Application of PCSWMM to Explore Possible Climate Change Impacts on Surface Flooding in a Peri-Urban Area of Pathumthani, Thailand

Shrestha, Ashish; Chaosakul, Thitirat; Priyankara, Dedduwa P. M. P.; Chuyen, Ly Hong; Myat, Su Su; Syne, Nan Kham; Irvine, Kim N.; Koottatep, Thammarat; Babel, Mukand S.

doi:10.14796/jwmm.c377

Cited by 13 publications

(11 citation statements)

References 19 publications

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“…In one study [25] PCSWMM was used to investigate the change in surface flooding due to possible climate change. The area under study is Rattanakosin Village, Thailand.…”

Section: Effect Of Rainfall On Trafficmentioning

confidence: 99%

Modeling the effects of rainfall on vehicular traffic

2018

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Traffic management and drainage system are two vital issues for any metropolitan city. Like other big cities, Karachi is also facing problems due to lack of traffic management and poor drainage system. The main objective of the study is to model the interdisciplinary issues of storm water and its effect on the traffic of Karachi. The specific objectives are: (1) to calibrate and validate urban hydraulic and traffic micro-simulation models and (2) to model storm water and traffic for future conditions. This study is carried out on a 3-km section of arterial road. In this study, loose coupling of two models is done. For urban drainage, PCSWMM, and for traffic, VISSIM is used. Both models are calibrated for an existing situation on rainfall event of August 3, 2013, and then used for prediction of future scenario based on 50-year and 100-year return periods of rainfall. Sensitivity analysis of VISSIM is performed. Locations and lengths of road sections, where ponding happens for the future scenario, are identified using PCSWMM. These lengths are then marked in VISSIM as low-speed areas, and delays are measured. Analysis of PCSWMM shows that for 100-year return period, there is maximum 0.318 ha-m (3180 cubic meters) water stored in the depressions of the road after 10 h of rainfall. Analysis of VISSIM shows that for a 100-year return period, there is a maximum delay of 35 min on NIPA to Hasan Square section of University Road.

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“…In one study [25] PCSWMM was used to investigate the change in surface flooding due to possible climate change. The area under study is Rattanakosin Village, Thailand.…”

Section: Effect Of Rainfall On Trafficmentioning

confidence: 99%

Modeling the effects of rainfall on vehicular traffic

2018

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“…The corrections were necessary to correct the underestimation of intensities from the LARS-WG and Hyetos outputs. Correction for intensities were developed by Shrestha (2013), using equation y ¼ 1:58x À0:14 ; providing the factor for correction where x is time (h). Some studies by the Bangkok Metropolitan Administration (BMA) in Bangkok, Thailand, for past rainfall and flood events suggest that when the 3-h rainfall depth exceeds 100 mm, surface flooding occurs.…”

Section: Intensity-duration-frequency (Idf) and Design Stormsmentioning

confidence: 99%

“…Shrestha et al (2014) applied a 1D PCSWMM model to simulate possible climate change impacts on surface flooding in the peri-urban area of Pathum Thani, Thailand.…”

Section: Integrating Modelsmentioning

confidence: 99%

“…While precipitation is significant in studying the performance of urban drainage and surface flooding, temperature and evaporation have much less effect during surface flooding. In the study by Shrestha et al (2014), applying the one-dimensional PCSWMM model to study possible climate change impacts on surface flooding in the peri-urban area of Pathum Thani, Thailand. It was found that when considering the evaporation rate, the reduction in flood volume was only up to 1.08 %.…”

Section: Performance Assessmentmentioning

confidence: 99%

“…There are many approaches to analyze the impact of climate change on the hydraulic functions of urban drainage. Shrestha et al (2014) approached the analysis of impact of climate change on surface flooding in the peri-urban area of Pathum Thani, Thailand, with the application of a one-dimensional PCSWMM (James et al 2002) urban drainage model. The study included the application of rainfall and temperature data generated from the ECHAM4 general circulation model (Roeckner et al 1992(Roeckner et al , 1996 with data sets from the PRECIS regional climate model for long-term simulation as well as the theoretical increments of rainfall percentage to discern the performance scenarios of urban drainage.…”

Section: Introductionmentioning

confidence: 99%

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Managing Water Resources Under Climate Uncertainty

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Patterns of climate variables are changing under climate change resulting in increased frequency and intensity of extreme events. The implications are thus observed in existing natural and man-made systems. Man-made systems, mainly storm water management systems, are prone to it's functional failure due to recurrent events of extreme rainfall. Most urban drainage systems designed under stationary climate consideration are operating over capacity well ahead of their design period. There are several approaches and tools available to model climate change and urban drainage. This chapter discusses the integrated approach of climate change and urban drainage modelling to assess the direct implications of climate change on hydraulic performance of urban drainage.

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Rainwater harvesting potential in a semiarid Southern California city

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To determine the rainwater capture potential in a small residential city located in semiarid Southern California, a model of the city's existing storm drainage system was developed using a watershed management model based on the U.S. Environmental Protection Agency's storm water management model. The model analyzes the effect of (1) 2‐ and 10‐year 24‐h storms and (2) dry, average, and wet climatic conditions under five different scenarios, considering (1) single rain barrel, (2) 5 rain barrels, (3) 7 rain barrels, (4) 10 rain barrels, and (5) a storage tank in each residential lot. Results show that, due to its fixed capacity, rain barrel(s) can only save a limited amount of water. A storage tank per lot increases rainwater capture efficiency, which can collect 19% of city's annual reclaimed water volume in an average climatic year. However, storage tanks can only be cost‐effective to residents through financial supports from local agencies.

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Application of PCSWMM to Explore Possible Climate Change Impacts on Surface Flooding in a Peri-Urban Area of Pathumthani, Thailand

Abstract: Under climate change scenarios, many urban areas in Southeast Asia may become increasingly susceptible to localized flooding due to greater rainfall extremes. This study focused on Rattanakosin Village, Thailand, a peri-urban area near Bangkok. Rainfall

Cited by 13 publications

References 19 publications

Modeling the effects of rainfall on vehicular traffic

Modeling the effects of rainfall on vehicular traffic

Integrated Modelling of Climate Change and Urban Drainage

Rainwater harvesting potential in a semiarid Southern California city

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