The question of how best to meet near-term and long-term future demands under different
conservation and demand assumptions led the City of Toronto and Region of York to
formulate a new study of supply options and infrastructure needs. The study was called the
Joint Optimization Study (JOS). The JOS was undertaken to first determine projected
water demands for Toronto and York Region for years 2011 and 2031, and then to identify
the infrastructure required in each service area to meet their respective demands in the most
cost-effective manner. In addition, the optimal supply mix from the Toronto treatment
plants to York Region and from another external source was also to be determined. Toronto and York Region separated the JOS into two distinct phases. First, a lead
consultant was selected to update and combine the individual hydraulic models of Toronto
and York Region into a single, area-wide extended period simulation (EPS) model. The
selected consultant, Earth Tech (Canada), prepared an H2ONET EPS model for the existing
system and then developed the required demand projections for years 2011 and 2031. Earth
Tech next assisted Toronto and York Region in selecting a specialized optimization
consultant to work with the lead consultant to develop optimized infrastructure plans for a
number of different demand scenarios and water supply options. Optimatics/Frey was
selected as the optimization consultant and applied its Optimatics GA optimization program
to the various joint Toronto-York Region maximum day EPS models to minimize system
life-cycle costs. Includes 6 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 270 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 13 |
| Published : | 04/18/2004 |
