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NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1106
VISUAL ASSESSMENT PRECINCT 04: FRENCHS FOREST ROAD WEST
LocationThis precinct is located on Frenches Forest Road West, between Gladys Avenue and Bluegum Crescent, including the Forest High School.
Viewpoints: 19-22 and A. Refer Figure 4-17 to 4-21 and Plates 4-20, 4-21.
Visible elements of the proposal:
• Widening of Frenchs Forest Road (both verges) and associated side street intersections
• Signalisation of Gladys Avenue/ Frenchs Forest Road intersection (associated with the NBH)
• Removal of roadside parking
• New widened footpaths and associated landscaping and street trees
• New bus shelters and signage
• Widened/ formalized vehicle and pedestrian entries and new car parks to the Forest High School
• Closure of service road entry to the Forest High School
• Replacement fencing to the Forest High School
• Removal of existing vegetation including street trees.
Affected viewers:
• Workers and students of the Forest High School
• Residents on Frenchs Forest Road and immediate houses on side streets
• Pedestrians and cyclists
• Road users (assessed separately)
The visual impact on these viewpoints is described in Table 4-12.
Figure 4-17: Key Plan
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 107
Figure 4-18: VAP 04 viewpoint locations
(Source: Background terrain image: Copyright Google, Digital Globe, 2010)
Forest High School Bluegum CrescentNBH site NBH entry
Figure 4-19: VAP 04 aerial oblique view looking south west along Frenchs Forest Road West towards Forest High School and the proposed intersection with the NBH entry road
Tree removal associated with road widening, NBH entry road and intersection widening
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1108
Plat
e 4-
20:
Vie
wpo
ints
19-
20, l
ooki
ng a
t Fr
ench
s Fo
rest
Roa
d W
est
fron
tage
of F
ores
t H
igh
Scho
ol
Tree
rem
oval
ass
ocia
ted
with
w
iden
ing
and
the
inte
rnal
car
pa
rk u
pgra
de
Exist
ing
Fore
st H
igh
Scho
ol
serv
ice
acce
ss to
be
clos
ed
Var
ious
exi
stin
g en
try
poin
ts
not e
asily
iden
tifia
ble.
Ran
dom
m
esh
pane
ls in
fenc
e
Var
ious
exi
stin
g bu
s st
op
loca
tions
for
gove
rnm
ent,
scho
ol a
nd e
xcur
sion
buse
s
Tree
rem
oval
ass
ocia
ted
with
ro
ad w
iden
ing,
NBH
ent
ry r
oad
and
inte
rsec
tion
wid
enin
g
Plat
e 4-
21:
Vie
wpo
int
21, l
ooki
ng e
ast
thro
ugh
to s
outh
wes
t al
ong
Fren
chs
Fore
st
Roa
d W
est
at t
he F
ores
t H
igh
Scho
ol
Min
or k
erb
wid
enin
g an
d w
iden
ed fo
otpa
th w
ith li
mite
d tr
ee r
emov
al
Exist
ing
mai
n ca
rpar
k en
try
to
be w
iden
ed
Exist
ing
wes
tern
car
park
ent
ry
to b
e re
tain
edEx
istin
g go
vern
men
t bus
sto
p to
be
relo
cate
d
Exist
ing
bus
turn
ing
bay
to
rem
oved
and
inco
rpor
ated
into
sc
hool
gro
unds
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 109
(Source: Background terrain image: Copyright Google, Digital Globe, 2010)
Figure 4-20: VAP 04 aerial oblique view looking west along Frenchs Forest Road West towards Naree Road and the intersection with Forest Way
Existing government bus stop to be relocated
Existing bus turning bay to removed and incorporated into school grounds
Table 4-12: VAP 04 IMPACT RATING
VISUAL ASSESSMENT PRECINCT
SENSITIVITY MAGNITUDE IMPACT
04 Frenchs Forest Road West
Moderate
¬ Partly industrialised/ commercialised mixed with suburban residences
¬ Dense bushland fringes
High
¬ Substantial widening
¬ Substantial vegetation loss..
