Table 1. Racial Differences With Time, Distance and Mode of Travel (African Americans), Ethnographic and Economic Samples.

A=African American, W=White, B=Bi-racial

SD=Self Drive, FD=Friend Drove, WB= Walk/Bike, D=Delivered

#	Age	Race	Gender	Travel Mode	Travel Distance (miles)	Travel Time (min)	# of Purchases /Week
002	53	A	M	SD	4	8	14
005	53	A	M	WB	0.5	10	17.5
006	54	A	M	WB	0.5	10	10
008	52	A	M	SD	1.3	5	14
010	50	A	M	WB	0.5	25	5
011	46	A	F	SD	0.5	5	14
012	51	A	M	FD	0.5	0	21
013	49	A	M	SD	10	60	21
014	47	A	M	D	0	25	21
015	36	A	F	SD	10	60	14
016	49	A	M	D	0	25	14
018	52	A	F	FD	4	120	14
019	40	A	M	WB	0.5	6	21
024	48	A	M	WB/D	0.5	10	14
025	49	A	M	WB	0.3	60	7
029	43	A	F	D	2	30	14
009	29	B	M	WB/FD	1	17.5	21
Data Mean (17)	47.1			7 by car 7 WB	2.1	28.0	15.1
Sample Mean (109)	48.7				1.8	31.2	15.0