Exploring the Energy Efficiency of Electric Vehicles with Driving Behavioral Data from a Field Test and Questionnaire

Table 4

Correlations between DSQ and measured driving behaviors.

Smooth Traffic	Average Speed	Acc Share	Dec Share	Constant Share	Idling Share	Average Acc	Average Dec	Energy Regeneration	Variation of Steering Wheel Angle
Factor 1	0.50	0.15	-0.11	0.26	-0.76	0.19	-0.15	0.16	-0.15
Factor 2	-0.37	-0.27	0.47	-0.37	0.53	-0.03	0.18	-0.09	0.13
Factor 3	-0.27	0.16	0.48	-0.58	0.08	0.28	0.18	0.30	0.59
Factor 4	0.66	-0.35	-0.27	0.63	-0.23	-0.44	-0.33	-0.34	-0.46
Factor 5	0.07	0.26	0.47	-0.57	-0.15	0.48	0.35	0.60	0.40
Factor 6	0.14	0.04	0.14	0.01	-0.40	-0.07	0.22	0.06	-0.22
Factor 7	-0.17	-0.05	0.50	-0.40	0.03	0.15	0.30	0.25	0.51
Factor 8	0.19	-0.27	-0.30	0.46	0.09	-0.48	-0.29	-0.32	0.17
Congested Traffic	Average Speed	Acc Share	Dec Share	Constant Share	Idling Share	Average Acc	Average Dec	Energy Regeneration	Variation of Steering Wheel Angle
Factor 1	0.51	0.02	-0.03	0.26	-0.58	0.17	0.15	0.18	-0.23
Factor 2	0.05	-0.05	0.50	-0.33	0.21	0.03	0.22	0.02	0.16
Factor 3	0.10	0.29	0.48	-0.38	-0.08	0.30	0.30	0.30	0.48
Factor 4	0.31	-0.36	-0.21	0.47	-0.36	-0.20	-0.19	-0.15	-0.55
Factor 5	0.12	0.60	0.50	-0.60	0.01	0.62	0.30	0.57	0.62
Factor 6	0.61	0.07	0.42	0.00	-0.58	-0.01	0.23	0.24	-0.17
Factor 7	-0.01	0.39	0.43	-0.46	0.04	0.29	0.47	0.42	0.62
Factor 8	-0.39	0.14	-0.37	0.01	0.25	0.02	0.02	-0.04	0.06

N=13
. Correlation is significant at the 0.01 level (2-tailed).
. Correlation is significant at the 0.05 level (2-tailed).