HIGH TO MODERATE
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1110
Figure 4-21: Artists impression A, looking south west at the new signalised intersection servicing NBH next to Forest High School
Fore
st H
igh
Scho
ol b
uild
ings
New
fenc
ing
and
scre
en
plan
ting
to s
choo
l fro
ntag
e
Mai
n en
try
and
carp
arks
re
conf
igur
ed
New
stu
dent
ent
ryN
ew N
BH e
ntry
roa
dN
BH S
ite
New
wid
ened
and
sig
nalis
ed
inte
rsec
tion
NO
TE:
T
his
visu
alis
atio
n ill
ustr
ates
the
urb
an d
esig
n re
com
men
datio
ns t
o be
co
nsid
ered
furt
her
duri
ng d
etai
led
desi
gn d
evel
opm
ent
and
are
subj
ect
to c
hang
e. V
iew
s of
the
NBH
are
bas
ed o
n cu
rren
t in
form
atio
n an
d do
no
t fo
rm p
art
of t
his
asse
ssm
ent.
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 111
VISUAL ASSESSMENT PRECINCT 05: NAREE ROAD
Location This precinct is located on Naree Road, between Rabbett Street and Forest Way. The dominant land use in this precinct is residential.
Viewpoints: 23-25. Refer Plates 4-22, 4-23 and Plates 4-22 and 4-23.
Visible elements of the proposal:
• Widening of Frenchs Forest Road (both verges) and associated side street intersections
• Removal of roundabout and replacement with signalisation at Rabbett Street/ Frenchs Forest Road intersection
• Retaining walls about 1 metre high, facing residents
• Low retaining walls, less than 1 metre high, facing road users
• Removal of roadside parking
• New widened footpaths and associated landscaping and street trees
• Tree planting on private property (subject to landowner consent)
• Removal of existing vegetation including street trees.
Affected viewers:
• Residents on Frenchs Forest Road and immediate houses on Rabbett Street
• Pedestrians and cyclists
• Road users (assessed separately).
The visual impact on these viewpoints is described in Table 4-13.
Figure 4-22: Key plan
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1112
Figure 4-23: VAP 05 viewpoint locations
Plate 4-22: Viewpoint 24, looking east along Frenchs Forest Road from the intersection with Naree Road
Kerb widening on both sides of Frenchs Forest Road would see existing street trees removed
Existing pedestrian crossing replaced by signalised crossing
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 113
Plate 4-23: Viewpoint 25, looking west along Naree Road towards the intersection with Forest Way
Kerb widening on both sides of Naree Road would see existing street trees removed
Embankment associated with the Forest Alliance Church car park would be replaced with a retaining wall
(Source: Background image: Copyright Google, Digital Globe, 2010)
Table 4-13: VAP 05 IMPACT RATING
VISUAL ASSESSMENT PRECINCT
SENSITIVITY MAGNITUDE IMPACT
05 Naree Road High
¬ Continuous residential streetscape with suburban traffic volumes
¬ Well vegetated road corridor
High
¬ Widening
¬ Retaining walls facing private property and road users
¬ Vegetation loss including street trees
¬ Footpath widening and landscaping
HIGH
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1114
VAP 06: FOREST WAY NORTHLocation: This precinct is located on Forest Way, between Naree Road and the bus stop in front of Forestway Shopping Centre and includes the Forest Alliance Church frontage.
Viewpoints: 26-31. Refer Figure 4-24, 4-25 and Plates 4-24 to 4-26.
Visible elements of the proposal:
• Widening of Forest Way (both verges) and associated side street intersections
• Partial property acquisitions and replacement fencing/ walling
• Signalisation of Naree Road/ Frenchs Forest Road intersection
• Widened intersection with Russell Avenue
• New widened footpaths
• Tree planting on private property (subject to landowner consent)
• Removal of existing vegetation including street trees, particularly next to the Forest Way multi-storey carpark associated with extension of an existing bus stop.
Affected viewers:
• Residents on Forest Way and immediate houses on Naree Road and Russell Avenue
• Workers and customers of Forestway Shopping Centre, as well as small medical related suites on Forest Way
• Pedestrians and cyclists
• Road users (assessed separately).
