FINAL REPORT FOR THE METHODOLOGY STUDY OF THE CONSUMER BRAKING INFORMATION INITIATIVE - PHASE II. APPENDIX E. FIRST ROUND TEST DATA

APPENDIX E. FIRST ROUND TEST DATA

TABLE E-1. STOPPING DISTANCE RESULTS CHEVROLET ASTRO, FIRST ROUND OF TESTING
Stop No.	Stopping Distance, ft	Pedal Effort at 0.1 sec, lbf	Pedal Effort at 0.2 sec, lbf	Peak Effort, lbf	Effort Class
Dry Surface, 10/7/99
1	170.63	74.83	124.01	177.86	B
2	170.22	103.45	109.81	177.01	A
3	169.91	83.31	104.09	178.07	B
4	171.22	48.97	98.57	168.74	D
5	172.38	98.15	131.43	181.46	B
6	167.43	107.27	178.7	251.84	A
7	170.35	47.91	88.19	152.51	D
8	174.63	16.96	64.66	156.45	D
9	173.13	23.53	65.08	166.2	D
10	169.73	47.27	101.12	165.35	D

AVG	170.963
STD DEV	2.010158
95%	173.955
Wet Surface, 10/7/99
1	187.04	44.31	66.56	163.87	D
2	190.47	4.24	55.54	156.23	D
3	181.17	83.31	97.09	181.67	D
4	184.52	44.09	135.46	247.6	D
5	186.12	161.53	170.86	284.06	A
6	185.97	129.1	174.04	257.99	A
7	181.99	162.38	182.31	260.74	A
8	181.19	144.36	170.65	228.73	A
9	184.8	158.78	158.35	223.43	A
10	179.06	179.98	161.11	238.91	A

AVG	184.233
STD DEV	3.402516
95%	188.9265

TABLE E-2. STOPPING DISTANCE RESULTS CHEVROLET BLAZER, FIRST ROUND OF TESTING
Stop No.	Stopping Distance, ft	Pedal Effort at 0.1 sec, lbf	Pedal Effort at 0.2 sec, lbf	Peak Effort, lbf	Effort Class
Dry Surface, 10/12/99
1	152.15	100.79	140.49	184.33	A
2	155.35	81.88	132.59	194.31	B
3	158.19	99.96	144.43	168.75	A
4	158.09	130.1	178.72	192.23	A
5	155.63	77.11	136.75	181.01	B
6	156.19	79.6	120.95	167.08	B
7	157.61	121.99	169.58	200.13	A
8	158.13	34.09	111.6	156.07	D
9	154.37	80.64	101.83	160.23	B
10	156.09	100.79	171.24	194.1	A

AVG	156.18
STD DEV	1.945142
95%	158.163
Wet Surface, 10/7/99
1	171.17	56.12	153.37	210.31	C
2	177.45	11.23	137.58	230.67	D
3	172.25	113.89	203.66	257.06	A
4	169.83	79.81	188.28	213.42	B
5	166.67	139.24	176.85	234.83	A
6	174.45	92.27	141.73	186.83	B
7	169.9	83.55	189.11	237.32	B
8	173.25	156.9	203.45	269.53	A
9	170.38	138.62	209.48	252.91	A
10	179.48	25.36	70.25	156.07	D
11	178.75	3.96	64.01	221.32	D

AVG	173.0527
STD DEV	4.092596
95%	179.115

TABLE E-3. STOPPING DISTANCE RESULTS FORD F150, FIRST ROUND OF TESTING
Stop No.	Stopping Distance, ft	Pedal Effort at 0.1 sec, lbf	Pedal Effort at 0.2 sec, lbf	Peak Effort, lbf	Effort Class
Dry Surface, 10/5/99
1	158.01	68.37	104.53	159.39	C
2	159.32	74.6	106.81	163.13	B
3	158.71	86.03	157.93	166.87	B
4	158.65	91.02	138.81	183.7	B
5	161.22	103.9	125.51	152.94	A
6	161.75	69.82	133.41	193.26	B
7	160.69	105.15	161.67	171.65	A
8	156.36	101.41	153.98	158.55	A
9	155.39	82.71	167.28	185.78	B
10	158.86	60.89	101.62	151.07	C
11	158.53	100.16	153.36	172.27	A

