APPENDIX F.   SECOND ROUND TEST DATA



TABLE F-1. STOPPING DISTANCE RESULTS
CHEVROLET ASTRO, SECOND 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, 10/28/99
1 177.15 132.49 73.77 171.92 A
2 174.51 151.15 165.35 203.29 A
3 179.07 141.61 196.72 220.25 A
4 181.64 153.27 177.86 241.03 A
5 179.47 141.61 167.68 232.76 A
6 177.62 111.29 151.99 210.71 A
7 178.56 126.77 195.24 232.97 A
8 177.12 138.85 193.33 275.79 A
9 180.12 150.09 183.79 232.76 A
10 179.82 155.81 233.61 272.4 A
11 181.52 149.87 217.71 268.8 A
   
AVG 178.7818
STD DEV 2.101522
95% 181.58
Wet Surface, 10/29/99
1 201.09 146.48 94.76 188.88 A
2 196.24 135.46 205.63 241.24 A
3 187.07 148.18 116.17 198.84 A
4 194.86 144.57 165.99 191.95 A
5 189.61 157.93 175.52 202.02 A
6 195.48 132.07 158.57 175.95 A
7 192.77 156.66 165.14 212.83 A
8 191.09 156.87 188.24 227.67 A
9 190.96 175.52 180.61 215.17 A
10 191.22 131.43 166.83 190.79 A
11 193.6 130.16 169.17 196.3 A
12 188.12 127.83 199.27 215.38 A
   
AVG 192.6758
STD DEV 3.88654
95% 198.4225


TABLE F-2. STOPPING DISTANCE RESULTS
CHEVROLET BLAZER, SECOND 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, 10/28/99
2 162.9 155.86 201.79 211.35 A
3 160.47 164.59 221.94 230.26 A
4 161.36 172.7 184.33 200.75 A
5 155.73 178.72 232.34 247.5 A
6 156.43 157.11 190.98 190.98 A
7 155.07 144.23 203.45 203.45 A
8 159.9 178.31 160.23 181.84 A
9 161.45 163.14 229.43 236.7 A
10 163.04 161.68 142.77 177.68 A
11 158.44 138.82 174.77 183.92 A
   
AVG 159.479
STD DEV 2.921881
95% 162.977
Wet Surface, 10/29/99
1 169.82 167.5 211.97 226.1 A
2 171.1 163.76 237.53 238.98 A
3 175.21 150.67 206.15 207.61 A
4 182.65 148.8 204.7 225.48 A
5 167.29 149.42 212.8 217.37 A
6 169.93 140.49 206.36 213.42 A
7 167.65 163.34 184.33 184.75 A
8 164.83 140.69 195.35 201.79 A
9 167.79 145.89 194.31 194.31 A
10 171.98 148.8 175.19 180.8 A
11 163.36 147.97 196.8 196.8 A
   
AVG 170.1464
STD DEV 5.297809
95% 178.93


TABLE F-3. STOPPING DISTANCE RESULTS
FORD F150, SECOND 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, 10/28/99
2 157.14 151.08 246.88 261.84 A
3 159.83 144.43 261.43 312.96 A
4 156.95 159.6 261.22 292.39 A
5 155.22 168.75 253.74 259.77 A
6 156.63 145.47 237.11 243.14 A
7 158.23 144.85 223.19 224.85 A
8 158.86 159.19 244.6 247.92 A
9 155.72 151.08 242.93 242.93 A
10 159.87 160.23 223.61 228.39 A
11 159.25 163.76 217.37 218.62 A
   
AVG 157.77
STD DEV 1.67722
95% 159.852
Wet Surface, 10/29/99
1 166.46 171.66 273.48 311.72 A
2 163.47 199.29 241.69 252.08 A
3 162.35 166.05 240.23 240.23 A
4 163.16 154.62 210.93 220.28 A
5 164.61 155.86 222.15 227.14 A
6 166.2 167.5 231.5 237.11 A
7 164.57 148.8 198.67 209.48 A
8 162.58 154.82 241.69 247.09 A
9 165.74 175.4 213.01 215.71 A
10 165.23 181.01 232.96 234.21 A
11 162.53 176.64 227.35 228.8 A
   
