Abstract
Natural rainwater-recirculation has been damaged irresistibly through application of conventional urban drainage systems.If on-site infiltration /storage facilities could be collectively introduced for urban drainage areas, the recirculation is to be likely rehabilitated. For the task, public-private partnership (PPP) should be established, since introduction of the on-site facilities is firstly dependent on cooperation of private secters.
The author herein proposes that intermediate system aided by Housing and Urban Development Corporation (HUDC) is effective and/or necessary for promotion of such scheme in the following of widely-applied run-off control measures by HUDC for urbanized river basins, conceptually which is contributed by private sectors.
