure protection world wide. The impediments to successful implementation of overload enforcement using highspeed WIM will be reviewed. There is recent progress with the CEN (European Standardization Committee) on the development of a comprehensive European WIM standard, and with the support of the new International Society for WIM (ISWIM), a future ISO international standard on WIM may be expected. Other technological issues such as accuracy, reliability and quality assurance of data will also be discussed.