relation: https://khub.utp.edu.my/scholars/9990/ title: Advances and Challenging Issues in Subsurface Drainage Module Technology and BIOECODS: A Review creator: Abdurrasheed, A.S. creator: Yusof, K.W. creator: Takaijudin, H.B. creator: Ghani, A.A. creator: Muhammad, M.M. creator: Sholagberu, A.T. description: Subsurface drainage modules are important components of the Bio-ecological Drainage System (BIOECODS) which is a system designed to manage stormwater quantity and quality using constructed grass swales, subsurface modules, dry and wet ponds. BIOECODS is gradually gaining attention as one of the most ecologically sustainable solutions to the frequent flash floods in Malaysia and the rest of the world with a focus on the impact of the subsurface modules to the effectiveness of the system. Nearly two decades of post-construction research in the BIOECODS technology, there is need to review findings and areas of improvement in the system. Thus, this study highlighted the key advances and challenges in these subsurface drainage modules through an extensive review of related literature. From the study, more work is required on the hydraulic characteristics, flow attenuation and direct validation methods between field, laboratory, and numerical data. Also, there is concern over the loss of efficiency during the design life especially the infiltration capacity of the module, the state of the geotextile and hydronet over time. It is recommended for the sake of higher performance, that there should be an onsite methodology to assess the permeability, rate of clogging and condition of the geotextile as well as the hydronet over time. © The Authors, published by EDP Sciences, 2018. publisher: EDP Sciences date: 2018 type: Conference or Workshop Item type: PeerReviewed identifier: Abdurrasheed, A.S. and Yusof, K.W. and Takaijudin, H.B. and Ghani, A.A. and Muhammad, M.M. and Sholagberu, A.T. (2018) Advances and Challenging Issues in Subsurface Drainage Module Technology and BIOECODS: A Review. In: UNSPECIFIED. relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055466659&doi=10.1051%2fmatecconf%2f201820307005&partnerID=40&md5=b0e331ecb2e6e4e23d8aba98a66bcb6c relation: 10.1051/matecconf/201820307005 identifier: 10.1051/matecconf/201820307005