Report No. : GEO Report No. 284

Report Title : The New Priority Ranking Systems for Man-made Slopes and Retaining Walls (2013), 176 p.

Author : P.F.K Cheng


This report documents the risk-based New Priority Ranking Systems (NPRS) which have been developed by the Geotechnical Engineering Office (GEO) to allow the ranking of both pre-1978 and post-1978 man-made slopes and retaining walls for priority attention under the Landslip Prevention and Mitigation Programme (LPMitP). The NPRS supersede the New Priority Classification Systems (NPCS), which were previously developed by the GEO for dealing with the high-risk old (i.e. pre-1978) man-made slope features under the 10-year (2000-2010) Extended Landslip Preventive Measures (LPM) Programme.

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