The visual impact on these viewpoints is described in Table 4-14
Figure 4-24: Key plan Figure 4-25: VAP 06 viewpoint locations
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 115
Plat
e 4-
24:
Vie
wpo
int
26, l
ooki
ng s
outh
alo
ng F
ores
t Way
from
the
inte
rsec
tion
with
Nar
ee R
oad
Plat
e 4-
25:
Vie
wpo
int
30, l
ooki
ng e
ast
alon
g R
usse
ll A
venu
e to
war
d th
e in
ters
ectio
n w
ith F
ores
t Way
Road
wid
enin
g w
ould
impa
ct
the
curt
ilage
of t
he F
orm
er
Met
hodi
st C
hurc
h bu
ildin
g
Russ
ell A
venu
e an
d ca
rpar
k en
try
larg
ely
reta
ined
Road
wid
enin
g an
d sig
nalis
atio
n of
the
inte
rsec
tion
wou
ld
impa
ct fr
ont b
ound
arie
s of
pr
ivat
e pr
oper
ty a
nd b
usin
esse
s
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1116
Table 4-14: VAP 06 IMPACT RATING
VISUAL ASSESSMENT PRECINCT
SENSITIVITY MAGNITUDE IMPACT
06 Forest Way Low
¬ Highly urbanised road corridor with heavy traffic volumes
¬ Poor pedestrian environment
¬ Combination commercial/ residential land uses.
Moderate
¬ Widening
¬ Partial property acquisitions
¬ Vegetation loss including street trees
¬ Footpath widening and landscaping.
MODERATE TO LOW
Plate 4-26: Viewpoint 31, looking south along Forest Way from the Forestway Shopping Centre carpark structure
Road widening would impact the curtilage of the Forestway Shopping Centre
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 117
VAP 07: WARRINGAH ROAD EAST
Location: This precinct is located on Warringah Road, east of the intersection with Allambie Road. It consists of a mixture of private and residential frontages.
Viewpoints: 26-31. Refer Figure 4-26 and Plates 4-27 to 4-29.
Visible elements of the proposal:
• Widening of Warringah Road, between Allambie Road and Courtley Road to the east
• Widened intersection with Allambie Road, modified intersection with Frenchs Forest Road East
• New widened footpaths
• Tree planting on verges
• Removal of existing vegetation including street trees.
Affected viewers:
• Residents on the northern side Warringah Road
• Workers of several corporate buildings on the souther side of Warringah Road
• Pedestrians and cyclists
• Road users (assessed separately).
The visual impact on these viewpoints is described in Table 4-15.
Figure 4-26: VAP 07 viewpoint locations
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1118
Plat
e 4-
27:
Vie
wpo
int
32, l
ooki
ng w
est
at t
he in
ters
ectio
n of
War
ring
ah R
oad
and
Fren
chs
Fore
st R
oad
East
Plat
e 4-
28:
Vie
wpo
int
33, l
ooki
ng w
est
alon
g W
arri
ngah
Roa
d op
posi
te t
he in
ters
ectio
n w
ith F
renc
hs F
ores
t R
oad
East
Mod
ifica
tion
to e
xist
ing
inte
rsec
tion
Exist
ing
resid
ence
s lo
cate
d be
hind
veg
etat
ion
and
boun
dary
wal
ling
Road
wid
enin
g on
sou
ther
n sid
e w
ould
req
uire
the
rem
oval
of
exi
stin
g st
ands
of v
eget
atio
n
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 119
Table 4-15: VAP 07 IMPACT RATING
VISUAL ASSESSMENT PRECINCT
SENSITIVITY MAGNITUDE IMPACT
07 Warringah Road east
Low
¬ Corporate ‘parkland’ edges with large setbacks
¬ Screened/ walled residential frontages
¬ Exposed pedestrian environment.
Moderate
¬ Widening
¬ Vegetation loss including street trees
¬ Footpath widening and landscaping.
MODERATE TO LOW
Plate 4-29: Viewpoint 34, looking east along Warringah Road toward the intersection with Courtley Road
Distant views of ocean at Dee Why
Large well-vegetated setbacks to corporate buildings
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1120
ROAD USER VIEWSRoad user views within the Stage 1 project area have been assessed in order to better understand the visual changes that would be experienced. The views and visual experience of road users are different from ‘road viewers’ and need to be carefully considered in order to promote a visually attractive, stimulating and safe experience for the motorist. The relationship between road user views and urban design principles can improve this driver experience and contribute to a ‘sense of place’.
