Table 1 The original mapping between the noise ranges and the corresponding colors (in RGB) for the area of Thessaloniki/Neapoli (left) and Kalamaria (right). Each noise range within an area is mapped to a different color, while the color mappings between the two areas differ

Range

Color (RGB)

[40, 45) dB

[182, 254, 191]

[45, 50) dB

[255, 255, 0]

[50, 55) dB

[254, 196, 71]

[55, 60) dB

[253, 103, 2]

[60, 65) dB

[255, 51, 50]

[65, 70) dB

[152, 0, 51]

[70, 75) dB

[174, 155, 219]

[75, 80) dB

[1, 0, 251]

80+ dB

[1, 1, 65]

Range

Color (RGB)

[35, 40) dB

[80, 167, 50]

[40, 45) dB

[14, 113, 49]

[45, 50) dB

[255, 243, 59]

[50, 55) dB

[172, 121, 78]

[55, 60) dB

[255, 94, 55]

[60, 65) dB

[192, 23, 18]

[65, 70) dB

[138, 18, 19]

[70, 75) dB

[144, 14, 102]

[75, 80) dB

[40, 115, 183]

80+ dB

[10, 65, 121]