Every evening, Wilmington daily commercial., 1921-06-27

IL being considered to reduce taie width
Of the Fifth avenue sidewalk by hall and
TO build either overhead or underground
sidewalks tu accommodate pedestrians.
Thr latter project, il il shown, would
simplify street traffic by giving Il about
3s per cent more spacr. II would M
crease the amount Of space available
for pedestrians, aud further, u WOULD
vastly add 20 the value Of the Fifth
Avenue business property,
With secund story or subway sitie-
walk another floor nf the store buildings
would become valuable aa ground floor
SPACE. Stores fronting on the nrw side
walks would havn entrances as cnna
venieni levels and there would be double
opportunity for window advertising
The overhead sidewalk, on the whole.
seems more desirable than the subway,
because OF Air conditions The subway
would be 4 protection against extreme
cold or heat. but The mir m a subway,
even ~hen ventilation is adequate, is
never 40 pood ns II is out OF doors,
Ventilation IL vital point 10 all s,ib-
WAYS and il il more important Ia the
proposed suhvsys for pedestrians aud
motorists thaa in the underground
strret ear systems In the sheet ear sub.
way, the swiftly moving car circulat es
the air. and too, the passenger II not IN
the subway esr long Pedestrians, on tho
Other hand, especially shoppers. might
spend an entire morning In subway
and its shops.
Tunnel Ventilation.
In planning the New York vahioular
tunnel. ventilation has been the most
serious consideration. The carbon nnn-
oxide aas released from the exhaust pipes
Of steady stream Of automobiles Isls-
sinp through the tunnel would, withnui
special precautions. render the atInus-
phere deadly IN short while Carbon
mo 1axitle has no color smell or taste
Yet one pcr cent IN the mir would render
man Unconscious within an hour.
The Bureau 81 Miues has been max
ing experiments to test human litnita
tiohs IN breathing this gas, and II Is now
building small experimental tunnel near
Pittshutg Ia continue this work. Is-
pcfts do not vet agree rs 20 how much
earbon monoxide ran be safely wiihsioud
bt children invalidst and other especially
susceptible people, who would lian a We
hicular tunnel as well rs would healthy
workmen, on whom some tests have
been made
New York is expected 20 have twin
subcs in lis tunnel. tube for cars going
each way Be~sean the tubes there is "a
be q ventilation plant with ducts send
ing fresh Dir % the tubes and other duets
30 carr of impure nif. iiostnn and
rttsburg ns we'll a. New Yufk psptci
10 Zig tunnels to relieve traffic congestion
IN busy districts
These tunnels. il successful may prove
the most satisfactory method Of dealing
with automobile jams. The tunnel
Is obviously advantageous TO the mntnf-
lst in that continuous motion is possible
without danger to any pedestrians
The other part nf the automobile.
problem. the parked cnr. has been met
for the time being by regulations rs 10
where, how. and when cnrs may he lefi
standing These restrictions are ranitily
heromingfnadeuuate mi downtown streets
A ~ Or 20 story garage has henn nru-
posed ~ one relief measure This would
undoubtedly dispose Of the care, though
il might I've dilliult tn obtain sufficient
amount Of ground space to build the
garage where il WAS most needed
Another plan Is 10 have an under
ground garage Such garage would pro-
vide storage room for cars ordinarily
parked on thr street for several blocks
10 each direction Basement entrances
direct to office buildings from the tun-
nel could bo opened II ia argued that
thr underground garage would protect
cars from lnclement weather. aud II
small fee we're charged attendants
could ho kept % hand 90 cheek cars A. a
nreeaution against theft This scheme