AVG	158.8627
STD DEV	1.914968
95%	161.485
Wet Surface, 10/5/99
1	166.99	87.07	195.96	221.31	B
2	167.86	73.15	173.31	211.13	B
3	172.43	118.66	193.88	266.82	A
4	167.66	134.03	243.34	283.86	A
5	170.02	151.07	207.18	216.95	A
6	169.44	104.94	158.35	175.8	A
7	169.4	92.89	158.14	184.11	B
8	162.73	136.94	197.21	218.61	A
9	161.13	124.06	238.77	252.07	A
10	160.16	150.03	239.81	259.96	A

AVG	166.782
STD DEV	4.089205
95%	171.3455

TABLE E-4. STOPPING DISTANCE RESULTS CHEVROLET MALIBU, FIRST ROUND OF TESTING
Stop No.	Stopping Distance, ft	Pedal Effort at 0.1 sec, lbf	Pedal Effort at 0.2 sec, lbf	Peak Effort, lbf	Effort Class
Dry Surface, 10/6/99
1	142.36	64.66	87.97	93.91	D
2	150.43	38.37	56.39	121.47	D
3	146.87	63.17	95.61	153.9	D
4	146.43	67.84	97.94	177.64	D
5	146	89.46	111.93	163.44	B
6	148.06	88.19	132.92	184	B
7	146.03	74.83	108.54	157.51	B
8	147.38	39.01	56.81	126.56	D
9	145.9	41.97	58.93	144.57	D
10	145.03	63.17	96.67	160.26	D
11	147.2	59.99	99.42	143.3	C
12	145.59	85.22	107.27	128.46	B
13	144.52	122.32	156.66	162.81	A

AVG	146.2923
STD DEV	1.906214
95%	149.008
Wet Surface, 10/5/99
1	144.64	114.26	142.24	185.49	A
2	149.13	98.36	172.77	237.64	B
3	146.1	170.86	227.04	257.78	A
4	143.94	112.56	134.4	139.27	A
5	146.18	90.73	134.82	151.99	B
6	143.43	85.85	124.44	162.59	B
7	146.15	124.65	171.71	217.71	A
8	143.28	116.38	174.89	174.89	A
9	139.55	115.32	142.88	163.65	A
10	141.17	100.69	161.96	240.39	A
11	148.36	56.6	111.29	195.24	C

AVG	144.7209
STD DEV	2.871628
95%	148.745

Figure E-1. Brake pedal application efforts for Chevrolet Astro, first test round.

Figure E-2. Brake pedal application efforts for Chevrolet blazer, first test round.

Figure E-3. Brake pedal application efforts for Ford F150, first test round.

Figure E-4. Brake pedal application efforts for Chevrolet Malibu, first test round.

TABLE E-5. FRONT BRAKE LINING TEMPERATURES CHEVROLET ASTRO, FIRST ROUND OF TESTING
	Dry Surface, 10/7/99				Wet Surface, 10/7/99
Stop No.	LFO	LFI	RFO	RFI	LFO	LFI	RFO	RFI
1	180	174	199	172	184	149	175	158
2	193	170	202	175	202	175	199	176
3	197	172	201	175	202	174	195	172
4	182	156	182	158	204	177	189	170
5	203	176	200	176	202	173	190	167
6	201	176	201	176	199	170	188	166
7	194	167	185	161	205	175	199	176
8	193	164	189	165	203	174	197	175
9	200	170	197	171	203	172	201	176
10	203	175	199	175	203	174	196	175