AVG 164.2636
STD DEV 1.524823
95% 166.33


TABLE F-4. STOPPING DISTANCE RESULTS
CHEVROLET MALIBU, SECOND 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, 10/28/99
1 151.53 182.73 191.21 206.69 A
2 144.42 158.57 203.93 203.93 A
3 140.66 218.77 250.57 260.74 A
4 143.57 187.4 237.21 237.21 A
5 140 177.22 200.96 201.17 A
6 144.99 156.87 198.21 203.29 A
7 144.58 179.55 195.88 210.93 A
8 143.87 167.89 186.55 192.48 A
9 143.53 184.43 281.94 281.94 A
10 143.9 161.75 184.22 186.12 A
11 138.93 165.35 178.07 184.22 A
12 140.46 184.22 192.27 202.45 A
   
AVG 143.37
STD DEV 3.292634
95% 147.933
Wet Surface, 10/29/99
1 153.49 118.29 135.67 158.35 A
2 154.18 173.19 195.88 195.88 A
3 151.8 154.54 211.77 211.77 A
4 152.17 157.72 189.94 201.81 A
5 153.29 161.11 190.79 194.18 A
6 153.1 149.45 204.57 204.57 A
7 155.93 165.99 170.44 170.86 A
8 152.6 155.17 204.78 210.29 A
9 149.7 142.45 182.73 182.73 A
10 151.53 154.54 216.23 216.23 A
11 154.02 147.12 184.22 187.82 A
   
AVG 152.8918
STD DEV 1.629815
95% 155.055




Figure F-1. Brake pedal application efforts for Chevrolet Astro, second test round.



Figure F-2. Brake pedal application efforts for Chevrolet Blazer, second test round.



Figure F-3. Brake pedal application efforts for Ford F150, second test round.



Figure F-4. Brake pedal application efforts for Chevrolet Malibu, second test round.



TABLE F-5. FRONT BRAKE LINING TEMPERATURES
CHEVROLET ASTRO, SECOND ROUND OF TESTING
  Dry Surface, 10/28/99 Wet Surface, 10/29/99
Stop No. LFO LFI RFO RFI LFO LFI RFO RFI
1 174 152 174 157 169 139 159 151
2 182 165 178 166 200 169 201 178
3 191 164 183 169 178 146 163 155
4 201 170 188 174 176 157 170 168
5 200 168 186 173 191 160 178 168
6 190 151 179 164 158 165 177 173
7 199 169 187 175 195 160 158 170
8 205 171 183 178 194 173 179 175
9 206 170 188 181 205 169 173 176
10 209 177 190 179 179 172 170 178
11 211 178 195 183 208 174 178 181
12 210 177 187 184 210 172 184 178
13 - - - - 211 174 183 180


TABLE F-6. FRONT BRAKE LINING TEMPERATURES
CHEVROLET BLAZER, SECOND ROUND OF TESTING
  Dry Surface, 10/28/99 Wet Surface, 10/29/99
Stop No. LFO LFI RFO RFI LFO LFI RFO RFI
1 215 220 230 248 193 199 199 89
2 184 182 192 198 197 195 188 200
3 197 195 206 217 197 195 186 195
4 182 176 199 207 201 199 189 198
5 181 177 197 204 201 197 194 204
6 170 167 177 184 202 197 195 207
7 200 199 209 219 207 204 204 215
8 190 186 196 204 206 203 203 212
9 207 205 205 215 192 186 189 197
10 192 188 189 198 199 196 197 206
11 191 187 185 194 196 191 193 201

