Table 5 Comparison of Subway platform noise exposures by Line, Station Design, Year Built
From: Noise exposure while commuting in Toronto - a study of personal and public transportation in Toronto
| Â | Leq on platforms (DBA) | Lmax on platforms (DBA) | Leq levels in vehicle (DBA) | Lmax levels in vehicle (DBA) |
|---|---|---|---|---|
Subway Line (number of stations) | ||||
 Line 1 (26/32) | 80.1 +/− 3.5 | 106.5 +/− 3.0 | 76.2 +/− 1.9 | 114.5 +/− 2.5 |
 Line 2 (22/28) | 82.8 +/− 2.9 | 111.3 +/− 2.9 | 75.6 +/− 1.2 | 112.1 +/− 2.3 |
 Line 3 (3/5) | 76.7 +/− 3.6 | 106.6 +/− 2.6 | 83.2 +/− 0.8 | 110.5 +/− 3.4 |
 Line 4 (2/5) | 79.9 +/− 4.3 | 105.0 +/− 1.5 | 81.2 +/− 1.0 | 112.1 +/− 0.7 |
Platform Location | ||||
 Underground (41/53) | 81.2 +/− 3.7 | 108.6 +/− 4.3 |  |  |
 Surface (8/13) | 81.2 +/− 3.9 | 107.8 +/− 4.4 |  |  |
 Elevated (3/3) | 76.7 +/− 3.6 | 106.6 +/− 2.6 |  |  |
Platform Design | ||||
 Central (17/26) | 80.0 +/− 3.7 | 107.0 +/− 5.5 |  |  |
 Side (35/43) | 81.4 +/− 3.6 | 109.0 +/− 3.3 |  |  |
Year Built | ||||
 1990–2009 (2/5) | 78.1 +/− 2.6 | 102.9 +/− 0.6 |  |  |
 1980–90 (4/7) | 76.4 +/− 3.1 | 106.4 +/− 2.2 |  |  |
 1970–79 (6/10) | 82.3 +/− 4.0 | 106.5 +/− 2.5 |  |  |
 1960–69 (27/33) | 82.8 +/− 2.6 | 111.0 +/− 2.9 |  |  |
 1950–59 (13/13) | 78.4 +/− 2.8 | 105.5 +/− 2.5 |  |  |
 1943 (1/2) | 84.5 | 105 |  |  |