The visual experience of the road user is similar to other viewers, however they are amplified in some locations eg proximity to the face of a retaining wall and subdued in others eg road surfaces and road furniture. Road user views are also impacted by the speed of the road user and the amount of time available for looking at other elements beside the road. Reduced speed limits and signalised intersections will highlight views. The road user viewing experience is summarised as follows:
• Partially enclosed vegetated corridor with fleeting glimpses or vistas into residential and commercial properties
• Retaining walls in cut
• Sequential street tree arrangement, broken at major buildings entrances, residential driveways and at intersections
• Road surface and associated linemarking, signage and road furniture
• At night, views would be constrained to the road surface itself, with no measures provided in order to reduce headlight glare from oncoming traffic.
The visual impact on road user views is described in Table 4-16.
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 121
Tabl
e 4-
16: R
OA
D U
SER
VIS
UA
L IM
PAC
T R
ATIN
G
VAP
SEN
SIT
IVIT
YM
AG
NIT
UD
EIM
PAC
T
Skyl
ine
Shop
sM
oder
ate
¬
Subu
rban
cor
ner
shop
s a
key
attr
acto
r fo
r lo
cal a
rea
Mod
erat
e
¬
Wid
enin
g an
d sig
nalis
atio
n
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s
MO
DER
ATE
Fren
chs
Fore
st R
oad
East
Mod
erat
e
¬
Com
bine
d re
siden
tial/
com
mer
cial
tree
line
d st
reet
Low
¬Si
gnal
isatio
n
¬
Foot
path
impr
ovem
ents
and
land
scap
e.
MO
DER
ATE
TO
LOW
Park
way
Nor
thM
oder
ate
¬
Exist
ing
wid
e pa
vem
ent a
rea
with
bus
hlan
d ed
ges
Mod
erat
e
¬
Subs
tant
ial w
iden
ing
¬
Subs
tant
ial v
eget
atio
n lo
ss.
MO
DER
ATE
Fren
chs
Fore
st R
oad
Wes
tM
oder
ate
¬
Tree
line
d st
reet
¬
Scho
ol fr
onta
ge m
odifi
ed a
nd in
crea
sed
road
furn
iture
Hig
h
¬
Wid
enin
g
¬
Road
furn
iture
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s.
HIG
H T
O
MO
DER
ATE
Nar
ee R
oad
Hig
h
¬
Resid
entia
l tre
e lin
ed s
tree
t
¬
Topo
grap
hy e
mph
asise
s lo
ngitu
dina
l vie
ws
of s
tree
tsca
pe.
Hig
h
¬
Wid
enin
g
¬
Reta
inin
g w
alls
faci
ng p
rivat
e pr
oper
ty a
nd r
oad
user
s
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s
¬
Foot
path
wid
enin
g an
d la
ndsc
apin
g.
HIG
H
Fore
st W
ay N
orth
Low
¬C
ombi
ned
com
mer
cial
/ res
iden
tial s
trip
with
min
imal
str
eet
tree
s
¬
Road
use
r ex
pect
atio
ns o
f visu
al q
ualit
y ar
e lo
w.
Mod
erat
e
¬
Wid
enin
g
¬
Part
ial p
rope
rty
acqu
isitio
ns
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s
¬
Foot
path
wid
enin
g an
d la
ndsc
apin
g.
MO
DER
ATE
TO
LOW
War
ring
ah R
oad
East
Low
¬C
orpo
rate
‘par
klan
d’ e
dges
with
larg
e se
tbac
ks
¬
Scre
ened
/ wal
led
resid
entia
l fro
ntag
es
¬
Expo
sed
pede
stria
n en
viro
nmen
t.
Mod
erat
e
¬
Wid
enin
g
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s
¬
Foot
path
wid
enin
g an
d la
ndsc
apin
g.
MO
DER
ATE
TO
LOW
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1122
SECONDARY VISUAL CATCHMENT ZONEThe Secondary VCZ has been determined as an approximate 100 metre wide band around the Stage 1 area.
This zone captures residences, commercial properties and school grounds that are:
• Well away from the proposal
• Often on the other side of a ridgeline and therefore oriented away from the proposal
• Screened by built form
• Situated on more elevated positions and may therefore have glimpses of the proposal.
• May have longitudinal views up or down the proposal due to steel elevation changes.
Generally, many of the residences are screened by vegetation, however some of this vegetation would be reduced as a result of widening in both Stage 1 and the future Stage 2 and therefore opening up views of the Stage 1 proposal, although these views would be limited to small openings between other buildings.
