Noise Conditions Relating to the Toronto Subway

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Noise Conditions Relating to the Toronto Subway

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A N A L Y Z E D

EPrmpwed for t)u To-b Ifrenaporbrrrtisn Comir81on

Rmeaarsh Heport l o . 89

of thr

(3)

As a , . i e ~ t a:' its n a ~ k w i t h the T Q W ~ ~ Q 5ia~tmi C

Gamnfsalon on the conat.mctim ~f t h e nr$r subway,

$he : j i v i a l s n of t~ui3,i92ng R ~ B ~ R P Q ~ ! of t h e national Hoeearoh Coonail h a t _beon_,:lad _{t o}_{a s R : i 8 t}_{w i t h}_{s t u d i s 8}

or vinra t 2 snn and sound 3r4vr to and f o l l m l n g tha a t a r t of train oparutiona. T h t ~ brief r a p a r t by UP. T. tr. Sarthw- XI, kba\jr of t l ? s iiulLdlng Phyaiam Suotion of :.ha, l a a aontributbon t o th+au atu8iem.

Ottawa

(4)

Xn t h i a w a r t It 10 p m p W te a s l a *

asclerrur.asaQa rcre.rrtAy ns.40

on $b

mmp3at.d Teraatco Sutnr a d ro &Lamram

th.u

a l g n i r i a a a e to- o f dSrtwb.9aa

b.9;

tO prraangerr

on th.

$ r m a i t ey8Wm end ta seoupeinta oi aausby

bundiaga. ¶%a two pmblmua invmt'lre ratbmr dif'iercmt aanaidem-

tieant f s a m o ~ m r r am exyored d i r * r t l y t o aiwbome ao1aeaI

w ~ m r a oaetapmtr of adjaaatt b a i l d b g a will b+ expa8ed u h l y b nos- trrurraitted thra- the 8t;l'wtuma m b threqgh g ~ ~ u m d .

It w l l l be uaefrrl, t o b a g i n w l t h a o l a a a l f i s ~ t l o n ef n a i n a slnd the faetmm whioh make t h ob@rtlonsble, Extmamly laud noiaea a m p a w and -3 et.ntu8lly

a r a r a 8 m

penammat deafmaat m l 8 e 8 a* a rorarrrhat lowr le'lrI.1 may ba objartloaahle beauare Mmy

i a t e r i e m w i t h epeeoh crgaah.iwfsrtionl nolaer a t atlP1 lowr levala

say ma* the lawer limit of

wmtd

aomdar md $hum lnf.er?en fer

exmsplr, with a m ~ a enN~"lsnt o f m r l o l f l n r l l y O a t l e v e l 8 of t b

ram0 ordar a8 l o a a l amada an i n ~ ~ l t t o n t w l a e o r r pwt1arrlarf.y i r r i t a t i n g : type o f nalae o r %n fa8t any n o i u whfroh intmd*r i n t o on+* a ronaoioumerrr, m a y 1Da ab)astim.rcb3e bscauae it aomwm4a

-

attention t b u r SnCerPoJrlng w i t h suoh qiiat p u r r a f t 8 a. xwadimg or

8leeping.

X t is a w e a t e 8 a8 8 o~itesion that w i t h h a th. mbuay

ths nolae leva1 Jsould be low m u ( C b thst p a a a q a r OM osnmmi-

eat. w i t h h i a n e u e a t nei&hbuur a t Wvo or t h m a

fmt.

Reeent mtubie8 (1) have 8bOm a qum8it8k%r, W a y O? e a t h a -

t 3 q &mu meh a gtven rmiaa t a l C e ~ ? a ~ a w i t h apeebb ~ ~ e ~ $ b n .

I t l a expmrwd by a aiat;lla a w k r a d l a d tha 8p.6.h XnteWeronba

L e a ( 3 . f .t. ) I w&ioh l a t b rverryge af t h a n a i u I e w l a f la &albela)

in the Urea o a t a n b a n d amat ot~ac.ntir3, t o thr, uadarratmdirpg a t a p e ~ o h (600 W 48QO 8.p.a.). T&e quallttatlve i1epm8s5onr raaooiated

w i t h $ha 8 p w m ~ Laterfemnoe Lava2 8- given %n Table I,

I t would 8pp.u that,

rsr,

publie Vekialer, m LmX.Lw or

55

to 70 BB. would be -ti-. A auntinuoua 8 . f . L . of' 75 Ub,

or

greobr w u l d ba undsal~eb1y aoimy~ there 18 no a d v a t & & * (orrd evam a # l i g h t d l u d v r n t a g e ) i n ur :i. * .TJ. of la@. ttrra

50

db,

(5)

¶?&la I1 81rrrrsfsa8 tb. ~ V O F J A muad l a m l r , l ~ b ~ d n . 8 8

&aw~%r wad qpaaotr Lnfmrfama- l a v a l r ebmSrurd arr tb. ?P,T,C, 3ubw8y.

