2.
Response
to
Comments
2.9
Individual
Responses
to
Comments
from
Organizations
Parking
lot
lighting
shall
be
of
the
same
source
of
illumination
as
street
lighting
so
as
to
ensure
uniformity
of
night
lighting
color.
As
explained
within
the
mitigation
measure,
uniform
lighting
standards
with
regard
to
color
are
required
to
ensure
consistency
of
design
and
uniformity
in
night
lighting.
As
stated
in
the
introduction
to
Mitigation
Measure
4.A-4a,
these
design
standards
have
been
provided
to
minimize
Project
Site
development
lighting
to
that
which
is
required
for
safety
and
comfort
only.
Consistency
in
color
between
parking
lot
lighting
and
street
lighting
is
intended
for
safety
purposes
as
it
reduces
the
potential
for
darker
locations,
as
well
as
the
potential
for
locations
with
similar
level
of
light
to
appear
lighter
or
darker
than
others.
Additional
review
of
street
and
parking
lot
lighting
will
occur
as
part
of
planning
review.
Approval
of
a
Lighting
Plan
is
required
prior
to
final
approval
of
design
plans
for
roadways.
Glare
and
the
“albedo
concept”
are
described
on
page
4.A-37
in
Section
4.A
Aesthetics
and
Visual
Resources
.
As
explained
in
the
text,
“Glare
results
from
sharply
reflected
light
caused
by
sunlight
or
artificial
light
reflecting
from
highly
finished
surfaces
such
as
paving,
roofing,
or
glass.
The
level
of
glare
is
measured
using
the
albedo
concept,
which
calculates
the
relative
reflectivity
of
surfaces.
For
example,
soil
cover
has
an
albedo
of
0.17,
which
indicates
that
approximately
17
percent
of
solar
radiation
hitting
a
soil-covered
ground
would
be
reflected.
Grass
cover
has
an
albedo
of
0.20,
indicating
a
solar
reflectivity
of
approximately
20
percent,
or
slightly
more
glare
than
soil
cover.”
In
other
words,
the
higher
the
albedo
rating,
the
greater
the
glare
that
results.
Later
in
Section
4.A,
the
EIR
analyzes
potential
impacts
related
to
glare
from
implementation
of
the
four
development
scenarios.
In
that
analysis,
it
is
explained
that
in
an
effort
to
increase
energy
efficiency,
Energy
Star
“cool
roofs”
would
be
used
on
buildings,
but
these
roofing
materials
would
result
in
higher
albedo
and
glare.
For
instance,
the
United
States
Environmental
Protection
Agency
Energy
Star
rating
for
cool
roofs
is
up
to
0.65
for
slightly
sloped
surfaces.
This
means
that
65
percent
of
the
solar
radiation
hitting
the
Energy
Star
“cool
roofs”
would
be
reflected,
creating
glare.
Section
4.A
Aesthetics
and
Visual
Resources
,
includes
an
analysis
of
daytime
glare
and
identifies
potential
impacts
to
surrounding
neighborhoods
and
motorists
on
nearby
U.S.
Highway
101.
Mitigation
Measure
Mitigation
Measure
4.A-4b
applies
to
all
building
surfaces,
not
just
those
that
might
cast
glare
onto
the
US
101
freeway.
Thus,
mitigation
for
visual
impacts
to
Brisbane
residents
and
freeway
motorists
is
provided.
The
Draft
EIR
explains
that
high
albedo
or
glare
can
cause
daytime
interference
with
activities
in
sensitive
land
use
areas,
as
well
as
public
roadways
or
air
travel
Brisbane
Baylands
Final
EIR
2.9.3-26
May
2015