Optimal cost design of branched sewer systems

Larry W. Mays, Ben Chie Yen

Research output: Contribution to journalArticlepeer-review

62 Scopus citations


Techniques using dynamic programing (DP) and discrete differential dynamic programing (DDDP) to achieve optimal cost design of pipe sizes and elevations of branched sewer systems have been developed and demonstrated by an example. The branched system is decomposed into equivalent serial subsystems, which are then solved in sequence. DDDP requires less computer time than DP, although it cannot guarantee global optimization. Major factors affecting the efficiency in using DDDP are the location and width of the initial trial trajectory corridor, the number of states (lattice points) used, and the reduction rate of the state increment during iterations.

Original languageEnglish (US)
Pages (from-to)37-47
Number of pages11
JournalWater Resources Research
Issue number1
StatePublished - Feb 1975

ASJC Scopus subject areas

  • Water Science and Technology


Dive into the research topics of 'Optimal cost design of branched sewer systems'. Together they form a unique fingerprint.

Cite this