ABSTRACT
By recombining available traffic load data with local traffic measurements we aim to determine a more accurate traffic load model. The model we obtain should help verify more precisely which bridges and quay walls can still withstand current traffic loading and which need strengthening or replacing. The current assessment on structural safety of existing structures uses the national standards for traffic loads based on WIM-ROAD highway traffic measurements. WIM-ROAD is sub-optimal for urban environments because bumpy roads and traffic behaviour, e.g. proximity to traffic lights, can negatively impact measurement accuracy. Therefore, we investigate alternatives to get accurate and reliable measurements. We discuss combinations of sound-radar, advanced counting traffic hoses, ANPR cameras coupled to national vehicle databases and our own WIM-ROAD measurements within a semi-urban environment. We show the accuracy and reliability of these different measurement systems and the potential in coupling their measurements.
