A Data-Driven Functional Classification of Urban Roadways Based on Geometric Design, Traffic Characteristics, and Land Use Features

Table 6

The correlation matrix.

Correlation matrix	A	B	C	D	E	F	G	H	L
A	1	−0.49	−0.25	−0.66	−0.16	−0.01	−0.15	0.57	−0.51
B	−0.49	1	0.23	0.56	0.17	0.12	0.07	−0.65	0.47
C	−0.25	0.23	1	0.16	−0.12	−0.39	0.22	−0.14	0.22
D	−0.66	0.56	0.16	1	0.35	0.15	0.03	−0.65	0.64
E	−0.16	0.17	−0.12	0.35	1	0.42	−0.08	−0.3	0.22
F	−0.01	0.12	−0.39	0.15	0.42	1	−0.06	−0.21	0.13
G	−0.15	0.07	0.22	0.03	−0.08	−0.06	1	−0.07	0.53
H	0.57	−0.65	−0.14	−0.65	−0.3	−0.21	−0.07	1	−0.54
I	−0.51	0.47	0.22	0.64	0.22	0.13	0.53	−0.54	1