TABLE E-6. FRONT BRAKE LINING TEMPERATURES CHEVROLET BLAZER, FIRST ROUND OF TESTING
	Dry Surface, 10/12/99				Wet Surface, 10/7/99
Stop No.	LFO	LFI	RFO	RFI	LFO	LFI	RFO	RFI
1	172	180	193	197	176	200	200	217
2	194	204	200	204	183	191	188	194
3	200	207	197	200	189	199	198	206
4	200	205	195	198	193	203	202	210
5	200	203	191	194	193	196	193	195
6	201	205	197	200	195	201	196	200
7	200	202	195	198	199	203	198	203
8	199	201	197	201	200	203	201	207
9	198	199	196	199	192	194	191	196
10	196	197	196	200	195	201	197	204
11	-	-	-	-	199	206	201	209

LFO = Left Front Outer.
LFI = Left Front Inner.
RFO = Right Front Outer.
RFI = Right Front Inner.

TABLE E-7. FRONT BRAKE LINING TEMPERATURES FORD F150, FIRST ROUND OF TESTING
	Dry Surface, 10/5/99				Wet Surface, 10/5/99
Stop No.	LFO	LFI	RFO	RFI	LFO	LFI	RFO	RFI
1	163	162	167	168	171	176	164	168
2	213	210	216	214	202	203	202	202
3	204	202	204	206	204	203	207	209
4	198	197	200	203	201	200	205	207
5	192	189	195	197	196	195	206	208
6	190	187	195	196	195	194	204	205
7	191	189	198	199	196	194	204	204
8	191	190	200	201	191	189	197	198
9	193	191	200	202	194	191	199	199
10	194	192	202	203	192	188	197	195
11	146	148	143	147	172	167	176	176

TABLE E-8. FRONT BRAKE LINING TEMPERATURES CHEVROLET MALIBU, FIRST ROUND OF TESTING
	Dry Surface, 10/6/99				Wet Surface, 10/5/99
Stop No.	LFO	LFI	RFO	RFI	LFO	LFI	RFO	RFI
1	208	178	192	175	162	144	152	145
2	191	169	181	170	160	142	153	145
3	202	179	189	177	192	174	183	171
4	201	182	189	179	197	178	189	179
5	203	185	193	184	200	183	193	183
6	202	184	194	185	195	180	188	179
7	204	186	197	190	205	185	198	183
8	200	180	193	185	206	190	198	186
9	203	184	196	188	208	192	197	186
10	208	189	199	190	206	189	195	186
11	208	189	202	190	213	183	201	172
12	202	183	193	185	-	-	-	-
13	204	186	195	187	-	-	-	-

LFO = Left Front Outer.
LFI = Left Front Inner.
RFO = Right Front Outer.
RFI = Right Front Inner.

TABLE E-9. BRAKE COOLDOWN SEGMENTS FIRST TEST ROUND, DRY PAVEMENT (DISTANCE ACCUMULATED, MI AND ELAPSED TIME, SEC)
Ford F150			Chevy Blazer
Stop No.	Distance	Time	Stop No.	Distance	Time
1	1.2	186	1	1.69	256
2	1.8	275	2	1.73	292
3	1.73	269	3	1.71	321
4	1.86	271	4	1.7	331
5	1.57	221	5	1.74	322
6	1.66	251	6	2	289
7	1.51	229	7	2	305
8	1.67	258	8	1.96	301
9	1.77	244	9	1.91	298
10	ND	ND	10	2.03	283
11	ND	ND


AVG	1.641111	244.8889	AVG	1.847	299.8
STD DEV	0.198648	28.87665	STD DEV	0.144226	21.9231

Chevy Malibu			Chevy Astro Van
Stop No.	Distance	Time	Stop No.	Distance	Time
1	1.46	241	1	1.36	229
2	1.41	199	2	1.38	233
3	1.32	224	3	1.84	329
4	1.34	221	4	1.46	238
5	1.51	218	5	1.56	266
6	1.04	275	6	1.69	310
7	1.9	196	7	1.57	299
8	1.38	207	8	1.43	266
9	1.53	222	9	1.48	292
11	1.57	220	10	1.74	297
12	1.54	210
13	1.66	220

