Table 4 Input factor and sub-factor with their respective normalization scores and factor degree of suitability ranking

Slope

Degree

0–4

1

Very highly suitable

4–8

2

Highly

8–12

3

Moderately

12–22

4

Poorly

22–70

5

Unsuitable

Elevation

Meters

2204–2284

1

Very highly suitable

2284–2354

2

Highly

2354–2409

3

Moderately

2409–2451

4

Poorly

245–2548

5

Unsuitable

Proximity to road/ road type

Meters

Primary road (60 m,40 m)

1

Very highly suitable

Secondary road (30 m, 25 m)

2

Highly

Tertiary road (20 m,16 m)

3

Moderately

Quaternary (12 m,10 m)

4

Poorly

Quinary (8 m)

5

Unsuitable

Proximity to religious institutions

Meters

 < 500

1

Very highly suitable

500–1000

2

Highly

1000–1700

3

Moderately

1700–2500

4

Poorly

2500–3753

5

Unsuitable

Existing land use

Land use type

Cultivation land

2

Highly

Grassland

1

Very highly

Forestland

1

Very highly

Water bodies

3

Moderately

Settlement

4

Poorly

Urban open space/bare land

1

Very highly

Proximity to Market place

Meters

0–220

5

Unsuitable

220–580

4

Poorly

580–1055

3

Moderately

1055–1705

2

Highly

1705–2854

1

Very highly

NDVI

Value (− 1 to + 1)

− 0.9992–0.0862

5

Unsuitable

0.0862–0.2111

4

Poorly

0.2111–0.336

3

Moderately

0.336–0.4844

2

Highly

0.4844–0.9997

1

Very highly

Proximity to settlement

Meters

0–200

1

Very highly

200–500

2

Highly

500–1000

3

Moderately

1000–1600

4

Poorly

1600–2750

5

Unsuitable

Proximity to water/streams

Meters

871–1089.15

5

Unsuitable

653.5–871

4

Poorly

435.7–653.5

3

Moderately

217.8–435.7

2

Highly

0–217.8

1

Very highly

Flood susceptibility

Weighted sum value of 4 contributing factors

100–185

5

Unsuitable

185–260

4

Poorly

260–310

3

Moderately

310–360

2

Highly

360–485

1

Very highly