. Author manuscript; available in PMC: 2015 Sep 8.

Published in final edited form as: Int J Heavy Veh Syst. 2014 Jul;21(3):241–261. doi: 10.1504/IJHVS.2014.066080

Table 9.

Results of regression results for VDV vibration and transmissibility for front-end loaders

	VDV X-axis (chassis)	VDV Y-axis (chassis)	VDV Z-axis (chassis)	VDV X-axis (seat)	VDV Y-axis (seat)	VDV Z-axis (seat)	VDV total (seat)	VDV transmissibility
Constant	9.5152	10.7710	2.1358	–2.7241	–1.3505	2.4271	–2.3440	0.9063
Loaded vs. unloaded	0.1154	–0.2426	0.5380	1.1694	0.7225	–0.3124	1.4953	–0.1170
Speed (mph)	–0.0596	–0.0881	–0.1508	–0.0027	–0.0343	–0.0788	–0.0676	0.0212
Vehicle age (years)	–1.4978^*	–1.4929^**	–0.7325	0.2853	0.1591	–0.1319	0.3077	0.0118
Vehicle capacity (short tons)	0.3418	0.1509	0.8660	0.6537	0.5550	0.2846	1.2077	–0.0212
Adjusted R²	0.10	0.19	0.15	0.15	0.06	0.00	0.08	0.00

p < 0.05

^**

p < 0.01

***p < 0.001.