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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

  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   
  1. Line 1 = Yonge – University subway line, Line 2 = Bloor – Danforth subway line, Line 3 = Scarborough extension, Line 4 = Sheppard extension