design rainfall software Phone 6012-7102620

http://ift.tt/1NIkZgy Phone call 6012 710-2620 In 2000 the Department of Irrigation and Drainage Malaysia first released the stormwater drainage design procedure known as the Urban Stormwater Management Manual for Malaysia or the Manual Saliran Mesra Alam Malaysia, MSMA. Engineers in Malaysia are required legally to design drainage works to fullfil the requirements of MSMA. Eleven years after its first publication, DID has completely revised the first edition of MSMA (referred to as MSMA1) with the publication of the second edition (referred to as MSMA2). With reference to the case studies completed for Kuala Lumpur, there are numerous changes in the second edition including: The design rainfall has gone up by up to 126% for ten out of the fourteen storm stations in Kuala Lumpur. For commercial and city area, the design discharge using the Rational Method has gone up by up to 131%. The Site Storage Requirement for OSD for a factory site in Kuala Lumpur has gone up by up to 233%, The volume of a detention pond has gone up by up to 130%. The increase in the values of the main design parameters as described above can be due to the changes between the first and the second editions of MSMA as follows: 135 stations in Peninsular Malaysia with longer precipitation data. This gives rise to in higher storm intensities for certain durations and ARI's. Compared to previously where it was divided into east and west coast of the Peninsula for the determination of the rainfall temporal pattern, West Malaysia is now separated into 5 regions. The different hydrograph peaks and shapes caused by the changes in temporal patterns. The coefficient of runoff in the Rational Method is now established according to the types of landuse, and not affected by rainfall durations and intensities, and whether a catchment is urban/rural in condition. Differences in the estimated peak discharge is observed . The Time-Area Method in the second editon is affected by the changes in the rainfall intensites, temporal patterns and the loss model used. For Kuala Lumpur it is noted 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 MSMA1. MSMA2 used the approximate method based on a set of approximation tables and this has resulted in an over estimation of the Site Storage Requirements. The volume of a detention pond has gone up using the second editon compared to MSMA1 because of the increase in the rainfall intensities, temporal patterns and the selection of loss rate. In view of the many changes in computational procedures between the first and second editions of MSMA, a tool is developed to help engineers to carry out the computations using both editions precisely and to allow comparison be made of their changes speedily. The tool is a drainage design software created for MSMA. The software is created by Ir. Dr. Quek Keng Hong- a practising engineer in Malaysia. 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. DESIGN RAINFALL SOFTWARE : 00:00:05 design rainfall software 00:00:06 drainage design software 00:00:08 Manual Saliran Mesra Alam Malaysia 00:00:10 Urban Stormwater Management Manual for Malaysia 00:00:12 Urban Stormwater Management Manual software https://www.youtube.com/watch?v=uTg8HxPhzSc design rainfall software Phone 6012-7102620
Click here for more info...

design storm software Call 6012-710-2620

http://ift.tt/1MSLe3T Phone call 6012 710-2620 In 2000 the Department of Irrigation and Drainage Malaysia first released the urban drainage design standard known as the Urban Stormwater Management Manual for Malaysia or the Manual Saliran Mesra Alam Malaysia, MSMA. Fullfilment of the requirements of MSMA when building drainage works is required legally of all engineers in Malaysia. Eleven years after its first publication, DID has completely updated the first edition of MSMA (also known as MSMA1) with the publishing of the second edition (also known as MSMA2). There are many differences in the second edition include (based on case studies done for Kuala Lumpur): Ten out of the fourteen storm stations in Kuala Lumpur have its design storm risen by up to 126%. The design flow using the Rational Method has risen by up to 131% for commercial and city area. The Site Storage Requirement for OSD for a factory lot in Kuala Lumpur has risen by up to 233%, Detention pond has risen by up to 130% in the volume. The differences between the first and the second editions of MSMA give rise to the hike in the values of the main design parameters as follows: 135 rainfall stations in Peninsular Malaysia with longer storm data. This gives rise to in higher storm intensities for certain durations and ARI's. Peninsular Malaysia is now grouped into five regions for the computation of the rainfall temporal pattern, compared to previously where it was divided into east and west coast of the Peninsula. The dissimilar hydrograph peaks and shapes caused by the differences in temporal patterns. The coefficient of runoff in the Rational Method is now determined according to the types of landuse, and not affected by storm durations and intensities, and whether a catchment is urban/rural in condition. This resulted in differences in the estimated peak flow. The Time-Area Method in MSMA2 is affected by the differences in the storm intensites, temporal patterns and the loss model used. The storm intensities for Kuala Lumpur have increased and the rainfall temporal pattern is more peaky, resulting in a more peaky flow hydrograph. The Approximate Swinburne Method in MSMA2 resulted in higher Site Storage Requirement (SSR) than the Swinburne Method in the first edition. MSMA2 used the approximate method based on a set of approximation tables and this has resulted in an over estimation of the Site Storage Requirements. Compared to the first edition, the increase in the storm intensities, temporal patterns and the selection of loss rate have given rise to a rise in the volume of a detention pond using the second edition. In view of the many differences in computational procedures between the first and second editions of MSMA, a tool is developed to help engineers to perform the computations using both editions precisely and to allow comparison be made of their differences quickly. The tool is a drainage design software designed for MSMA. The software is created by Ir. Dr. Quek Keng Hong- a professonal engineer in Malaysia. MSMAware also covers the East Malaysian state of Sarawak where more than a dozen storm stations and their temporal patterns are included into the software. DESIGN STORM SOFTWARE : 00:00:05 design storm software 00:00:06 design rainfall software 00:00:08 drainage design software 00:00:10 Manual Saliran Mesra Alam Malaysia 00:00:11 Urban Stormwater Management Manual for Malaysia design storm software Call 6012-710-2620
Click here for more info...