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


TABLE F-7. FRONT BRAKE LINING TEMPERATURES
FORD F150, SECOND ROUND OF TESTING
  Dry Surface, 10/28/99 Wet Surface, 10/29/99
Stop No. LFO LFI RFO RFI LFO LFI RFO RFI
1 249 241 251 248 215 204 212 206
2 207 200 213 214 179 168 178 176
3 202 193 209 210 191 179 192 188
4 205 193 211 210 195 182 196 192
5 200 189 207 206 197 184 200 197
6 195 183 201 200 198 185 201 198
7 191 179 197 196 201 187 205 200
8 192 179 197 196 197 183 203 199
9 205 193 211 208 195 181 203 199
10 193 181 198 196 193 180 204 199
11 203 191 212 209 191 178 204 200


TABLE F-8. FRONT BRAKE LINING TEMPERATURES
CHEVROLET MALIBU, SECOND ROUND OF TESTING
  Dry Surface, 10/28/99 Wet Surface, 10/29/99
Stop No. LFO LFI RFO RFI LFO LFI RFO RFI
1 210 170 182 160 226 198 209 193
2 163 136 152 138 197 174 185 171
3 162 136 149 135 192 172 177 165
4 185 156 170 155 194 175 179 168
5 191 164 175 160 196 175 180 168
6 189 166 170 156 196 176 182 171
7 191 168 171 157 180 160 172 164
8 195 171 172 158 188 169 176 172
9 195 173 171 158 197 172 185 174
10 197 174 173 159 194 170 182 173
11 196 173 174 159 196 172 186 176
12 196 175 174 160 194 172 185 175

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


TABLE F-9. BRAKE COOLDOWN SEGMENTS
SECOND TEST ROUND, DRY PAVEMENT
(DISTANCE ACCUMULATED, MI AND ELAPSED TIME, SEC)
Ford F150              Chevy Blazer
Stop No. Distance Time              Stop No. Distance Time
1 5.36 374   1 3.82 291
2 4.23 319   2 3.05 241
3 4.24 313   3 3.84 310
4 4.23 311   4 3.89 294
5 3.75 285   5 3.62 276
6 3.45 264   6 3.07 233
7 3.46 258   7 3.87 298
8 3.13 243   8 3.13 242
9 3.64 276   9 3.54 279
10 3.12 250   10 3.39 265
11 ND ND   11 3.2 261
             
AVG 3.861 289.3   AVG 3.492727 271.8182
STD DEV 0.678011 40.26592   STD DEV 0.338942 25.6547
 
Chevy Malibu   Chevy Astro Van
Stop No. Distance Time   Stop No. Distance Time
1 ND ND   1 2.49 196
2 1.93 150   2 2.49 220
3 1.44 118   3 2.8 217
4 1.57 119   4 2.73 212
5 1.58 129   5 2.85 213
6 1.64 128   6 2.96 236
7 1.69 132   7 3.03 232
8 1.68 130   8 3.06 236
9 1.7 127   9 3.22 234
10 1.72 136   10 3.17 241
11 1.73 134   11 ND ND
             
AVG 1.668 130.3   AVG 2.88 223.7
STD DEV 0.127785 9.031427   STD DEV 0.257121 14.35309
ND=No Data Collected


2.56
TABLE F-10. BRAKE COOLDOWN SEGMENTS
SECOND TEST ROUND, WET PAVEMENT
(DISTANCE ACCUMULATED, MI AND ELAPSED TIME, SEC)
Ford F150             Chevy Blazer
Stop No. Distance Time   Stop No. Distance Time
1 3.98 321   1 2.56 219
2 2.62 203   2 3.4 273
3 2.69 203   3 3.65 305
4 2.83 211   4 3.97 312
5 2.89 218   5 4.07 320
6 2.97 219   6 4.29 329
7 2.95 226   7 4.29 336
8 2.97 219   8 3.48 287
9 2.93 228   9 3.8 313
10 2.93 225   10 3.64 296
11 2.81 226   11 ND ND
             
