1. Calibrating Map Layers
Houses
Density
HDensity
Favor
Avoid
RENUMBER Housing_density ASSIGNING 1 TO 0 THRU 5 ASSIGNING 3 TO 5 THRU
ASSIGNING 6 TO 15 THRU 40 ASSIGNING 9 TO 40 THRU FOR HDensity
9 (avoid) 6
1 (favor) 3
Base
Maps
Derived
RProximity
SAreas
VExposure
RENUMBER Road_proximity ASSIGNING 1 TO 0 THRU 2 ASSIGNING 3 TO 2 THRU 5
ASSIGNING 6 TO 5 THRU 15 ASSIGNING 9 TO 15 THRU FOR RProximity
RENUMBER SensitiveAreas_proximity ASSIGNING 9 TO 0 ASSIGNING 6 TO .001 THRU 2
ASSIGNING 3 TO 2 THRU 4 ASSIGNING 1 TO 4 THRU FOR SAreas
RENUMBER Houses_ visualExposure ASSIGNING 1 TO 0 THRU 8 ASSIGNING 3 TO 8 THRU 12
ASSIGNING 6 TO 12 THRU 20 ASSIGNING 9 TO 20 THRU FOR VExposure
(Berry)

2. Weighting Map Layers HDensity = 3.0 RProximity = 6.0 SAreas = 1.0
VExposure = #1
(Berry)
Weight
Discrete Cost Map
Weighted Average = [Sum of the Products] / [Sum of the Weights]
wAvg #1 = [(3 * 1) + (6 * 1) + (1 * 10) + (1 * 10)] / [ ]
= 29 / 22 = (Favor)
#1 = 1.3 (Favor)
1.3
Most Preferred Least Preferred
(Favor) (Avoid)
1.0
10.0
10 times
more important #2
#2 = 7.2 (Avoid)
7.2
wAvg #2 = [(3 * 1) + (6 * 1) + (9 * 10) + (6 * 10)] / [ ]
= 159 / 22 = (Avoid)
3.0
6.0
9.0
Simple average = = 11 / 4 = (somewhat favor)