design storm software Call 6012-710-2620

design storm software Call 6012-710-2620

http://msmaware.com/blog/msma-software/
Ph 6012 710 2620

In 2000 the Department of Irrigation and Drainage Malaysia first printed the stormwater drainage design guideline known as the Urban Stormwater Management Manual or the Manual Saliran Mesra Alam Malaysia, MSMA. It is mandatory for all engineers in Malaysia to build drainage works to comply with the requirements of MSMA. More than ten years after its first publication, DID has completely amended the first edition of MSMA (referred to as MSMA1) with the release of the second edition (referred to as MSMA2). There are many differences in the second edition including (taken from case studies done for Kuala Lumpur):

10 out of the 14 storm stations in Kuala Lumpur have its design rainfall risen by up to 124%.
The design discharge using the Rational Method has risen by up to 131% for commercial and city area.
The Site Storage Requirement for On-Site Detention for a factory lot in Kuala Lumpur has risen by up to 233%,
The volume of a detention pond has risen by up to 128%.

The differences between the first and the second editions of MSMA give rise to the rise in the values of the main design parameters as follows:

135 stations in Peninsular Malaysia with longer precipitation data. This results in higher storm intensities for certain durations and ARI's.

Peninsular Malaysia is now divided into five regions for the determination of the temporal pattern, compared to the first edition where it was divided into east and west coast of the Peninsula. The differences in temporal patterns give rise to different hydrograph peaks and shapes.

Not dependent on rainfall durations and intensities, and whether a catchment is urban/rural in condition, the coefficient of runoff in the Rational Method is now established according to the types of landuse. Differences in the estimated peak discharge is observed .

The differences in the rainfall intensites, temporal patterns and the loss model used all affected the Time-Area Method in MSMA2. The rainfall intensities for Kuala Lumpur have increased and the temporal pattern is more peaky, giving rise to a more peaky discharge hydrograph.

The Site Storage Requirement (SSR) based on the Approximate Swinburne Method in MSMA2 is higher than that using the Swinburne Method in the first edition. MSMA2 used the approximate method based on a set of approximation tables and this has resulted in an over estimation of the SSR's.

Compared to the first edition, the increase in the rainfall intensities, temporal patterns and the selection of loss rate have caused a rise in the volume of a detention pond using MSMA2.

