BIKES

Data:
                                             
Street Lane Traffic Counts
Residential Yes	bikes 	16	9	10	13	19	20	18	17	35	55
Residential Yes other	58	90	48	57	103	57	86	112	273	64
Residential No	bikes	12	1	2	4	9	7	9	8	NA	NA
Residential No  other	113	18	14	44	208	67	29	154	NA	NA
Side	Yes	bikes	8	35	31	19	38	47	44	44	29	18
Side	Yes other	29	415	425	42	180	675	620	437	47	462
Side	No	bikes	10	43	5	14	58	15	0	47	51	32
Side	No	other	557	1258	499	601	1163	700	90	1093	1459	1086
Main	Yes	bikes	60	51	58	59	53	68	68	60	71	63
Main	Yes	other	1545   1499  1598	503	407	1494	1558	1706	476	752
Main	No	bikes	8	9	6	9	19	61	31	75	14	25
Main	No	other	1248	1246  1596   1765	1290	2498	2346	3101	1918	2318

Description:

A survey was made of bicycle and other traffic in the neighbourhood of the Berkeley campus of the University of California in 1993. Sixty city streets were selected at random, with a stratification into three levels of activity and whether the street had a marked bicycle lane. The counts observed in one hour are shown in the table: for two of the streets the data were lost.

Format:

- Street
Type of street. (Residential/Side/Main)

- Lane
Bike lane? (Yes/No)

- Traffic
Type of trafic. (bikes/others)

- Counts
Counts observed in one hour.

Task:

Report on these data, model the counts of bicycle and other traffic in the neighbourhood of the Berkeley campus, paying particular attention to the effects of bicycle lanes.