AVG 2.960909 227.1818   AVG 3.715 299
STD DEV 0.357112 32.34136   STD DEV 0.511843 33.89526
 
Chevy Malibu   Chevy Astro Van
Stop No. Distance Time   Stop No. Distance Time
1 196   1 1.68 169
2 2.45 203   2 2.23 196
3 2.36 193   3 2.27 212
4 2.4 183   4 2.44 205
5 2.47 186   5 2.83 265
6 2.58 205   6 3.09 232
7 2.51 191   7 3.04 234
8 2.33 194   8 3 229
9 2.52 197   9 3.16 233
10 2.38 189   10 3.15 245
11 ND ND   11 3.22 243
        12 3.09 239
             
AVG 2.456 193.7   AVG 2.766667 225.1667
STD DEV 0.086564 6.945022   STD DEV 0.492827 25.71817
ND=No Data Collected


TABLE F-11. ATMOSPHERIC CONDITIONS, SECOND TEST ROUND
Date Time
EST		 Avg Wd
Direction		 Min Wd
Spd, mph		 Max Wd
Spd, mph		 Avg
Temp, oF		 RH, % Pressure,
Hg		 Tot
Precip, in.
10/28/99 7:00 159 3 5 39 84 29.22 0
10/28/99 7:30 163 3 6 39 84 29.22 0
10/28/99 8:00 161 4 7 40 80 29.23 0
10/28/99 8:30 147 5 8 44 73 29.23 0
10/28/99 9:00 145 4 8 46 69 29.22 0
10/28/99 9:30 212 5 8 64 54 29.21 0
10/28/99 10:00 199 4 9 64 40 29.21 0
10/28/99 10:30 196 5 11 64 29 29.21 0
10/28/99 11:00 183 9 13 65 29 29.21 0
10/28/99 11:30 198 9 14 67 30 29.2 0
10/28/99 12:00 182 9 13 67 32 29.19 0
10/28/99 12:30 196 8 13 69 32 29.17 0
10/28/99 13:00 187 9 14 70 32 29.16 0
10/28/99 13:30 209 8 12 71 32 29.15 0
10/28/99 14:00 175 9 14 73 32 29.14 0
10/28/99 14:30 206 7 10 73 32 29.14 0
10/28/99 15:00 196 5 15 75 32 29.14 0
10/28/99 15:30 204 6 10 75 33 29.14 0
10/28/99 16:00 213 4 8 75 33 29.14 0
10/28/99 16:30 190 5 7 74 35 29.14 0
10/28/99 17:00 191 5 6 73 39 29.14 0
10/28/99 17:30 150 3 7 71 39 29.14 0
10/28/99 18:00 155 5 7 68 43 29.15 0
                 
10/29/99 7:00 149 4 6 50 76 29.15 0
10/29/99 7:30 154 3 4 49 76 29.27 0
10/29/99 8:00 157 4 7 48 78 29.22 0
10/29/99 8:30 146 2 4 51 74 29.23 0
10/29/99 9:00 146 3 4 57 48 29.24 0
10/29/99 9:30 181 2 7 64 49 29.24 0
10/29/99 10:00 186 3 6 65 49 29.24 0
10/29/99 10:30 197 4 7 68 46 29.24 0

10/29/99 11:00 174 4 8 71 42 29.23 0
10/29/99 11:30 184 6 8 72 41 29.23 0
10/29/99 12:00 179 5 10 74 38 29.23 0
10/29/99 12:30 199 4 8 74 37 29.2 0
10/29/99 13:00 208 6 9 74 34 29.19 0
10/29/99 13:30 223 7 10 75 34 29.19 0
10/29/99 14:00 212 6 9 75 34 29.18 0
10/29/99 14:30 188 7 11 76 35 29.18 0
10/29/99 15:00 191 5 12 76 35 29.18 0
10/29/99 15:30 160 9 15 76 34 29.18 0
10/29/99 16:00 185 7 10 75 35 29.19 0