BTS | TABLE 5 - Values of Travel Time Savings (VTTS)

TABLE 5 - Values of Travel Time Savings (VTTS)

$ per person-hour noncommuter car driver

Attribute	Model 1: All attributes assumed to be attended to		Model 2: Deterministic attribute exclusion
Attribute	Sample mean	Sample standard deviation	Sample mean	Sample standard deviation
Free flow time	17.80	9.12	18.89	8.08
Slowed down time	17.61	7.73	24.96	11.89
Range: free flow time	−8.30 to 67.31	−8.30 to 67.31	−4.30 to 52.49	−4.30 to 52.49
Range: slowed down time	−66.91 to 35.69	−66.91 to 35.69	−6.53 to 63.26	−6.53 to 63.26
Proportion of negative VTTS	2.90	2.32	0.78	0.78
Ratio slowed to free flow time	0.989	0.848	1.321	1.472
Sample size	3,568	3,568	3,072	2,944