In view of the many differences in computational methods between the first and second editions of MSMA, a tool is developed to help engineers to perform the computations using both editions accurately and to allow comparison be made of their differences speedily. A urban drainage design software has been 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 included into the software.





design storm software Call 6012-710-2620








https://www.youtube.com/watch?v=uTg8HxPhzSc

detention basin software Ph 6012)-7102620

http://ift.tt/1NIkZgy Call 6012-710-2620 The urban drainage design standard first released by the Department of Irrigation and Drainage Malaysia in 2000 is the Urban Stormwater Management Manual or the Manual Saliran Mesra Alam (or MSMA). Engineers in Malaysia are required legally to build drainage works to fullfil the requirements of MSMA. More than ten years after its first publication, DID has completely revised the first edition of MSMA (or MSMA1) with the release of the second edition (or MSMA2). Based on the case studies carried out for Kuala Lumpur, there are many alterations in the second edition including: 10 out of the fourteen rainfall stations in Kuala Lumpur have its design storm increased by up to 125%. For commercial and city area, the design flow using the Rational Method has increased by up to 130%. For a factory lot in Kuala Lumpur the Site Storage Requirement for OSD has increased by up to 235%. The volume of a detention pond has increased by up to 130%. The changes between the first and the second editions of MSMA resulted the increase in the magnitudes of the main design parameters as follows: 135 stations in Peninsular Malaysia with longer storm data. This gives rise to in higher rainfall intensities for certain durations and Average Recurrence Intervals. Compared to previously where it was divided into east and west coast of the Peninsula for the computation of the temporal pattern, Peninsular Malaysia is now divided into five regions. The changes in temporal patterns give rise to dissimilar hydrograph peaks and shapes. The coefficient of runoff in the Rational Method is now established according to the types of landuse, and not influenced by storm durations and intensities, and whether a catchment is urban/rural in condition. This gives rise to changes in the estimated peak flow. The Time-Area Method in MSMA2 is affected by the changes in the storm intensites, temporal patterns and the loss model used. The storm intensities for Kuala Lumpur have increased and the temporal pattern is more peaky, resulting in a more peaky flow hydrograph. The Site Storage Requirement (SSR) based on the Approximate Swinburne Method in MSMA2 is higher than that using the Swinburne Method in MSMA1. The approximate method in MSMA2 has given rise to an over estimation of the Site Storage Requirements. The volume of a detention pond has increased using MSMA2 compared to MSMA1 because of the increase in the storm intensities, temporal patterns and the choice of loss rate. In view of the many changes in computational methods between the first and second editions of MSMA, a tool is developed to help engineers to perform the computations using both editions accurately and to allow comparison be made of their changes quickly. A stormwater design software has been designed for MSMA. The software is written by Ir. Dr. Quek Keng Hong- a professonal engineer in Malaysia. MSMAware also covers the East Malaysian state of Sarawak where more than a dozen storm stations and their temporal patterns are included into the software. DETENTION BASIN SOFTWARE : 00:00:05 detention basin software 00:00:06 design storm software 00:00:08 design rainfall software 00:00:10 drainage design software 00:00:12 Manual Saliran Mesra Alam Malaysia detention basin software Ph (6012)-7102620
Click here for more info...

detention pond software Phone 6012-710-2620

http://ift.tt/1MSLe3T Telephone call 6012 710 2620 The stormwater drainage design standard first issued by the Department of Irrigation and Drainage Malaysia in 2000 is the Urban Stormwater Management Manual for Malaysia or the Manual Saliran Mesra Alam (referred to as MSMA). It is mandatory for all engineers in Malaysia to design drainage system to comply with the requirements of MSMA. The Department of Irrigation and Drainage has completely updated the first edition of MSMA (referred to as MSMA1) with the publishing of the second edition (also known as MSMA2) about 11 years after its first edition. There are a lot of alterations in the second edition include (based on case studies done for Kuala Lumpur): The design storm has increased by up to 125% for 10 out of the fourteen rainfall stations in Kuala Lumpur. The design discharge using the Rational Method has increased by up to 131% for commercial and city area. For a factory site in Kuala Lumpur the Site Storage Requirement for On-Site Detention has increased by up to 233%. The storage volume of a detention pond has increased by up to 128%. The hike in the magnitudes of the main design parameters as described above can be attributed to the changes between the first and the second editions of MSMA as follows: 135 rainfall stations in Peninsular Malaysia with longer precipitation data. This gives rise to in higher rainfall intensities for certain durations and ARI's. Compared to the first edition where it was divided into east and west coast of the Peninsula for the derivation of the storm temporal pattern, West Malaysia is now grouped into five regions. The changes in temporal patterns give rise to different hydrograph peaks and shapes. The coefficient of runoff in the Rational Method is now set according to the types of landuse, and not influenced by storm durations and intensities, and whether a catchment is urban/rural in condition. This gives rise to changes in the estimated peak discharge. The changes in the storm intensites, temporal patterns and the loss model used all influenced the Time-Area Method in MSMA2. The storm intensities for Kuala Lumpur have increased and the storm temporal pattern is more peaky, resulting in a more peaky discharge hydrograph. The Approximate Swinburne Method in MSMA2 gives higher Site Storage Requirement (SSR) than the Swinburne Method in the first edition. MSMA2 used the approximate method based on a set of approximation tables and this has resulted in an over estimation of the SSR's. The storage volume of a detention pond has increased using MSMA2 compared to the first edition because of the rise in the storm intensities, temporal patterns and the choice of loss rate. In view of the many changes in computational procedures between the first and second editions of MSMA, a tool is developed to help engineers to perform the computations using both editions precisely and to allow comparison be made of their changes speedily. The tool is a stormwater design software created for MSMA. The software is created by Ir. Dr. Quek Keng Hong- a professonal engineer in Malaysia. MSMAware also covers the East Malaysian state of Sarawak where more than a dozen storm stations and their temporal patterns are programmed into the software. DETENTION POND SOFTWARE : 00:00:05 detention pond software 00:00:07 detention basin software 00:00:09 design storm software 00:00:11 design rainfall software 00:00:13 drainage design software detention pond software Phone 6012-710-2620
Click here for more info...

