Table 1.
Dosimetry measures for 51 BART line segments with two or more measures
| Segment | N | Duration | Leq (dBA) | Lpeak (dB) | Lmax (dBA) |
|---|---|---|---|---|---|
| 12th St–19th St | 6 | 64 (3.4) | 88 (4.1) 93 | 77 (8) 82 | 109 (4.2) 118 |
| 12th St–West Oakland | 5 | 264 (51.3) | 84 (2.9) 89 | 69 (7.4) 80 | 111 (0.7) 112 |
| 16th St–24th St | 6 | 101 (2.1) | 92 (0.7) 93 | 82 (1.2) 83 | 114 (0.7) 115 |
| 16th St–Civic Center | 8 | 119 (7.8) | 94 (1.5) 96 | 87 (1.7) 90 | 119 (10.6) 140 |
| 19th St–12th St | 5 | 65 (8.3) | 87 (3) 90 | 79 (3.3) 82 | 110 (1.7) 111 |
| 19th St–MacArthur | 7 | 222 (104.1) | 91 (2.1) 94 | 79 (2.7) 82 | 116 (0.9) 117 |
| 24th St–16th St | 10 | 103 (7.5) | 92 (1.7) 95 | 86 (2) 90 | 115 (2.6) 120 |
| 24th St–Glen Park | 4 | 143 (4) | 93 (0.7) 93 | 84 (0.6) 85 | 111 (0.7) 112 |
| Ashby–MacArthur | 5 | 167 (5.9) | 95 (1.4) 97 | 82 (1.4) 84 | 113 (0.9) 114 |
| Ashby–Berkeley | 6 | 127 (8.3) | 98 (1.9) 101 | 90 (1.9) 93 | 113 (1.7) 115 |
| Balboa Park–Daly City | 4 | 216 (54.8) | 92 (1) 94 | 80 (2.5) 83 | 115 (1.3) 116 |
| Balboa Park–Glen Park | 4 | 117 (3.3) | 97 (1.1) 98 | 91 (1.2) 92 | 115 (1.3) 116 |
| Bay Fair–Hayward | 2 | 218 (2.8) | 87 (2.5) 89 | 77 (3) 79 | 113 (1.5) 114 |
| Bay Fair–San Leandro | 2 | 272 (81.3) | 91 (9.6) 97 | 73 (3) 75 | 129 (25.9) 147 |
| Civic Center–16th St | 8 | 117 (2) | 92 (1.9) 94 | 86 (1.6) 88 | 111 (1.7) 114 |
| Civic Center–Powell | 10 | 70 (3.9) | 89 (3) 94 | 78 (2.8) 82 | 111 (1.5) 114 |
| Coliseum–Fruitvale | 2 | 173 (5.7) | 84 (1.5) 85 | 68 (5.2) 72 | 110 (3) 112 |
| Coliseum–San Leandro | 3 | 221 (4) | 90 (2.4) 93 | 79 (1.8) 80 | 111 (1.6) 113 |
| Colma–Daly City | 4 | 187 (16.1) | 93 (1) 94 | 81 (1.7) 83 | 112 (1.2) 114 |
| Colma–South San Francisco | 4 | 156 (4.8) | 89 (1.2) 90 | 78 (2) 80 | 111 (1.4) 113 |
| Daly City–Balboa Park | 4 | 183 (5.4) | 91 (2.8) 93 | 80 (3.8) 83 | 114 (1.4) 115 |
| Daly City–Colma | 4 | 216 (5.4) | 84 (1.6) 86 | 73 (3.7) 77 | 112 (1.1) 113 |
| Berkeley–Ashby | 3 | 118 (3.1) | 94 (1.6) 95 | 86 (1.7) 87 | 112 (2.7) 115 |
| Berkeley–North Berkeley | 5 | 124 (0.7) | 88 (2.3) 91 | 81 (2.3) 85 | 113 (1.7) 115 |
| Embarcadero–Montgomery | 8 | 59 (1.4) | 89 (1.5) 91 | 82 (1.1) 84 | 114 (1.4) 116 |
