| Contents Notes |
"In this study, the possibility of reducing the extent of overflows from combined sewer systems was studied. In general, when no in-line or other in-system storage is used, integrated regulator operation has no advantage over local automatic-dynamic regulator control unless 1) expected flow rates to the interceptors are estimated before they occur, and 2) an operational bias is introduced that either minimizes overflows from only some of the regulators on an interceptor or favors the timing of overflows from all of the outlets, such as after the initial storm period. A review of the capabilities of digital recording weather radar indicates it has the best potential for estimating rainfall needed for flow rate predictions. Other possible uses for such radars in metropolitan areas were considered, particularly their use as part of urban flood warning systems. The possibility of inducing in-line storage in collector sewers to gain greater flexibility with integrated regulator operation was also considered." |
