2.
Response
to
Comments
2.9
Individual
Responses
to
Comments
from
Organizations
volumes
with
and
without
development
of
the
Baylands
under
each
scenario.
These
are
roadside
noise
levels
and
no
reduction
for
attenuation
or
reflection
from
building
is
assumed.
Traffic
volumes
were
calculated
in
the
transportation
analysis
presented
in
Section
4.N.
As
stated
on
Draft
EIR
page
4.N-59,
transit
circulation
features
include
the
transit
hub.
Thus,
the
proposed
transit
hub
is
included
in
the
analysis
of
noise.
Although
the
proposed
transit
hub
is
not
part
of
Baylands
Project
Site
development,
it
is
included
as
part
of
cumulative
without
project
background
noise
levels.
The
results
presented
in
Table
4.J-4
on
page
4.J-27
are
based
on
the
noise
modeling
effort
in
Appendix
K
for
existing
and
existing
plus
Project
Site
development.
The
inputs
to
the
modeling
efforts
are
described
on
page
4.J-26
and
in
Appendix
K.
Draft
EIR
page
4.J-28
identifies
the
mechanism
for
reducing
traffic
noise
on
Geneva
Avenue
to
a
less-than-significant
level.
Mitigation
Measure
4.N-13,
(see
Section
4.N.4,
Impacts
and
Mitigation
Measures
,
of
the
Draft
EIR)
calls
for
the
DSP-V
scenario
to
adopt
additional
transportation
demand
management
(TDM)
measures
to
reduce
Project
Site
development-generated
traffic,
as
required
by
the
County
Congestion
Management
Program.
TDM
measures
would
reduce
vehicle
trips
generated
by
project
site
development
and
the
associated
increases
in
roadway
noise
on
Geneva
Avenue.
The
efficacy
of
TDM
programs
is
estimated
to
range
from
at
best
5
to
15
percent
of
overall
vehicle
miles
travelled
(CAPCOA,
2010).
Therefore
the
needed
2.3
percent
volume
reduction
to
reduce
the
impact
would
be
attainable.
The
traffic
noise
analysis
presented
in
Table
4.J-4
of
the
Draft
EIR
analyzes
potential
traffic
noise
increases
along
ten
road
segments
that
would
experience
the
greatest
increase
in
traffic
volume
and/or
that
would
pass
through
residential
or
other
noise-sensitive
areas.
The
only
road
segment
predicted
to
experience
a
significant
increase
in
roadway
noise
was
Geneva
Avenue.
The
reference
to
other
roadways
is
directed
to
the
other
roadways
that
were
analyzed
and
are
shown
in
Table
4.J-4.
CEQA
requires
that
an
EIR
evaluate
changes
in
the
physical
environment
as
compared
to
existing
conditions.
Existing
daytime
noise
levels
referenced
on
page
4.J-29
of
the
Draft
EIR
are
thus
used
to
assess
the
relative
increase
in
noise
from
future
commercial
deliveries
at
proposed
retail
and
commercial
uses
that
would
result
from
proposed
development
within
the
Baylands.
The
analysis
compares
noise
levels
generated
under
development
of
the
Baylands
to
existing
levels.
After
development
of
the
Baylands
and
addition
of
future
traffic
to
roadways,
ambient
noise
levels
will
increase
and
the
resultant
change
would
be
less
than
if
compared
to
the
existing
Brisbane
Baylands
Final
EIR
2.9.2-123
May
2015