The Manchester Boulevard An Urban Linear Forest
Original Proposal Counter Proposal
Land Use commercial residential parking
Design Statement Location:
City Centre
community hotel
The proposed HS2 station to the north of the existing Piccadilly Station has initiated a regeneration proposal for the district in which a dramatic boulevard is anticipated, yet the current proposal has not detailed how it can be achieved. In light of this, the project aims at providing a feasible, but imaginative option to fill the gap.
Piccadilly Station
Am p
Th e
hit
Lack Cultural Uses
atr e
he
atr e
Cultural buildings and Amphitheatre Proposed The function of one another will be mutually reinforced. The public space will then be transformed to a hub of cultural activities and thus the function of the nearby section of the boulevard will be affected.
It is believed that this will reduce the vibrancy and diversity of the regeneration district.
Route System
The design of this project is inspired by the fluid pattern of the trees in the Medlock Valley which creates a variety of spatial qualities, so the design intention is to capture these qualities through tree planting along the Boulevard. This project explores how different forms, densities and arrangements of trees can define space in public realm. Lowering flood risk of River Medlock and offering better pedestrian experience are also the wishes of the project.
Manchester City
lery
Gal
bicycle storage
Lack Direct Route to High Density Housing Development
Medlock Valley
Diagonal Route Provided Other than the access to the housing development is facilitated, the circulation towards the northeast of the regeneration area will be enhanced. This layout of route system will strengthen the role of the cultural area as a central public space which is just outside an entrance of the future train station.
This will be inconvenient for the residents of that housing estate.
3. Motorised Traffic
Blowup A
Bou
Remain Part of the Traffic in London Road
The currently proposed boulevard is very much oriented for motorised traffic which can hardly provide an enjoyable experience for the pedestrians .
This will reduce the motorised traffic in the boulevard, so that a better space for pedestrians can be created.
leva
3
rd
Tram Line on Ground
Blowup B
Tram Line Underground
The tram line on ground that comes out from the central entrance severely interrupt the pedestrian movement and other public activities.
9 4
Bou
leva
rd
R on nd Lo
Ro don Lon
The section right outside the train station is proposed to go underground and come out to the ground level again at the existing opening of the tunnel.
ute 8 6
1
Heavy Traffic in the Boulevard
Ro
2
Region
al
oad
ad
4. Quality of the Boulevard
Blowup C
Small Amount of Pedestrian Space
Much Widened Median Strip
The boulevard proposed has only a very narrow median strip.
The median strip is now widened to accommodate stalls and varieties of green spaces.
5
8
Lack Details in Creating Drama
More Thoughts is Creating Quality
Blowup D
River
1
Rain Garden
5
Dense Birch Planting
2
Architectural Planting
6
Semi-enclosed Coniferous Planting
3
Tall Plane Trees Planting
7
New Public Park
4
Sparse Birch Planting
8
Wetland Meadow
9
The boulevard has only two rows of trees and benches. No details of how drama is created are provided.
Medl
ock
A great variety of spaces will be created through planting design, e.g. from formal to informal; from open to intimate.
Central Cultural Space 7
6
5. Flood Mitigation
10 0
one in a hundred years
30 20
150
50
Blowup E
200
100
40
N
300m
The Mayfield development has proposed a central green space that has a flooding zone, but within the Piccadilly regeneration area (the northern side of the train station) gives no details regarding of this issue.
A large portion of the surface within the boulevard will be permeable to water. In front of the western entrance, there is a feature rain garden and by the lobe of the River Medlock in the new park, there will be wet meadow which can be flooded.