The secondary VCZ is also relevant at the eastern end of Stage 1, where widening of Warringah Road, next to residences and commercial properties would result in partial views of the proposal.
The visual impact on secondary VCZ views is described in Table 4-17.
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 123
Tabl
e 4-
17: S
ECO
ND
ARY
VC
Z V
ISU
AL
IMPA
CT
RAT
ING
VAP
SEN
SIT
IVIT
YM
AG
NIT
UD
EIM
PAC
T
01 S
kylin
e Sh
ops
Low
¬Br
oad
ridge
top
terr
ain
with
lim
ited
oppo
rtun
ities
for
long
er r
ange
vie
ws
Mod
erat
e
¬
Wid
enin
g an
d sig
nalis
atio
n
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s.
MO
DER
ATE
TO
LOW
02 F
renc
hs F
ores
t R
oad
East
Low
¬Re
siden
tial a
nd c
omm
erci
al p
rope
rtie
s on
low
sid
e of
rid
ge w
ith li
mite
d vi
ewin
g op
port
uniti
es
Low
¬Si
gnal
isatio
n
¬
Foot
path
impr
ovem
ents
and
land
scap
e.
LOW
03 P
arkw
ay N
orth
Low
¬V
ery
few
res
iden
tial o
f com
mer
cial
pro
pert
ies
with
den
se
vege
tatio
n se
tbac
ks
Mod
erat
e
¬
Subs
tant
ial w
iden
ing
¬
Subs
tant
ial v
eget
atio
n lo
ss.
MO
DER
ATE
TO
LOW
04 F
renc
hs F
ores
t R
oad
Wes
tLo
w ¬
Glim
pses
from
sch
ool b
uild
ings
thro
ugh
cano
py tr
ees
¬
Resid
entia
l pro
pert
ies
on lo
w s
ide
of r
idge
with
lim
ited
view
ing
oppo
rtun
ities
Mod
erat
e
¬
Wid
enin
g
¬
Road
furn
iture
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s.
MO
DER
ATE
TO
LOW
05 N
aree
Roa
dLo
w ¬
Resid
ence
s on
hig
h sid
e (s
outh
) ha
ve p
oten
tial g
limps
es
¬
Resid
ence
s on
low
sid
e (n
orth
) ha
ve p
oten
tial g
limps
es o
f re
tain
ing
wal
ls
¬
Topo
grap
hy e
mph
asise
s lo
ngitu
dina
l vie
ws
of s
tree
tsca
pe.
Mod
erat
e
¬
Wid
enin
g
¬
Reta
inin
g w
alls
faci
ng p
rivat
e pr
oper
ty a
nd r
oad
user
s
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s
¬
Foot
path
wid
enin
g an
d la
ndsc
apin
g.
MO
DER
ATER
TO
LO
W
06 F
ores
t Way
Nor
thLo
w ¬
Pote
ntia
l glim
pses
from
upp
er le
vels
of c
arpa
rk s
truc
ture
an
d sh
oppi
ng c
entr
e
¬
Mos
t oth
er p
rope
rtie
s on
low
sid
e of
rid
ge w
ith li
mite
d vi
ewin
g op
port
uniti
es
Mod
erat
e
¬
Wid
enin
g
¬
Part
ial p
rope
rty
acqu
isitio
ns
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s
¬
Foot
path
wid
enin
g an
d la
ndsc
apin
g.
MO
DER
ATE
TO
LOW
07 W
arri
ngah
Roa
d Ea
stLo
w ¬
Pote
ntia
l vist
as fr
om u
pper
leve
l cor
pora
te b
uild
ings
.
Mod
erat
e
¬
Wid
enin
g
¬
Veg
etat
ion
loss
incl
udin
g st
reet
tree
s
¬
Foot
path
wid
enin
g an
d la
ndsc
apin
g.
MO
DER
ATE
TO
LOW
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1124
IMPACTS DURING CONSTRUCTION
Road Construction and stagingConstruction of the Stage 1 project would be undertaken in stages to minimise disruption on road users and maintain safety of pedestrians. Staging details would be determined during the detailed design stage.
SafetySafety of students attending Forest High School would be a major priority during construction. Footpaths are to be clearly delineated, with barriers wherever possible in order to provide safe passage next to construction areas.
Site CompoundA site compound would be located to the south east of the proposal at the corner of Allambie Road and Aquatic Drive. The immediate area consists of a combination of industrial and commercial properties, as well as care facilities such as the Cerebral Palsy Alliance Centre.
