Chapter 3 Decision Support Model (IUWS-DSM) - Tubdok

26 New Conception and Decision Support Model for IUWS
the hierarchy of the IUWS (see § 2.1.3). In urban area, there are many different kinds of the
grouped water end-users that are divided into three sorts, i.e. 1. social and commercial, 2.
communal and ecological, and 3. industrial and special end-users (Figure 12). There are
more types than shown in Figure 12, so the corresponding database should be established
for gathering and adding all possible grouped end-users.
Categorisation of Grouped Water End-Users
social and commercial
residential
quarter
office
centre
communal and ecological
industrial and special
university
shopping
centre
landscape waterscape
school hospital airport
seaport
sport
center
recreational
site
food paper textile
swimming
centre
street
washing
car-washing
centre
club
complex
lake / pond
construction
site
Figure 12: Categorisation of grouped water end-users
2.2.1.2 end-user’s water usage profile (EUWUP)
. . . . . .
. . . . . .
. . . . . .
Subsequently, the grouped water end-user’s water usage profile (EUWUP) is defined as
that each type of water end-user has specified and standardised information of water usage
including water demand with required water qualities and used water amounts from different
streams. Two measures are taken, i.e. detailed EUWUP and general EUWUP. The detailed
EUWUP is applied when the adequate project information is available. Otherwise, the
general EUWUP is adopted for rough evaluation.
Detailed EUWUP. It is constructed based on the quantity and quality requirements of end
uses considering their occurring places and purposes of usage. Three sorts of end uses are
defined: indoor, outdoor and specialised end uses, where each sort is further fractionised into
concrete end uses (Figure 13). The indoor end uses are mainly the water consumption by
human beings, the outdoor end uses are for ecological and environmental purposes, and the
specialised end uses involve the specific and industrial water consumption. Their quality
requirements are corresponding to the desired water standards set up in Table 2.
As depicted in Figure 13, besides categorising the water end uses with desired water
quality, the information of used water is also shown simultaneously, where the normal water
usage profiles take into account only the water demand just in the sense of quantity. The
most important significance of the EUWUP is that it pictures the whole view of water usage
and provokes the planners to consider and plan both desired water system (i.e. water supply