AVG	1.471667	221.0833	AVG	1.551	275.9
STD DEV	0.208276	20.80847	STD DEV	0.160793	34.78969

ND=No Data Collected

TABLE E-10. BRAKE COOLDOWN SEGMENTS FIRST TEST ROUND, WET PAVEMENT (DISTANCE ACCUMULATED, MI AND ELAPSED TIME, SEC)
Ford F150			Chevy Blazer
Stop No.	Distance	Time	Stop No.	Distance	Time
1	1.25	203	1	1.68	277
2	1.6	280	2	1.51	233
3	1.62	271	3	1.53	239
4	1.69	281	5	1.54	263
5	1.69	280	6	1.78	274
6	1.64	246	7	1.68	295
7	1.87	290	8	1.78	319
8	1.84	280	9	1.55	285
9	1.58	252	10	1.79	278
10	ND	ND	4	ND	ND
			11	ND	ND

AVG	1.642222	264.7778	AVG	1.648889	273.6667
STD DEV	0.17873	27.30741	STD DEV	0.117945	26.54713

Chevy Malibu			Chevy Astro Van
Stop No.	Distance	Time	Stop No.	Distance	Time
1	0.95	169	1	1.4	203
3	0.82	169	2	1.47	254
4	1.12	208	3	1.45	264
5	1.43	219	4	1.51	287
6	1.6	200	5	1.65	269
7	1.54	214	6	1.58	259
8	1.46	255	7	1.58	297
9	1.31	265	8	1.53	281
10	1.35	258	9	1.47	291
2	ND	ND	10	1.84	342
11	ND	ND

AVG	1.286667	217.4444	AVG	1.548	274.7
STD DEV	0.268421	36.08709	STD DEV	0.126122	35.66215

ND=No Data Collected

TABLE E-11. ATMOSPHERIC CONDITIONS, FIRST TEST ROUND
	Time,	Avg Wd	Avg Wd	Peak Wd	Avg		Pressure,	Tot
Date	EST	Direction	Spd, mph	Spd, mph	Temp, ^oF	RH, %	Hg	Precip, in.
10/5/1999	11:00	349	5.3	13.4	52.3	66	30.08	0
10/5/1999	11:15	330	7.3	12.5	52.0	66	30.05	0
10/5/1999	11:30	344	6.6	13.4	52.0	65	30.06	0
10/5/1999	11:45	345	7.6	13.2	53.4	63	30.05	0
10/5/1999	12:00	344	7.7	16.7	52.5	64	30.04	0
10/5/1999	12:15	325	9.0	16.5	53.6	61	30.08	0
10/5/1999	12:30	337	7.1	15.7	52.6	64	30.06	0
10/5/1999	12:45	324	5.3	9.0	52.5	66	30.07	0
10/5/1999	13:00	336	5.3	13.0	52.7	66	30.07	0
10/5/1999	13:15	356	6.8	13.7	52.2	64	30.06	0
10/5/1999	13:30	340	5.6	9.6	52.0	65	30.05	0
10/5/1999	13:45	334	5.1	10.1	52.2	64	30.06	0
10/5/1999	14:00	344	5.5	12.4	52.0	62	30.06	0
10/5/1999	14:15	336	6.4	14.3	52.3	60	30.06	0
10/5/1999	14:30	351	6.7	14.3	52.4	61	30.06	0
10/5/1999	14:45	357	5.8	13.6	52.6	60	30.06	0
10/5/1999	15:00	356	6.3	11.8	52.6	59	30.06	0
10/5/1999	15:15	8	6.2	11.5	52.6	60	30.05	0
10/5/1999	15:30	356	5.2	11.9	52.7	59	30.05	0