Water Management Strategy
KEY:
Cent ral C u
ltura
*
l Spa
the more infiltration and water attenuation, the less runoff to River Medlock
Features
Main Route
a Stall b Permeable Paving
Main Entrance
c Rows of Street Trees
KEY: 6
2. 5
4
3 2
1
1
2 3 4
5
6
ing M
ps
anch
Futu re HS este
2 Tra
ck
r Pic cadi
lly Tr ain S tatio
n
*
Low er-en
d Re
tail S
hops
sity
Hou
sing
on L owe r Sto ries
New
Pub li
Deve
lopm
ent
Spatial Arrangement 1
Side Walks of Median Strip (9000)
2
Cycle Lane (2000)
3
Buffer Zone (1000)
4
Parking Lane (2500)
5
One-way Road (3500)
6
Pedestrian Path (3000)
c Pa
rk
Interlocking nibs
opp ort
*
ail Sho
Den
Water Attenuation
uni ties
Species: Sorbus aucuparia ‘Streetwise’ - implying a secondary pedestrian path
c
6mm gap for infiltration
d
a
(Pocket Parks)
urf ace
nd Ret
Vegetative groundcover
Myriad combined concrete flag textured paving. Tone: Morning Light (90% surface)
in Sidewalks
Ma xim ise tree pla ntin g
High-e
High
Infiltration
Vegetative groundcover
d Smaller street trees
Arrival Space
Porous in Pocket Parks
Resin-bound Gravel
Species: Liquidambar styraciflua - defining the median strip - traffic calming - strengthening legibility
ce
Hotel
*
More Flood Risk Management
Features & Spatial Arrangement of the Boulevard
Context of the Project Site
Exist
Little Flood Risk Management
one in a thousand years
1:2000
Per me abl eS
b
(Sidewalk)
9
Are as o f
1 2
Ma xim isin g
7
8
3
10
4
Blowup A
Urban Formal Space via architectural planting
2
18mm resin-bound gravel, SureSet aggregate diameter 6mm) 50mm Porous Lean Mix 1:10
3
160 mm gravel (diameter: 20mm)
4
200 mm Ballast MOT Type 2
5
Consolidated subsoil
6
Myriad paving (600 x 300 x 80). Details refer to above
7
160 mm gravel (diameter: 80mm)
8
90mm in-situ concrete
9
5mm thick aluminium edging
10
84mm thick gravel (diameter: 20mm)
1
6
5
Section A - A’ 1:250
Myriad combined concrete flag textured paving. Tone: Midnight (10% surface)
Strengthening Unity of the Linear Space through the Use of Timber
Piccadilly Central
Train Station
Plan View 1:10
Plan View of a Planting Bed 1:50 1 4 nos. Rudbeckia hirta ‘Toto’
3 nos. Calamagrostis x acutiflora ‘Overdam’ Calamagrostis x acutiflora ‘Overdam’
26 nos.
2L
8 nos.
2L
16 nos.
Carpinus betulus (standing separetly)
Carpinus betulus (canopies linked)
9cm
13 nos.
Rudbeckia hirta ‘Toto’
Size (m)
Total No.
Species
Total No. Pot Size
Species Brunnera macrophylla
26 nos. Brunnera macrophylla
Tree Planting Schedule for Blowup A
Planting Schedule for One Planting Bed
Girth (mm)
4.5 (H) x 2 (W)
100 - 120
4.5 (H) x 2 (W)
100 - 120
Remarks 2.2m clear trunk
Timber Edge
2.2m clear trunk, 3m centre to centre spacing
16 nos.
Herbaceous Planting 2 nos. Rudbeckia hirta ‘Toto’
Special forms of trees providing interest of all seasons
A
A’
8 (H) x 6 (W)
5 nos.