ma

r r * r r l t y of t b a r a ~ a s n t r w+n, mad* in empty t r r l n r , b u t 8 fm8 n+.arar+matr lab ast%mat08 ham b+.a a? w a e h Ln);dsrrenoa 2 a m l r w i t h p m r ~ r r s p a s b a t , r r b thae date m rl.o given in ?dl. XI. A tmtd omspnentiro &ti8 for t h e

Ckiaqga S & w q and rurfeaa a u 8 , ext;raot+d

rrom

r m p r t by A m ~ w

liam.rcrh Wundetion ( 2 ) . .r+ ulmo lnd.udad,

T a b h f I I .how8 a dalealld rnlQ y s i r , i n aatevo fawqttwaay b m d 8 # far a feu Q p t 8 a l OaH8# W i s . t h e ~ u$tLk 8IAlfw data for

th. etnioago

su&rer.

1, Inria& 8&. train8 tlm &pee& XnOarianaoa k - 1

ir g r c u m l y

w i W l h %be asorptabla rrmgc. It arsmodn tba m a a g t a b l m lirrit omlr in the W O P ~ $ O e H b ( ~ $ 8 t,aPn., hi@ W N O ~ ,

olndaus) -4 tirir w l l l ba .n hfmqamt . a d bwiaf oeemmaaor.

Ot, Dra stsation p l e t i a m thr, 8pe-h I r r k r i a m w Le-1 w i l l ba wall rbow d ; b aoerptabla lirit uhun heavy b~rlrim oesrtra amd w l l l Bm @lor+ to tlu upper lidt a good psrtfoa ai &ha

ttnrr,

dua b Mth emla art¶ pmrsta-ar, R O ~ H ~ .

3. Cargprnd t o tb. Ghlarga ;Uubwap the naira limrrl8 In mr-

-

t r r i n r a m strtsat.rsl*ially bwar. I a e s l r

sa

8ht80ah

p l a f S e ~ u ar+ .I-f ly Isme on tho r v a m a .5L tfiotplth tb.

dlS?a-aa i r mtal1.1. %ham variatian8 w i t h bntPdag dmahriqum8.

Tho g a b i r parti+UaaQg r t ~ S k w i n fifP1) timum1 I ~ t l = . # 4- ia p m t o t b u80 o f abmrptLvm material @ad in pulr b tkm mmwieating epeaingr betwan tumalm Ln ti& %sloa$o ryrtmm.

5.

T'ho mu 0-8 w a urb8tmtbially quiabar thur the ald M i t t

srrr

d ~ t - t h a h lut b q r 'Y l d t m ~ t e 8%6ap* d U P w b r + & w l ,

thap a1.o appaar ecmprra1P10

78

th th. P.D.0. swm, %a Mm prottuclCioa of d r b e m m aaira.

Ttw fallow ob~rrrtiaarr are namZaP y crualitatira# .&ma t h y iavmlm r ~ i n r p ~o

"r

8.0 of tM ordar af Baakgrawd or L+arn

uhieh Qb m B m$l8$or on a mum8 lava3 mow.

-

1. Obsarratlear were mda on tbs f f f r t eva~paaa nor# of' th+ DaviariUa jamtan utb mrWeM r 3 . e tbm

r a m t

to DWsr A w .

(6)

P I A n attoapt vmr mado t o rawat t h above

rort

of obmwrGlon8 a t 8uamerbill S t a t l a n , and a taw me;o~tUag w m r r r b W awapul. YO- atreat-car. w l t h tb t ~ a n r l t ryrt8m. E l o n v o ~ , the high

l a v a 1 of rt;rr+t noim a@ S FMPIL allPOat cwplrtaly ~ b ~ ~ r d

thr rutma mi#. Horn again th. Yo- strrrat-ear8 wara thr

m a t p~oaa

I

w n t noism.

A e e r t a i n u ~ l v ~ m t o i low-pltohed rwsble ell ba pulsdueed bz tbm Butmay t ~ & l n s i n adgasant building#. JLs t& dornlParn

saetion 6bm w i l l ba ZittEa dlffo~corwa b e m e n tlnb

m

b w b r a ~

t r o i a r and tR. sld Yonp atre+S-ftarr. In fa&,

tmro

8 h e u l B k a n e t iaprwvamant dur t o t b ~ a a u a t l o n in alr-tmma nolm. Huwvor, i n tha uptom &ma, nlrna~a tha 1inw d a p a r t r fro& Yoago St-*, on, m y rnttal:srrta t h a t rsriii.n&a w h s warn net b o t b m d by Yongo

rtrsst-aars way new be dirntrmbQd by 6 t t b l ~ y r w b l o . TWO p ~ t 1 a U . U ~ sroblmr rere atudiad 1

-

{a l grro tf;wntmr 6 l t u t a d d i r u a t l y over tirr Subray turural. %&lo pmblwrn, whish $ 8 1 5 b 1 y t o bo tha an33

raw

aoriour o m , har beem ammtnaQ in b a t a i l and i r Biaeusred in a m p r r a k -port ( 3 ) .

