Although the use of Prefabricated Vertical Drain (PVD) in soil
improvement is not new, this paper is interesting since it gives the full spectrum from
preliminary design stage; trial embankment and pilot test to final soil improvement. The final
installation of the PVD was based on the soil investigation report and the results of
instrumentation monitoring. Finally, using back analysis, vertical and horizontal coefficients of
consolidation and compression index can be determined, which can be applied to predict a more
accurate prediction of settlement.