Otto J. HelwegThanakorn Uan-OnTexas A and M UniversityMahidol University2018-06-142018-06-141988-01-01Water International. Vol.13, No.2 (1988), 80-84025080602-s2.0-0024156096https://repository.li.mahidol.ac.th/handle/20.500.14594/15547The surrogate worth trade-off method has been extended to a quadratic programming optimization model and risk has been incorporated into the vector of objective functions which explicitly shows the decision maker the trade-offs between net benefits and increased reliability of the system or the trade-offs between competing reliabilities such as flood control and water supply. The approach is called the Nonlinear Risk-Benefit (NRB) Algorithm. The NRB Algorithm is applied to the Broken Bow Reservoir to illustrate the increased information made available by this approach. © Taylor & Francis Group, LLC.Mahidol UniversityEnvironmental ScienceArticleSCOPUS10.1080/02508068808692004