FLOOD09697

• County: Statewide
• Community: Nationwide
• Basin: Statewide
• Title: Mathematical Modeling of a Sociological and Hydrologic Decision System
• Date: 6/1/1978
• Prepared By: Institute for Social Science Research on Natural Resources, Utah State Univ.
• Floodplain - Doc Type: Educational/Technical/Reference Information

Table 5.9. A summarization of the general equations for the sociologic-hydrologic model (unstandardized
form whit;h may be applied for any geographic area).

Equation I Perception of need for flood control in the local area:

CONCL = 10.B + .506XI + .033X2 + .2BX3 + .300X4 - .453X5 + .148X6 + .146x7 + .230xB + .0012\X9xlO)
. (5.4)

Variables in Equation I are defined in Table 5.1
Equation II and IF statement a: decision agency need:

N = CI +C2M + C3 CONCL+C4 PAYL

IF Statement A IF N >0, continue .

(5.6)
(5.7)

Variables in EQuation II and IF Statement A are defined in section on Eauation II.
Equation III Initial agency evaluations
(I) (2) (3) (4) (S) (6)
Y = - .241 - .305XI .0695X2X9 + B.43X2/X1O + .00S68X3Xl1 + .136X4X12 + .228XSX13 .
Variables in Equation III are dermed in Table 5.2
IF statements Bl to B3

(S.9)

IF statement Bl for cost of proposal:

if X10 ~Cm' continue.

IF statement B2 for effectiveness of proposal:

ifX17;;;:'Ps' continue.

IF statement B3 for benefit-cost ratio:

(5.13)

(S.14)

if X9 ~ Bs. continue

(S.15)

... Variables in IF statements Bt through B3 are defined in Table 5.2

Equation IV: Intermediate agency evaluations
(I) (2) (3) (4) (S) (6) (7)
Y = + .491. .206Xl - .00S8SX2X9 + 1.8SX2 (I!XIO) + .0012SX3Xl1 + .108X4X12 - .0189X5X13 +.442X7XIS

(S.16)

Variables in EQuation IV are defined in Table 5.2
Equation V(a) Population Evaluation Equation
(I) (2) (3) (4) (5) (6) (7) (8)
POPEVE = .64S - .129XI + .129X2 - .491X3 .047X4 + .060XS + .024X6X12 + .033X7X13 + .0085X8X14
(9) (10) (11)
+ .00BIX9X15 + .0090XlOX16 + .0062Xl1 X17 (5.24)
Variables in EQuation Veal are defined in Table 5.6
IF statement C 1 - C5

IF statement C1 for recreation.
(8)
Reject ifXBXI4 <;;Rm (S.30)

IF statement C2 for ecology:
(9)
Reject if X9XIS <;;Nm . (S.31)

IF statement C3 for aesthetics.
(7)
Reject if X7X13 <;;Am (S.32)

IF statement C4 for effectiveness:
(6)
Reject if X6X12 <;;Em (5.33)

IF statement C5 for cost:
(10)
Reject if XlOXI6 <;;Mm (S.34)

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