Table 3 Geographical environment attributes

Static

Greenness

W

[4, 45, 48, 54]

C

[21]

Blue environment

W

[48, 50]

Built elements (i.e., buildings, football field, junction)

W

[50]

C

[55]

Various directions of street inclination

W

[40]

Landmarks

W

[40]

Path width

C

[21]

Path separation

C

[21, 24, 55]

Parked car

W

[4]

Time of the day

W

[53]

Dynamic

Crowd density

W

[25,26,27, 46, 49, 51]

Traffic volume/condition/speed/direction (Pedestrian, cyclists, and cars)

C

[21, 24, 55]

Soundscape

W

[52, 53]

Crossing gap (Car’s Adaptive Headlight Systems)

W

[47]