Thir building i 8 on the eomwr of Heath rad Xeagm Str+eta

end 10 p a r t l y ovmr ths FuBrey twmaP, t.r,u.litrOive ooarybclrimmr

warn mtjO b t w a a n the net- of Y a w stre.0-oar8 an8 3ubvaf trainr, ln s moond-floor s p a r b e n t and I n t h borrraenf bnllwa

_I

.

Tho

oocrmd-Flwr eprrrt;auat wrr en tk+ norOhea st corner of he b u i l d i n g

d t ~ s r r t l y over the Subway tunnel and p e ~ t l y rhrltarad f r a a street-err noirsrs. Hare tbe %tabrug t ~ a i n war a barely d i r ~ e m l b l e mmb10,

w b r a a r atrmat-cars produoad aonrSd@rrbla noiso, aven rlth wLndow# closad, Fhs b a ~ s m n t b l l v r y warn a P e r f a + t w e t of Sabrey %Gruatura but wall r b l t a m d f % w a d i r a a t Yon* Xtraet nofr+r. T b 8uWug t r a f n r warm quit;. audible t m n , although s t m a t - o a r n a i r a was atil1 tho Ioudar.

8ert.f & . b r a t o w a x p r i w n t r

(41

i n d i e o k d that Cb. noim

yrodutrad By rtieel +h.alr r ~ n n l ~ a l m g 8-1 r a t l a dght be r i g n l f l -

o o n t l y reduuad by a p p l y i n g @uto@mBila md8rosrting b tho r a i l 8 0

2 % ~ leboretory arrrrnbamnt war from th, r a r l - l i f a irnmtallrtfan i n zaount5nt; and lsedSng aonditions, but t b affeat epprre~ob lrr&(. anou8h t o warrant tlumtmnt a f e mbrt l e n g t h o f traak i n C b 3 u b a ~ .

TMr war doam i n o t-1 raetiom just abot, St* C3afr arm. :ita$ion.

#a r l p i f i a a n t d$ffarrmoe wrr fatsgd batwoen tmsbd and untraetab r e o t i a n r o t tho tunnal, snd rasaswamontr ma& bet- and r f t a r th+ t ~ e m t m m t agroad w1Qhia mm daaible.

(7)

2, Pursm;ocr in tho Subuq w i X l f i n d lebr

talerrbry quiet crnuepb &UP- U a a-r w h r n windwr ;.rrcr

opaa, Zn tha Irttmr tam i t m y watraiondly be uagle@runtPp am%- for brier interva.28 a t A:&h rp.rrU but t h i a 6 W U d not

aonrtitutm a earfatar b.rd8hip.

3. A ~ b o m a irelm b the rtabitr a t Porrga W P W O ~ ( ~ . a r a X l y u i & l ba 8 4 p i f i o a ~ & l y rrduiorrd by $ha change-evmr l- I-$-

ear8 to t4.m Subway m d opw-sut I&..

4.

Loar f r o q u a w y noiul rrad vlbratioert. fmm Alrbwqy trahtl8 u y ba trmaslt0mB into adjneart buif&iqgr, o d %q ba oasssid.rrd obj.oQiamable aapreially l a

~ g i o a r

ulJolh war@ mot f ~ r r r s l y dirtmbmd by # m e t - e r r m . N s l ~ of tM8 t j p a can be h a l t

w t t A maly by Irola$lag t b escusr, f r o m t B Q 8truatm. In 6& aorplateQ ryatau, thL8 tr not p~lrattcsal. fimmva~, Wa fallwing; parribla pzwadlllslba a m perfir(pr wsrth nattng f a r lak21.0

LnrtrlZa$imrr

-

( a) IFtdwCiean of thr rtiff n e s s s f t b tpaek #~llllltim@ pad8 by r taokor of ko or r r e n lror arraplrr bs boubline; e&1r thltUtn8a8) would m+In r 84pWia.nt nduetlea in 8truatwa-

8 8 . 'Phi8 1. a po88ibla da~perrtllon mar- in

# n # l t l n w o b l a n r ei Btso prmwnt rjratmm. Newomr, jn&iqg by ospe~%urso in other r & w . t r . 5% would probably intrretham problem8 or mint.areheae

(8)

( & fbmnok, L.L. Spoolfsaebion of isaomptable Woirc, fssorrlr. m n a . A . S . .EL 69197-300 (I*?).

( 3 ) Aaouatio ' b r t a end f~asl&m Ihta for P ~ p ~ m a d N+.r dubila

A ~ a o u r Hawaroh +&#M~.O~(O h e $ No.

$ 6 ~ 1 1 ~

H a y o ~ t Wo. I , Jtm+

1,

195%.

(9)

t - p r n l t r euntinugrtr oonnwuaiertiant, for m s m p l m

m o b o m h arrrlnb@larrl 8

a t a h a $ thr)sr, feats, la r rrlr+d role+ a$ 6 in a

r+w

Zeud roiocr 8% 12 i-t.

(10)

(11)

(12)