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

Table 3

Linear regression model, the simultaneous effect of two or more independent variables on the dependent variable.

Tests	Independent variable	Dependent variable	Standard regression coefficient	R^2 adjust (%)
9	•Angle of access	Spot speed	−0.48–0.116	26
	•Volume
10	•Angle of access	Spot speed	−0.46–0.091–0.12	27
	•Volume
	•Total ramp density
11	•Volume	Spot speed	0.10–0.12–0.64	47
	•Total ramp density
	•On-street parking
12	•Total ramp density	Spot speed	−0.13–0.48 0.24	50
	•On-street parking
	•Deceleration and acceleration lanes
13	•Total ramp density	Spot speed	−0.1–0.14–0.099–0.56	50
	•Angle of access
	•Volume
	•On-street parking