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 | 1979: F. Moses develops bridge
WIM concept of using bridges as scales to weigh trucks in motion as an
alternative to more established pavement WIM systems. |
| 1986: A similar system using
culverts is developed in Australia where there are today around 170
such systems in operation. |
| 1990's: new prototype versions
of Bridge WIM (B-WIM) systems were developed independently in Slovenia
and in Ireland. |
| 1994 to 1999: bridge WIM
methodology is considerably upgraded in the COST 323 action
and in the EC 4th Framework project WAVE,
resulting in: |
| increased accuracy of results, |
| extended applicability to a wide range of bridge types, such as short concrete slabs, box culverts, integral construction, long-span bridges,
including box girders and orthotropic decks, |
| FAD (Free of Axle Detector), a B-WIM concept
that requires no axle detectors on the road surface, |
| SiWIM, a prototype of a new generation bridge WIM system developed by ZAG. |
Main bridge WIM related research in WAVE is done by ZAG (Slovenia), TCD (Ireland), LCPC (France) and TUM (Germany).
| 1999: Cooperation between ZAG
and Cestel initiated to
commercialise the SiWIM prototype. |
| 2000-2003: SiWIM
hardware and software completely redesigned. |
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2003: first successful real time FAD measurements on a 6-m long bridge and on a 500-m long orthotropic deck bridge. |
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2005: successfully finished over 300 measurements all over the world. |
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2006: Camera was implemented in measurement for preselection together with palm top computer. |
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