European Transport Research Review

An Open Access Journal

Table 5 Correlations between Density and independent variables

From: Derivation of level of service by artificial neural networks at horizontal curves: a case study in Egypt

		D	NL	LW	PW	LC	AADT	R	DA	e	HV
Density	PC	1.000	−0.214	−0.253*	0.190	−0.331**	0.871**	−0.914**	0.887**	0.849**	0.907**
Density	Sig.		0.060	0.025	0.095	0.003	0.000	0.000	0.000	0.000	0.000
NL	PC		1	−0.285*	0.992**	0.519**	−0.24*	−0.305**	0.179	0.254*	0.195
NL	Sig.			0.011	0.000	0.000	0.034	0.007	0.116	0.025	0.088
LW	PC			1	−0.165	0.021	0.35**	0.368**	−0.256*	−0.187	−0.291**
LW	Sig.				0.149	0.855	0.002	0.001	0.024	0.1	0.01
PW	PC				1	0.538**	−0.204	−0.268*	0.151	0.24*	0.166
PW	Sig.					0.000	0.073	0.018	0.188	0.035	0.146
LC	PC					1	0.195	0.19	−0.343**	−0.31**	0.021
LC	Sig.						0.088	0.095	0.002	0.006	0.855
AADT	PC						1	0.189	−0.179	−0.204	−0.151
AADT	Sig.							0.094	0.116	0.073	0.188
R	PC							1	−0.811**	−0.823**	0.21
R	Sig.								0.000	0.000	0.065
DA	PC								1	0.72**	0.179
DA	Sig.									0.000	0.116
e	PC									1	0.19
e	Sig.										0.095
HV	PC										1
HV	Sig.

PC pearson correlation coefficient, Sig. sig. (2-tailed)
** Correlation is significant at the 0.01 level (2-tailed)
* Correlation is significant at the 0.05 level (2-tailed)

Back to article page