| Embarcadero–West Oakland | 10 | 394 (9.5) | 97 (1.8) 100 | 87 (1.1) 89 | 114 (1.3) 117 |
| Fruitvale–Coliseum | 3 | 172 (8.1) | 92 (1.2) 93 | 82 (0.7) 83 | 114 (1.3) 114 |
| Fruitvale–Lake Merritt | 2 | 234 (2.1) | 94 (3.7) 96 | 82 (1.7) 83 | 112 (1.2) 113 |
| Glen Park–24th St | 4 | 139 (3.5) | 96 (0.7) 96 | 86 (0.8) 87 | 115 (1) 116 |
| Glen Park–Balboa Park | 4 | 120 (7.8) | 95 (1.1) 96 | 87 (0.8) 88 | 113 (1.1) 114 |
| Hayward–Bay Fair | 2 | 219 (9.2) | 85 (2.5) 87 | 74 (3.4) 76 | 112 (2.6) 114 |
| Lake Merritt–12th St | 2 | 154 (2.1) | 81 (0.1) 81 | 62 (0.7) 63 | 111 (2.4) 113 |
| Lake Merritt–Fruitvale | 3 | 207 (3.8) | 95 (1.4) 97 | 83 (0.8) 84 | 116 (3.7) 120 |
| Lake Merritt–West Oakland | 2 | 317 (39.6) | 85 (0.7) 85 | 68 (5.7) 72 | 111 (0.6) 112 |
| MacArthur–19th St | 6 | 179 (28.3) | 90 (1.6) 93 | 80 (1.9) 84 | 116 (1.2) 118 |
| MacArthur–Ashby | 5 | 180 (16.3) | 87 (2.3) 89 | 75 (3.4) 79 | 109 (1.7) 111 |
| MacArthur–Rockridge | 2 | 116 (5.7) | 83 (3) 85 | 66 (3.5) 69 | 117 (7.2) 122 |
| Millbrae–San Bruno | 4 | 490 (300.7) | 91 (1.1) 92 | 79 (2.1) 81 | 113 (0.4) 113 |
| Montgomery–Embarcadero | 8 | 65 (7.4) | 89 (2.2) 93 | 81 (3) 84 | 113 (1.4) 115 |
| Montgomery–Powell | 8 | 66 (3.9) | 84 (2.3) 88 | 73 (4.5) 80 | 106 (1.4) 108 |
| North Berkeley–Berkeley | 4 | 134 (20.1) | 90 (0.5) 90 | 82 (1.4) 84 | 120 (15.4) 143 |
| Powell–Civic Center | 8 | 75 (10) | 87 (3.1) 93 | 78 (2.7) 83 | 109 (1.3) 112 |
| Powell–Montgomery | 10 | 73 (13.3) | 86 (3.7) 94 | 73 (5.6) 78 | 107 (1.9) 111 |
| San Bruno–Millbrae | 4 | 351 (111.5) | 88 (3) 92 | 76 (5) 81 | 111 (1.4) 113 |
| San Bruno–South San Francisco | 4 | 179 (8.3) | 96 (1.3) 97 | 86 (1.2) 87 | 114 (1.2) 115 |
| San Leandro–Bay Fair | 2 | 193 (2.1) | 89 (1) 90 | 81 (1.7) 82 | 116 (3.3) 118 |
| South San Francisco–Colma | 4 | 172 (16.3) | 92 (0.9) 93 | 80 (1.8) 81 | 112 (0.7) 113 |
| South San Francisco–San Bruno | 4 | 179 (9.9) | 95 (0.6) 96 | 87 (1.4) 88 | 112 (0.8) 113 |
| West Oakland–12th Street | 4 | 211 (24.7) | 86 (2) 88 | 75 (2.5) 77 | 111 (0.9) 112 |
| West Oakland–Embarcadero | 7 | 380 (15.6) | 101 (3.1) 105 | 92 (1.7) 94 | 118 (6.8) 133 |
| West Oakland–Lake Merritt | 5 | 315 (33.9) | 89 (2.1) 91 | 74 (2) 76 | 112 (2.4) 115 |
Numbers given are mean (SD) maximum. N is the number of observations made on each line