Honolulu star-bulletin. [volume] (Honolulu [Oahu, Hawaii]) 1912-2010, 1912-07-29
For news and the truth about II, all
people bur the Star Bulletin.

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For news and the truth about II, all
people bur. the Star Bnlletin.
49, ~
logical conclusion that only those roads
that take care Of the larger percent
age OF the traffic or 20 per cent. of all
roads should be improved by the pro-
ceeds Of bond issues.
pertinent Points
The following points were made by
Bishop during the course of his talk:
The macadam road Of today is made
as follows: The first course is laid OF
stone IL inches In diameter and is
three inches thick, the subsofl being
thoroughly rolled FIRST The hexf
course It laid Of ] 1-z-inch stone This
i filled with screenings. sprinlxled.
rolled and puddled Sometimes it is
necessary for a second pudding In
Hawaii q foundation course is neces-
sary. 1t Is found that there is no need
to pack this bottom course carefully.
while macadam roads have been
popular in the past. automobile traffic
has revolutionized ideas in the East,
although it win be some time before
Hawaii feels the effect Of it. Some
more permanent form of paving was
found necessary and bituminous con-
strnction has jumped into favor. This
Is usually incorporated at the time Of
construction
Highway surfaces are composed of
fnents Wood block, stone block, as
phalt block, sheet asphalt. brick. con-
crete and bitulithic- For roads
Earth. sand-clay. gravel. macadam.
slate and shell Macadam may be
snbdivfded into water bound and bitu-
Iminous The latter may be made by
surface treatment, the penetration
method or by mixing. The latter
Bishop considers the best
Light Oil valueless-
Unless ii is an oil like that which
comes from California, Bishop is not
in favor of putting down light" oil
surface The tars are falling out of
use and the heavy and medium as
phaltic oils are making a rapid rise
The character of the Hawaii belt
road:
1t has a 6-inch subbase There is
an edging of stone to hold subbase and
maeadam in place. Owing to lack of
funds there is nothing fancy about it.
but il is serviceable and should be
durable. It's width. Is feet. is more
than the general average throughout
the Union Bishop does not think Ha-
waii wants wide roads for many years.
but has made, provision in his plans
in case they are needed so that the
road can be widened without affecting
the present road There is a. crown
with grade Of one-half inch to the
foot.
IT. is not advisable to take water
wash away the surface. on high
crown
Favors Low Crown.
| On high crowned road all the traf-
fic is liable to concentrate on the cen-
ter of the road On a low crowned
road the traffic spreads and the wear
lis more even
The cost of building roads in Ha-
waii on the windward side averages
about the same as in California -S15.-
900 per mile.
Where the life of a macadam road
| is likely TO be less than ten years. it
pays to put down a permanent ave
ment
It Is imperative for road to be
maintained after il IS built 1t viii
go to pieces otherwise. and this is only
foolish waste of money. Macadam is
very perishable and a maintenance
gang should be kept going all the
time and should take charge as soon
as the contractor has finished
The lack of systematic and per
manently organized maintenance gang
has been the main source OF trouble
with roads on Hawaii Such systems
are in vogue in Europe. France and
England and some parts Of the United
States
1 The prevailing idea is that once
! macadam road is built il viii last for
All time This Is q great fallacy