With Allambie Road providing an alternative route between Frenchs Forest and Manly, truck access to the compound would likely inhibit some traffic flows periodically.
The compound and stockpile areas would be located behind an existing building and would be screened by vegetation from most viewpoints (refer Figure 4-27 , 4-28 and Plates 4-30, 4-31). In order to mitigate visual impacts mesh screening and temporary landscape treatments would be required. Other environmental controls such as noise and dust would also be required.
Visual impact relating to the site compound is assessed in Table 4-18.
Figure 4-27: Key plan Figure 4-28: Site compound viewpoints
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 125
Plat
e 4-
30:
Vie
wpo
int
34, s
ite c
ompo
und
site
loca
ted
behi
nd a
n ex
istin
g bu
ildin
g on
Alla
mbi
e R
oad
Plat
e 4-
31:
Vie
wpo
int
35, s
ite c
ompo
und
loca
ted
behi
nd e
xist
ing
vege
tatio
n on
pri
vate
pro
pert
y
Com
poun
d sit
e lo
catio
n be
hind
ex
istin
g bu
ildin
g
Com
poun
d sit
e lo
catio
n be
hind
ex
istin
g ve
geta
tion
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1126
Tabl
e 4-
18: S
ITE
CO
MPO
UN
D V
ISU
AL
IMPA
CT
RAT
ING
TY
PESE
NSI
TIV
ITY
MA
GN
ITU
DE
IMPA
CT
Prim
ary V
CZ
Low
¬Pr
imar
ily c
omm
erci
al/ s
ervi
ce-r
elat
ed a
rea
¬
Low
num
ber
of r
esid
entia
l pro
pert
ies
with
vie
win
g op
port
uniti
es
Mod
erat
e
¬
Erec
tion
of te
mpo
rary
offi
ces
and
anci
llary
st
ruct
ures
¬
Car
park
ing
and
larg
e ve
hicl
e pa
rkin
g
¬
Stoc
kpile
s an
d st
ockp
ile m
anag
emen
t pro
cess
es
¬
Hea
vy v
ehic
le tr
affic
incr
ease
d.
MO
DER
ATE
TO
LOW
Seco
ndar
y VC
ZN
eglig
ible
¬
Resid
entia
l pro
pert
ies
loca
ted
belo
w r
idge
¬
Long
itudi
nal v
iew
s em
phas
ised
due
to to
pogr
aphy
Hig
h
¬
As
abov
e
NEG
LIG
IBLE
Roa
d U
ser
Low
¬V
iew
s lim
ited
by b
ound
ary
fenc
ing
¬
Occ
asio
nal v
iew
s of
/ int
erac
tion
with
hea
vy v
ehic
les.
Hig
h
¬
As
abov
e
MO
DER
ATE
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 127
4.4 VISUAL IMPACT ASSESSMENT SUMMARY
Table 4-19: PRIMARY VCZ VISUAL IMPACT RATING
VAP SENSITIVITY MAGNITUDE IMPACT
01 Skyline Shops Moderate Moderate MODERATE
02 Frenchs Forest Road East Moderate Low MODERATE TO LOW
03 Parkway North Moderate High HIGH TO MODERATE
04 Frenchs Forest Road West Moderate High HIGH TO MODERATE
05 Naree Road High High HIGH
06 Forest Way North Low Moderate MODERATE TO LOW
Table 4-20: SECONDARY VCZ VISUAL IMPACT RATING
VAP SENSITIVITY MAGNITUDE IMPACT
01 Skyline Shops Low Moderate MODERATE TO LOW
02 Frenchs Forest Road East Low Low LOW
03 Parkway North Low Moderate MODERATE TO LOW
04 Frenchs Forest Road West Low Moderate MODERATE TO LOW
05 Naree Road Low Moderate MODERATE TO LOW
06 Forest Way North Low Moderate MODERATE TO LOW
The visual impact assessment summary for the Stage 1 project is described in Table 4-19 and 4-20. Potential impacts in the Primary visual catchment zone are generally higher than that in the secondary zone due to proximity to the Stage 1 project and reduced viewing opportunities. Secondary zone locations are often 50 metres away from the road and would be separated by topography, vegetation and built form.
