The Impact of Road Types on the Energy Consumption of Electric Vehicles

Table 5

Descriptive statistics of consumption data per mile by road type.

Variable	N	Mean	St. Dev.	Minimum	Q25	Median	Q75	Maximum
Interstate
Energy	60	0.2662	0.0301	0.1987	0.2477	0.2663	0.2885	0.3176
Speed	60	61.4583	5.4816	31.8297	58.6115	62.2175	65.3182	70.0913
Speed variation	60	14.6438	2.984	8.2689	12.6918	14.5925	15.7563	30.3741
Other freeways and expressways
Energy	30	0.2329	0.0178	0.1873	0.2242	0.2373	0.2414	0.2701
Speed	30	55.7797	3.1491	49.3646	54.4795	55.0529	58.0075	62.8758
Speed variation	30	14.3000	2.3692	9.5429	12.4092	14.3427	15.9368	20.4052
Other principal arterial
Energy	90	0.2028	0.0170	0.1739	0.1901	0.1990	0.2103	0.2566
Speed	90	39.0169	3.4641	31.5417	36.933	38.9302	41.2102	49.7854
Speed variation	90	11.588	2.8368	4.822	9.4748	11.4359	13.5615	18.2315
Minor arterial
Energy	30	0.2092	0.0247	0.1654	0.1941	0.2120	0.2172	0.2706
Speed	30	22.1247	2.5702	16.686	20.0286	22.8377	23.685	27.3325
Speed variation	30	12.1563	1.1815	10.1625	11.3649	12.1708	13.1329	14.3568
Major collector
Energy	120	0.1608	0.0685	0.0616	0.1033	0.1486	0.2152	0.2886
Speed	120	29.9445	4.9478	17.9305	26.3254	29.5199	34.0545	40.9641
Speed variation	120	11.2858	1.9104	6.9983	9.8735	11.2197	12.3264	16.844
Local road
Energy	60	0.2438	0.0683	0.1262	0.1773	0.2591	0.2952	0.3900
Speed	60	31.4344	4.3612	17.3194	28.6242	32.3901	34.4652	38.1414
Speed variation	60	9.285	2.4479	5.2914	7.4655	8.809	10.201	16.1907