Platanus x hispanica
140- 160
Aluminium Edging Raised canopy, leaving a clear trunk of 3.5m
5 nos. Rudbeckia hirta ‘Toto’
a’
a
2 nos. Calamagrostis x acutiflora ‘Overdam’ Calamagrostis x acutiflora ‘Overdam’
Rudbeckia hirta ‘Toto’
Resin-bound Gravels
Section 1- 1’ 1:50 Section a-a’ 1:10
3 nos. Calamagrostis x acutiflora ‘Overdam’
1 300mm topsoil, complying with
2 nos. Rudbeckia hirta ‘Toto’ 1’
Blowup 1:1
6
BS 3882:2007 2 Uncompacted subsoil
200mm Ballast MOT Type 2
11
7
Consolidated subsoil
10
3 18mm resin-bound gravel, SureSet
8
Q-Deck® Lunawood strip 2400mm x 50mm x 25mm
aggregate diameter 6mm)
4 50mm thick Porous Lean Mix 1:10
9
5 160mm thick gravel (diameter: 20mm)
Brunnera macrophylla
Timber plug (dia 18mm)
11
8
90mm deep in -situ concrete 9
5mm thick stainless steel edging welded with bolts (1m centres distance), screwed to in-situ concrete Refer to blowup
10
3 4
Piccadilly Central
5
Greater Volume of Space by raising canopies of Platanus x hispanica
Section B - B’ 1:250
Blowup B
1
6 2 7
Train Station
Plan View 1:40
B’ 1 1000mm topsoil, complying with BS
3882:2007, soil surface 20mm below top of planter wall
Section 2-2’ 1:50
Autumn colours with swaying Stipa tennuissima welcoming visitors
Plan View of Tree Pit 1:50 Resin-bound gravel 2 B
2 3mm thick metal wall, powder-coated
with red. Topping the internal concrete planter
Canopy of Platanus x hispanica
Planting Schedule for One Tree Pit Species Total No. Pot Size
Verbena bonariensis
Geranium ‘Philippe Vapelle’
50 nos.
9cm
3 50mm thick, 175mm tall in-situ
Verbena bonariensis
6 nos.
9cm
4 Tritanial Granite, flamed textured slab
Geranium ‘Philippe Vapelle’
B’
b’
concrete planter wall sitting on 70mm thick in-situ concrete foundation (400mm x 100mm x 50mm) sitting on 5mm mortar bed
b
5 100mm well consolidated hardcore
Tree Planting Schedule for Blowup A Species
Size (m)
Total No.
Amelanchier lamarckii
4 nos.
3.5 (H) x 3 (W)
6
Girth (mm)
Remarks
N/A
Compacted soil
7 20mm thick high alumina cement
Multi-stem, branching out from ground. 5 -7 Stems.
with glass finish
8 Q-Deck® Lunawood strip (2400mm
x 100mm x 25mm) fixed to a 5mm thick stainless steel that is welded to the L-shaped stainless plate at an interval of 1m centre to centre distance.
2’ 15 nos.
Platanus x hispanica
8 (H) x 6 (W)
140- 160
Raised canopy, leaving a clear trunk of 3.5m
5mm thick, L-shaped stainless steel sitting on 90mm deep insitu concrete. 9 18mm resin-bound gravel, SureSet aggregate diameter 6mm) 9
10
160 mm thick gravel (diameter: 20mm)
11
50mm Porous Lean Mix 1:10 Section b-b’ 1:10
Central Cultural Space Blowup C Section C - C’ 1:250
160mm thick gravel (diameter: 20mm)
12
200 mm Ballast MOT Type 2
13
2
7
8
14
Consolidated subsoil
15
Overflow drain to be specified by the Engineer
9
10
Sparse Birch Planting
Train Station
11
15
4 1
12
3 5
13
6 14
Areas and Nos. of Stipa tennuissima
Planting Schedule for Blowup C Type
Summer meadow in dense birch planting
117m2 468 nos.
Species
Herbaceous
9cm pot
946 nos.
Stipa tenuissima
Girth (mm)
Remarks
N/A
Blowup 1:2
Plan View 1:10 Tree
C
Size (m)
Total No.
Betula nigra
11 nos.
C’
6 (H) x 5 (W)
Multi-stem, branching out from ground, at least 5 stems.
N/A
c 119m2 476 nos.
Tree
Betula pendula
16 nos.
7 (H) x 3 (W)
100 - 120
Tree
Prunus serrula
2 nos.
