BC Rapid Transit Company March 11, 2026

OMC1 Simulation Room Noise Survey - 2 - 2044.20383.2026
Contents
1 Introduction... se cseesesessssesesesseseseeeeescsceecscseneescsesecesscseeesscseseessscnesesseseeessseseeearsees 3
2 Scope Of Work ....cccecccescessssesseseeseseeseeceeeeseeseeeseeseesesecseesesseeeseeseesesesaeeseeeeaeeaeeeeeeeaes 3
3 Methodology «00... ceecsssesssecesseseeecseesceseeecseeseeseecseeseeesecsesseeeeaeeaeeaeeesaeeaeeaeeeeaeeaeeeseeeas 3
4 Regulations, Exposure Limits, and Health Effects .....0....essesesesceceseeeeeeeeeeeeeeeeee 3
4.1 8-Hour Lex Exposure Limit 00... ccceccececcessescsceseeseeseeeeeeseeeceecseeseeeeeeseeeeeeeas 5
4.2 Peak Noise Exposure Limit 0.0.0... ccsceeescsesseceseeeeeseseeeescsceeeeesceeeeeeeseeeetseee 5
4.3 Health Effects of Noise ExpOSure........ccscsscessecsseseeseeeeseeseeecseeseeeseeeseeaeeeeeees 5
5 Observations ......ceecesesseceseceeeceseececescscseeesesceceassceesesceesacscseseaceceesscaeeeeeeaceeeeescaeees 6
6 ReSUItS.... ees eeeseseseeseseseesescsceeesescseuescscseescseseescseseeacscaeesssseseesssceesassenseeessaseeeasacee 7
6.1 Spot Noise Measurements...........cccscsscecssesseeeceeceesseeeceeeseeseeeeeecseeaeeesseeseeeeeeees 7
6.2  —_ Logged Data... cssesecssssssceseseeeesesecescscseeeesesceeeessceesseacecassceeeeeessceeeeeacaeees 7
7 Discussion and Conclusions .........csssssesesseseseseeseseeeesesceceecseseeesesceeeeescseeessseseearseee 8
8 Recommendations.........cceccscsscecesseseeseesceeseesesecseeseeeseeseeeeseceeseeseeeeseeaeeaeeeeeeaeeesaeeas 8
9 Limitations .0...... ce ecesseceseesseceseseececescscecescsceccescececcscseeaesceceeesesesesaesceeeeesceeeeeecseeeeetseee 9
10 CLOSUIC ooo. eeeeeeeeeteeseseseseecesescsecescssecescscseesescseacscuesaescnseaacsesescscecaescuseeeasscueeasacneees 9
APPENDICES:

Appendix A: Photographs
Appendix B: Noise Map
Appendix C: Calibration Records

Arcose Consulting Ltd. - Environmental Health and Safety Consultants
000046