OSD software Call 6012-710-2620

http://ift.tt/1PFJNLZ Tel Call (6012)-7102620 The stormwater drainage design standard first issued by the Department of Irrigation and Drainage Malaysia in 2000 is the Urban Stormwater Management Manual for Malaysia or the Manual Saliran Mesra Alam (known as MSMA). It is mandatory for all engineers in Malaysia to build drainage system to fullfil the requirements of MSMA. Eleven years after its first publication, DID has completely amended the first edition of MSMA (known as MSMA1) with the publishing of the second edition (known as MSMA2). There are a lot of alterations in the second edition include (taken from case studies done for Kuala Lumpur): For Kuala Lumpur it was found that the design storm has gone up by up to 126% for ten out of the 14 storm stations. The design discharge using the Rational Method has gone up by up to 130% for commercial and city area. The Site Storage Requirement for On-Site Detention for a factory lot in Kuala Lumpur has gone up by up to 235%, Detention pond has gone up by up to 128% in the storage volume. The increase in the magnitudes of the main design parameters as described above can be attributed to the differences between the first and the second editions of MSMA as follows: 135 stations in Peninsular Malaysia with longer rainfall record. The storm intensities for most ARI's have increased. Compared to the first edition where it was divided into east and west coast of the Peninsula for the derivation of the storm temporal pattern, Peninsular Malaysia is now grouped into five regions. The dissimilar hydrograph peaks and shapes due to the differences in temporal patterns. Not affected by storm durations and intensities, and whether a catchment is urban/rural in condition, the coefficient of runoff in the Rational Method is now determined according to the types of landuse. This resulted in differences in the estimated peak discharge. The Time-Area Method in MSMA2 is affected by the differences in the storm intensites, temporal patterns and the loss model used. The storm intensities for Kuala Lumpur have increased and the storm temporal pattern is more peaky, giving rise to a more peaky discharge hydrograph. The Site Storage Requirement (SSR) based on the Approximate Swinburne Method in MSMA2 is higher than that using the Swinburne Method in MSMA1. The approximate method in MSMA2 has given rise to an over estimation of the SSR's. Compared to MSMA1, the increase in the storm intensities, temporal patterns and the selection of loss rate have resulted an increase in the storage volume of a detention pond using MSMA2. A software tool Is built to assist engineers to perform the computations using both editions accurately and to allow comparison be made of their differences speedily, due to the many differences in computational methods between the first and second editions of MSMA. A drainage design software has been created for MSMA. The software is created by Ir. Dr. Quek Keng Hong- a practising engineer in Malaysia. MSMAware also covers more than a dozen storm stations and their temporal patterns in the Sarawak. OSD SOFTWARE : 00:00:05 OSD software 00:00:06 detention pond software 00:00:08 detention basin software 00:00:10 design storm software 00:00:12 design rainfall software OSD software Call 6012-710-2620
Click here for more info...