8 (H) x 6 (W)
140- 160
Raised canopy, leaving a clear trunk of 3.5m
Piccadilly Central
c’
1
1000mm topsoil, complying with BS 3882:2007 on uncompacted subsoil
2
3
Tritanial Granite, flamed textured slab (400mm x 100mm x 50mm) sitting on 5mm mortar bed 100mm thick in-situ concrete
4
100mm well consolidated hardcore
7
5 Compacted topsoil
Casual Enclosed Space by planting birch trees densely
Section D - D’ 1:250
Q-Deck® Lunawood strip (2400mm x 100mm x 25mm) fixed to a 5mm thick stainless steel that is screwed to the insitu concrete. 50mm cantilevered (see blowup) at the edge. Seperated from the L-shaped edging.
6
20mm thick high alumina cement with glass finish
10
50mm Porous Lean Mix 1:10
11
160mm thick gravel (diameter: 20mm)
12
200 mm Ballast MOT Type 2
13
Consolidated subsoil
8
Section c-c’ 1:10
1
6
9 10
Train Station
Blowup D
5mm thick, L-shaped stainless steel sitting on 90mm deep in-situ concrete 9 160 mm thick gravel (diameter: 20mm) 8
11
7 12
13
2
Areas of Meadow Mix
Meadow Mix in Blowup D Nos. in Nos. in % Area A Area B
Species Aster divaricatus Heuchera villosa Phlox divaricata Polemonium reptans Aster x herveyi ‘Twilight’ Gillenia trifoliata Rudbeckia fulgida var. deamii Solidago caesia
(Density of plants: 4 nos./m ) 2
Area A 142m2 D
D’
10 5 30 20 10 15 5 5
14 7 43 28 14 21 7 7
18 9 54 36 18 27 9 9
1
Nos. in Area C
Total No.
3 1 8 5 3 4 1 1
35 17 105 69 35 52 17 17
3 4 5
Tree Planting in Blowup C
Area B 179m2
Species
Countless blossom of bulbs in Spring
Total No.
Betula nigra
Area C 26m2
4 nos.
Size (m)
Girth (mm)
6 (H) x 5 (W)
N/A
Betula pendula
120 nos.
Fagus sylvatica
1 nos.
6 (H) x 4 (W)
100 - 120
Taxodium distichum
4 nos.
3.5 (H) x 2 (W)
90
min 4 (H) x 2 (W)
Remarks Multi-stem, branching out from ground, at least 5 stems.
Plan View 1:40
Timber strip capping at corners
min 80
Timber strip capping at sides Casual Semi-Enclosed Space with dominantly coniferous planting
Section E - E’ 1:250 Train Station
Blowup E
d
New Public Park
Areas of Bulbs Scilla verna
Planting Schedule for Blowup D
(Density: 9 nos./m2)
477 nos. 53m2
Type Herbaceous
180 nos. 20m2
Tree
E
d’
657 nos. 73m2
E’
Tree
Species Camassia leichtlinii subsp. Suksdorfii
Betula pendula
Fagus sylvatica
Total No.
Size (m)
Girth (mm)
7623 nos.
N/A
N/A
15nos.
3 nos.
min 4 (H) x 2 (W)
6 (H) x 4 (W)
Remarks
min 80
1
1000mm topsoil, complying with BS 3882:2007, on uncompacted subsoil
2
100mm clean furnace clinker, compacted. Top surface blinded with fine hoggin, watered and rolled to thickness of 25mm
3
100mm hoggin with maximum particle size of 50mm watered and rolled
4
Compacted subsoil
5
Q-Deck® Lunawood strip (2400mm x 100mm x 25mm) fixed to a 5mm thick stainless steel that is screwed to the insitu concrete. 50mm cantilevered at the edge. Well consolidated hardcore 420mm thick in-situ concrete
8 6
100 - 120
7
549 nos. 61m2 423 nos. 47m2
Tree
Pinus sylvestris
37 nos.
8 (H) x 5.5 (W)
140- 160
Tree
Quercus robur
1 nos
9 (H) x 7 (W)
160 - 180
Tree
Sorbus torminalis
5 nos
4 (H) x 3 (W)
100 - 120
4.5m clear trunk
Section d-d’ 1:10 5 6
7
1
2
8
3 4
20mm thick high alumina cement with glass finish
5337 nos. 593 m2
*All Blowup above are at 1:200
Chi Kong YEUNG 130120249