10/6/1999	09:00	254	7.6	11.2	52.4	77	30.09	0
10/6/1999	09:15	255	8.9	12.9	53.1	74	30.09	0
10/6/1999	09:30	249	9.1	13.4	54.2	71	30.09	0
10/6/1999	09:45	250	9.8	13.5	55.2	69	30.09	0
10/6/1999	10:00	253	9.2	15.7	56.5	69	30.09	0
10/6/1999	10:15	231	8.6	12.7	57.8	68	30.08	0
10/6/1999	10:30	228	8.2	13.8	58.4	66	30.08	0

10/7/1999	09:00	6	7.2	13.4	46.7	57	30.38	0
10/7/1999	09:15	356	6.0	11.1	47.4	57	30.39	0
10/7/1999	09:30	0	5.9	10.7	48.2	57	30.39	0
10/7/1999	09:45	10	6.7	11.8	48.6	53	30.39	0
10/7/1999	10:00	26	7.2	13.4	48.6	52	30.39	0

TABLE E-11 (CONT'D)
	Time,	Avg Wd	Avg Wd	Peak Wd	Avg		Pressure,	Tot
Date	EST	Direction	Spd, mph	Spd, mph	Temp, ^oF	RH, %	Hg	Precip, in.
10/7/1999	10:15	22	7.1	12.3	48.9	51	30.39	0
10/7/1999	10:30	30	7.1	10.9	49.5	51	30.39	0
10/7/1999	10:45	18	7.4	13.2	49.4	50	30.38	0
10/7/1999	11:00	24	5.3	12.4	50.2	50	30.38	0
10/7/1999	11:15	5	4.0	11.4	50.4	48	30.38	0
10/7/1999	11:30	12	6.1	12.9	51.0	48	30.38	0
10/7/1999	11:45	332	6.0	11.9	51.3	46	30.38	0
10/7/1999	12:00	0	5.7	11.4	51.8	47	30.38	0
10/7/1999	12:15	352	6.6	11.4	52.3	45	30.36	0
10/7/1999	12:30	349	4.8	10.8	52.4	46	30.36	0
10/7/1999	12:45	8	5.9	10.2	53.0	45	30.36	0
10/7/1999	13:00	1	6.0	11.7	53.0	45	30.34	0
10/7/1999	13:15	20	5.6	12.8	53.7	46	30.35	0
10/7/1999	13:30	56	5.1	9.8	53.7	44	30.34	0
10/7/1999	13:45	43	6.9	11.1	54.0	43	30.33	0
10/7/1999	14:00	26	4.9	11.2	54.2	43	30.33	0
10/7/1999	14:15	11	5.1	9.2	54.7	44	30.32	0
10/7/1999	14:30	22	4.6	10.7	54.8	45	30.30	0
10/7/1999	14:45	57	3.8	7.7	55.4	43	30.30	0
10/7/1999	15:00	358	5.2	8.5	55.1	40	30.32	0
10/7/1999	15:15	40	2.3	6.6	55.5	39	30.33	0
10/7/1999	15:30	325	3.1	5.3	55.2	40	30.34	0

10/12/1999	07:00	199	0.5	1.0	43.9	96	30.31	0
10/12/1999	07:15	194	0.4	0.8	46.0	94	30.32	0
10/12/1999	07:30	53	0.3	1.4	49.2	90	30.33	0
10/12/1999	07:45	119	1.2	2.3	51.5	82	30.33	0
10/12/1999	08:00	87	2.1	3.4	53.1	77	30.34	0
10/12/1999	08:15	46	1.5	3.7	55.4	70	30.34	0
10/12/1999	08:30	48	2.1	4.2	56.8	66	30.35	0
10/12/1999	08:45	54	4.1	8.3	57.7	63	30.35	0
10/12/1999	09:00	43	5.6	8.5	58.4	58	30.34	0
10/15/1999	12:00	133	4.0	7.5	57.7	43	30.29	0
10/15/1999	12:15	147	3.4	7.1	58.2	41	30.28	0
10/15/1999	12:30	183	2.6	8.1	58.9	39	30.27	0
10/15/1999	12:45	145	3.7	8.3	59.1	40	30.26	0
10/15/1999	13:00	149	5.3	9.6	59.6	41	30.25	0