MSMA seminar Phone 6012 710 2620

http://ift.tt/1IOhskY Tel Call 6012-7102620 Manual Saliran Mesra Alam (referred to as MSMA), or the Urban Stormwater Management Manual for Malaysia is the stormwater drainage design standard first released by the Department of Irrigation and Drainage Malaysia (D.I.D) in 2000. It is compulsory for all engineers in Malaysia to design drainage works to fullfil the requirements of MSMA. The Department of Irrigation and Drainage has completely revised the first edition of MSMA (also known as MSMA1) with the release of the second edition (known as MSMA2) about 11 years after its first edition. With reference to the case studies done for Kuala Lumpur, there are a lot of alterations in the second edition including the following: For Kuala Lumpur it was found that the design storm has gone up by up to 126% for ten out of the fourteen rainfall stations. The design discharge using the Rational Method has gone up by up to 129% for commercial and city area. For a factory site in Kuala Lumpur the Site Storage Requirement for OSD has gone up by up to 235%. Detention basin has gone up by up to 129% in the storage. The hike in the magnitudes of the main design parameters as outlined above can be due to the differences between the first and the second editions of MSMA as follows: Longer rainfall data covering 100 more stations in Peninsular Malaysia. The rainfall intensities for most ARI's are higher. West Malaysia is now grouped into 5 regions for the determination of the storm temporal pattern, compared to previously where it was divided into east and west coast of the Peninsula. The dissimilar hydrograph peaks and shapes caused by the differences in temporal patterns. The coefficient of runoff in the Rational Method is now fixed according to the types of landuse, and not dependent on storm durations and intensities, and whether a catchment is urban/rural in condition. Differences in the estimated peak discharge is observed . The Time-Area Method in MSMA2 is affected by the differences in the storm intensites, temporal patterns and the loss model used. The storm intensities for Kuala Lumpur have increased and the storm temporal pattern is more peaky, giving rise to a more peaky discharge hydrograph. The Site Storage Requirement (SSR) based on the Approximate Swinburne Method in MSMA2 is higher than that using the Swinburne Method in the first edition. The second editon used the approximate method based on a set of approximation tables and this has resulted in an over estimation of the Site Storage Requirements. The storage of a detention basin has gone up using MSMA2 compared to the first edition because of the increase in the storm intensities, temporal patterns and the choice of loss rate. In view of the many differences in computational methods between the first and second editions of MSMA, a tool is developed to help engineers to perform the computations using both editions accurately and to allow comparison be made of their differences speedily. A stormwater design software is developed for MSMA. The software is written by Ir. Dr. Quek Keng Hong- a professonal engineer in Malaysia. MSMAware also covers the East Malaysian state of Sarawak where more than a dozen storm stations and their temporal patterns are included into the software. MSMA SEMINAR : 00:00:05 MSMA seminar 00:00:06 MSMA courses 00:00:07 culvert design software 00:00:08 culvert analysis program 00:00:09 On-Site Detention Software MSMA seminar Phone 6012 710 2620
Click here for more info...

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
Click here for more info...