In the primary zone, the greatest potential impacts would be experienced Frenchs Forest Road West, Naree Road and the intersection of Frenchs Forest Road with Wakehurst Parkway.
Elsewhere, visual impacts would be at more easily acceptable levels and are considered reasonable for the type of work proposed.
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1128
OVERVIEWThis section describes the mitigation measures that have been included as part of the Stage 1 proposal, described in Section 3 of this report and a summary of further mitigation measures to be considered during the detailed design and construction phases of the project. They have been developed in accordance with the urban design and landscape objectives and principles outlined in Table 1-3 in Section 1 and the urban design and landscape strategy summarised in Table 3-1 in Section 3 of this report.
MITIGATION INCORPORATED IN THE CONCEPT DESIGNThe integration of the engineering and performance objectives with urban and landscape design objectives for the Stage 1 project, aims to produce a design outcome that fits sensitively with the existing qualities and characteristics of the area. In order to achieve this, a range of mitigation measures have been incorporated into the project as the concept has developed. These measures combine to develop a solution that seeks to protect and enhance the existing visual character of the area.
The mitigation measures that have been undertaken in response to the principles and objectives, during the development of the urban and landscape design concept for the Stage 1 project are summarised in Table 3-1.
Mitigation measures for the Stage 2 area will be discussed further in the Stage 2 EIS report, however they would be linked to the Stage 1 mitigation measures through the combined landscape character impact assessment.
MITIGATION TO BE INCORPORATED INTO DETAILED DESIGNSubject to the approval of the project being granted, it is recognised that further work will be required to develop the final urban design and landscape plan. Whilst development of the concept design has attempted to mitigate the overall impact of the concept proposal with a focus on the Stage 1 project’s major project components, their design and integration within the study area’s landscape and cultural setting, opportunities will arise during detail design to further refine the design of the project to produce enhanced urban design outcomes.
The urban design objectives and principles outlined in Section 1, together with the urban design and landscape concept included in Section 3, would be used to further guide the detailed design of key project elements of the road network and public domain areas.
A summary of the key mitigation and management strategies that would be considered during the detail design phase of the project is provided in the following table:
4.5 MITIGATION MEASURES
URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 129
Table 4-21: SUMMARY OF URBAN DESIGN AND LANDSCAPE MITIGATION MEASURES TO BE INCORPORATED INTO THE STAGE 1 DETAILED DESIGN
MITIGATION LOCATION FOR USE REQUIREMENT
Replacement of street tree planting
¬ All streetscapes impacted by the proposal
¬ Private property to approval of property owner.
¬ Assists with visual and character impact mitigation
¬ Refer species selection and procurement guidelines
Landscape screen planting
¬ Residential streetscapes along Frenchs Forest Road West, Naree Road and Warringah Road
¬ Forest High School frontage and along service road
¬ Terracing to retaining walls
¬ Assists with visual and character impact mitigation
¬ Landscape buffer screening for sensitive residential ‘receptors’.
Landscaped verges ¬ New footpaths on Allambie Road (north), Forest Way and Warringah Road
¬ Where separation from kerb would benefit pedestrian comfort in higher speed limits or where screen planting not required
Exposed rock in cuttings ¬ Intersection of Wakehurst Parkway with Frenchs Forest Road
¬ Subject to further investigation. Where exposed rock cannot be used revegetate or provide stone clad retaining walls
¬ Stone rubble and crushed sandstone from cuttings to be reused into the proposal.
Retaining wall finishes ¬ Any retaining wall facing private property or facing proposed road upgrade
¬ Walls to be stone clad or stone block construction
¬ Stone types to be sourced sandstone from the greater Sydney region
Retaining wall design ¬ All retaining wall locations ¬ Terrace walls and provide planting on benches
¬ Taper ends of walls and integrate with other new or existing walls
Improvements to pedestrian network
¬ All streetscapes impacted by the proposal ¬ Design widened footpaths and form continuous routes
¬ Ensure connection with key attractors and existing footpath links.
Reinforcement of bicycle network
¬ Warringah Council’s regional connections along Warringah Road and Wakehurst Parkway
¬ Ensure as a minimum on-road facilities are provided.
¬ Preference for on-road or separated facilities where possible.
