MSMA training Ph 6012 710 2620

http://ift.tt/1MXX7sS Call 6012 710 2620 In 2000 the Department of Irrigation and Drainage Malaysia first published the stormwater drainage design standard known as the Urban Stormwater Management Manual or the Manual Saliran Mesra Alam Malaysia, MSMA. It is required by law for all engineers in Malaysia to build drainage system to comply with the requirements of MSMA. Eleven years after its first publication, DID has completely updated the first edition of MSMA (known as MSMA1) with the publication of the second edition (known as MSMA2). There are a lot of alterations in the second edition including the following (based on case studies carried out for Kuala Lumpur): The design rainfall has risen by up to 125% for ten out of the 14 storm stations in Kuala Lumpur. For commercial and city area, the design discharge using the Rational Method has risen by up to 130%. For a factory site in Kuala Lumpur the Site Storage Requirement for OSD has risen by up to 233%. The volume of a detention pond has risen by up to 130%. The differences between the first and the second editions of MSMA give rise to the hike in the values of the main design parameters below: 135 rainfall stations in Peninsular Malaysia with longer storm data. The storm intensities for most ARI's are higher. Compared to the first edition where it was divided into east and west coast of the Peninsula for the computation of the rainfall temporal pattern, Peninsular Malaysia is now divided into five regions. The different hydrograph peaks and shapes due to the differences in temporal patterns. Not influenced by rainfall durations and intensities, and whether a catchment is urban/rural in condition, the coefficient of runoff in the Rational Method is now set according to the types of landuse. Differences in the estimated peak discharge is the result . The differences in the rainfall intensites, temporal patterns and the loss model used all affected the Time-Area Method in the second editon. For Kuala Lumpur it is noticed that the rainfall intensities have increased and the rainfall temporal pattern is more peaky, thus giving rise to a more peaky discharge hydrograph. The Site Storage Requirement (SSR) based on the Approximate Swinburne Method in the second editon is higher than that using the Swinburne Method in the first edition. The approximate method in the second editon has caused an over estimation of the SSR's. The volume of a detention pond has risen using the second editon compared to the first edition because of the increase in the rainfall intensities, temporal patterns and the choice of loss rate. A software program Is developed to help engineers to perform the computations using both editions precisely and to allow comparison be made of their differences quickly, in view of the many differences in computational procedures between the first and second editions of MSMA. The tool is a urban drainage design software created for MSMA. Ir. Dr. Quek Keng Hong- a practising engineer in Malaysia is the programmer of the software. MSMAware also covers the East Malaysian state of Sarawak where more than a dozen rainfall stations and their temporal patterns are programmed into the software. MSMA TRAINING : 00:00:05 MSMA training 00:00:06 MSMA seminar 00:00:08 MSMA courses 00:00:09 culvert design software 00:00:11 culvert analysis program MSMA training Ph 6012 710 2620
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