MSMA workshop Phone 6012-7102620

http://ift.tt/1IOhskY Telephone call 6012 710-2620 Manual Saliran Mesra Alam (or MSMA), also known as the Urban Stormwater Management Manual for Malaysia is the stormwater drainage design procedure first issued by the Department of Irrigation and Drainage Malaysia (D.I.D) in 2000. Compliance with the requirements of MSMA when building drainage works is required by law of all engineers in Malaysia. More than ten years after its first publication, DID has completely amended the first edition of MSMA (referred to as MSMA1) with the release of the second edition (referred to as MSMA2). Based on the case studies done for Kuala Lumpur, there are a lot of alterations in the second edition including the following: The design storm has increased by up to 125% for 10 out of the 14 rainfall stations in Kuala Lumpur. For commercial and city area, the design flow using the Rational Method has increased by up to 131%. The Site Storage Requirement for On-Site Detention for a factory site in Kuala Lumpur has increased by up to 235%, Detention pond has increased by up to 129% in the storage. The increase in the values of the main design parameters as described above can be attributed to the changes between the first and the second editions of MSMA as follows: Longer rainfall data covering 100 more rainfall stations in Peninsular Malaysia. This results in higher rainfall intensities for certain durations and ARI's. Compared to the first edition where it was divided into east and west coast of the Peninsula for the derivation of the storm temporal pattern, Peninsular Malaysia is now grouped into five regions. The changes in temporal patterns give rise to different hydrograph peaks and shapes. The coefficient of runoff in the Rational Method is now set according to the types of landuse, and not dependent on storm durations and intensities, and whether a catchment is urban/rural in condition. Differences in the estimated peak flow is the result . The changes in the storm intensites, temporal patterns and the loss model used all influenced the Time-Area Method in MSMA2. For Kuala Lumpur it is noted that the storm intensities have increased and the storm temporal pattern is more peaky, thus resulting in a more peaky flow hydrograph. The Approximate Swinburne Method in MSMA2 resulted in higher Site Storage Requirement (SSR) than the Swinburne Method in the first edition. The approximate method in MSMA2 has caused an over estimation of the SSR's. The storage of a detention pond has increased using MSMA2 compared to the first edition because of the increase in the storm intensities, temporal patterns and the selection of loss rate. A software tool Is built to help engineers to carry out the computations using both editions precisely and to allow comparison be made of their changes speedily, in view of the many changes in computational methods between the first and second editions of MSMA. The tool is a stormwater design software created for MSMA. The software is developed by Ir. Dr. Quek Keng Hong- a professonal engineer in Malaysia. MSMAware also includes more than a dozen storm stations and their temporal patterns in the East Malaysian state of Sarawak. MSMA WORKSHOP : 00:00:05 MSMA workshop 00:00:06 MSMA training 00:00:07 MSMA seminar 00:00:08 MSMA courses 00:00:09 culvert design software MSMA workshop Phone 6012-7102620
Click here for more info...

MSMA workshop Phone 6012-7102620

MSMA workshop Phone 6012-7102620

http://msmaware.com/blog/urban-stormwater-management-manual-for-malaysia-or-the-manual-saliran-mesra-alam-malaysia-msma/
Ph (6012)-7102620

The Urban Stormwater Management Manual or the Manual Saliran Mesra Alam Malaysia (MSMA) is the urban drainage design guideline first published by the Department of Irrigation and Drainage Malaysia in early 2000. Compliance with the requirements of MSMA when designing drainage system is required legally of all engineers in Malaysia. The Department of Irrigation and Drainage has completely amended the first edition of MSMA (known as MSMA1) with the publication of the second edition (known as MSMA2) about 11 years after its first edition. There are numerous changes in the second edition including (based on case studies done for Kuala Lumpur):

10 out of the fourteen rainfall stations in Kuala Lumpur have its design rainfall increased by up to 124%.
For commercial and city area, the design discharge using the Rational Method has increased by up to 131%.
The Site Storage Requirement for OSD for a factory site in Kuala Lumpur has increased by up to 234%,
The storage volume of a detention basin has increased by up to 128%.

The hike in the values of the main design parameters as described above can be attributed to the differences between the first and the second editions of MSMA as follows:

Longer precipitation data covering 100 more storm stations in Peninsular Malaysia. The rainfall intensities for most ARI's are higher.

Peninsular Malaysia is now divided into 5 regions for the computation of the rainfall temporal pattern, compared to the first edition where it was divided into east and west coast of the Peninsula. The dissimilar hydrograph peaks and shapes caused by the differences in temporal patterns.

The coefficient of runoff in the Rational Method is now established according to the types of landuse, and not influenced by rainfall durations and intensities, and whether a catchment is urban/rural in condition. This resulted in differences in the estimated peak discharge.

The Time-Area Method in the second editon is affected by the differences in the rainfall intensites, temporal patterns and the loss model used. For Kuala Lumpur it is noticed that the rainfall intensities have increased and the rainfall temporal pattern is more peaky, thus resulting in a more peaky discharge hydrograph.

The Approximate Swinburne Method in the second editon gives higher Site Storage Requirement (SSR) than the Swinburne Method in MSMA1. The approximate method in the second editon has given rise to an over estimation of the SSR's.

Compared to MSMA1, the increase in the rainfall intensities, temporal patterns and the selection of loss rate have given rise to a rise in the storage volume of a detention basin using the second edition.

In view of the many differences in computational methods between the first and second editions of MSMA, a tool is developed to help engineers to carry out the computations using both editions accurately and to allow comparison be made of their differences speedily. A drainage design software has been created for MSMA. Ir. Dr. Quek Keng Hong- a practising engineer in Malaysia is the developer 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 workshop Phone 6012-7102620








https://www.youtube.com/watch?v=ROakUoy_y38