Water sensitive urban design
¬ Private property ie Forest High School
¬ Traffic islands where suitable
¬ Between road upgrades and sensitive bushland
¬ Intercept road runoff prior to entry into pit and pipe drainage and sensitive bushland areas if possible
¬ Filter runoff to improve water quality prior to entry into these systems
Widening reductions ¬ Wakehurst Parkway next to bushland
¬ Forest Way next to the former Methodist Church
¬ Consider reduction in bus priority where feasible
¬ Consider lane width reduction
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1130
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URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 131
Following an analysis of landscape context, the development of objectives, principles, strategies and mitigaion measures, an assessment of landscape character and visual impact has been undertaken in accordance with Roads and Maritime guidelines. The results of this assessment has been incorporated into the concept design and has been recommended for further consideration in both the Reference Design and Tender Design’s, once the concept proposal and Stages 1 and 2 be approved in their entirety.
The landscape character and visual impact assessment of the proposal represents a qualitative assessment based on the landscape character zones, which have been determined based on an investigation of landscape and cultural context and an analysis of land use, vegetation, topography and scenic values. Impacts have been determined and measures proposed In order to address these impacts.
While the proposal would have the potential to provide a more efficient transport system along all corridors, maintain and improve access for pedestrians and cyclists, overall, the proposal would result in substantial impacts on both landscape character and visually, as experienced by road users and sensitive receptors.
This would be particularly evident along the suburban east-west corridors, of Stage 1, particularly Naree Road and Frenchs Forest Road West, as well as Warringah Road in the eastern section of the Stage 1 area. Similarly to landscape character impact, visual impact would be greatest along the east west corridors, primarily due to the magnitude of the work proposed as well as the close proximity of residential viewers.
The north south transport corridors have a lesser magnitude of work proposed in Stage 1 and are more resilient to change. Along Forest Way the work would be occurring in an established urban area, which has capacity to absorb change. On Wakehurst Parkway an existing signalised intersection would be widened resulting vegetation loss in an existing vegetated corridor and few residents would be impacted.
The concept proposal including Stage 2, comprises a greater magnitude of work along the major corridors of Warringah Road and Wakehurst Parkway, resulting in greater impacts should both stages be undertaken. A detailed discussion of these impacts would be undertaken in the Stage 2 report.
In order to mitigate visual impacts within this urban bushland setting, special consideration would be required in all landscape character areas of the concept proposal. Special consideration should be applied in order to maintain the well-vegetated, pedestrian scale, streetscape environment of Frenchs Forest Road and Naree Road, as well maintaining the parkway character of Warringah Road.
Key stakeholder locations, including Forest High School, the Forest Alliance Church and Skyline Shops, require detailed design considerations, which are to be developed further in subsequent design stages.
5. CONCLUSION
NBH CONNECTIVITY AND NETWORK ENHANCEMENTS : STAGE 1132
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URBAN DESIGN REPORT AND LANDSCAPE CHARACTER AND VISUAL IMPACT ASSESSMENT 133
REFERENCES
ROADS AND MARITIME SERVICES (FORMERLY RTA) REFERENCES AND GUIDELINESRoads and Traffic Authority of NSW, Landscape Guideline, April 2008.
Roads and Traffic Authority of NSW, Towards a more Sustainable RTA: RTA’s Environmental Sustainability Strategy, June 2010.
Roads and Traffic Authority of NSW, Climate Change Plan 2010 to 2013, September 2010.
Roads and Traffic Authority of NSW, Shotcrete Design Guidelines, 2005.
Roads and Maritime Services, Beyond the Pavement, Urban design policy, procedure and design principles, 2013.
Roads and Maritime, Environmental Impact Assessment Practice Note, Guideline for landscape character and visual impact assessment, 28th March 2013.
CONCEPT PROPOSAL REPORTSSMEC, Northern Beaches Hospital Connectivity and Network Enhancements Environmental Impact Assessment Report, 2014.
RPS Manidis Roberts, Northern Beaches Hospital Connectivity and Network Enhancements Statement of Heritage Impact, Stage 1 area, Heritage Constraints, Concept Proposal, July 2014.
Lyall & Associates, Northern Beaches Hospital Connectivity and Network Enhancements Drainage Investigation Report, 2014.
BACKGROUND REPORTSKI Studio, Northern Beaches Hospital Precinct Supporting Road Network - Urban Design Framework, September 2013.
SMEC, Northern Beaches Hospital Connectivity and Network Enhancements Preliminary Environmental Investigation, 2014.