Basin Bridge Project: Technical report 3: Urban and ... · The Don Neely Scoreboard A D E L A I D E R O A D RUGBY STREET Boundary fence Cambridge Tce Corridor Kent Tce Corridor embankment

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basin reserve / design report

Timber screen precedents for materiality and design of ‘catching cradle’ roof form

Translucent screen precedents for screens to northern facade and surrounds to vertical circulation cores

PROPOSED MATERIALS PRECEDENTS

fi g.41 fi g.42

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The relocation of the Dempster Gate Structure

The retention of the existing Dempster Gate structure on its existing site is not seen to be compatible (from functional, architectural and heritage points of view) with the objectives and proposed design directions for the new Northern Gateway Building. It is therefore proposed to relocate this gateway structure elsewhere within the Basin Reserve, where its heritage values and associations can be retained/ reinterpreted. The proposal is to relocate the structure beside the existing J.R.Reid Gate at the south of the Basin. This location has been selected because it enables the structure to retain its gateway function, and retain an association with its partner, the J.R.Reid Gate. Together they will form an enlarged, improved southern gateway from Newtown to balance the capacity and scale of the proposed northern Gateway.It is proposed to relocate the gate structure to the west of the existing J.R.Reid Gate. The relocation will be in conjunction with footpath modifi cation on the street side and some minor ground reconfi guration within the Basin Reserve to enable access and accommodate appropriately scaled threshold spaces on either side of the new combined gate.

P24


J. R. REID gateC. S. DEMPSTER gate Scoreboard

Toilets

The Don Neely Scoreboard

ADELAIDE ROAD

RUGBY STREET

Boundary fence

Cambridge Tce Corridor Kent Tce Corridor

embankment embankment

PROPOSED SOUTHERN GATE PLAN

Ground level South Entry_1:500 @ A3

fi g.43

A

B

fi g.44

45m5

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PROPOSED SOUTHERN GATE PERSPECTIVES

fi g.45_indicative exterior street view of southern entry from end of Adelaide Rd fi g.46_indicative view of southern entry from inside Basin Reserve

C.S. DEMPSTER GATE J.R. REID GATE

fi g.47_SOUTH ELEVATION_1:200 @ A3

RELOCATED C. S. DEMPSTER GATE EXISTING J. R. REID GATE THE DON NEELY SCOREBOARDSCOREBOARD

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BASIN RESERVE NORTHERN GATEWAY BUILDINGDESIGN REPORT APPENDIX

Appendix 1 - 55m Northern Gateway Building

Appendix 2 - 65m Northern Gateway Building

Appendix 3 - 45m & 65m Northern Gateway Screen

Appendix 4 - Visual distraction analysis

Appendix 5 - Existing and proposed area diagram

Appendix 6 - Design Development Summary

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P27


The 55M Option for the Northern Gateway Building utilises the same overall design strategy of three inter-related components as both the 45m and the 65m options. This radial structure extends eastward from the eastern end of the Vance Stand, toward the existing concrete toilet structure. It is approximately 55m in length and approximately 11.9m high to the highest point. It incorporates Ground + 1 fl oor with a sheltered roof-top deck.

The eastward extent of this proposal is approximately 10m longer on the eastern side than the 45m option, such that its eastern extent extends beyond the western edge of the Kent Terrace Corridor by approximately 10m. Although this additional length is not seen to be necessary for mitigation against batsmen’s distraction (on the basis of the analysis in Appendix 4), it is acknowledged that the additional length would provide some additional mitigation against views of the bridge structure/ traffi c from some viewpoints inside the Basin. It would also provide for additional players’ amenity within the building, potentially allowing the players’ lounges and facilities to be housed on one Level (Level 1).

Although this option encroaches within the Kent Corridor, diminishing the green space connection on this side, it does allow a proportion of landscape/ vegetation within the corridor to be retained. (Including an established pohutukawa). This retains some reading of the green/ open space characterising the eastern side Basin from intermediate and closer approach views along Kent Terrace. It also retains some sense of the green space link between the Basin with the extended Memorial Park space.

The Ground level components, modulated by the structural fi ns supporting the building above, include a large new public gateway between the new Kent/ Cambridge Entry Plaza and the Basin. This is bounded on the west by a ticketing / concessions enclosure and on the east by the entry lobby to the upper level spaces. The area to the west of the entry lobby is proposed to remain visually open, with visually permeable screens fi xed between the structural fi ns. While the spaces between the fi ns could accommodate built modules or caravans to sell food and drink during match time, and the screens could be closed off during match time to limit views and wind, the ‘default’ set up would provide for a level of visual permeability through to the Ground.

Level 1, forming the lid over the new public gateway, houses players’ lounges, players’ changing, toilets/ kitchen amenity, and area for offi cials, player’s families, and/or other selected groups.The design of this radial space is as an extension of the R.A.Vance Stand lounges, with the front (South) elevation facing the pitch to be predominantly glazed, and incorporating recessed sheltered outdoor players’ seating areas adjacent to their

lounges. This option proposes replacement of the existing Player’s Pavilion structure to provide a more visually cohesive and functionally more integrated and fl exible spatial structure at Level 1 than would be possible with the retention of this structure. This would provide the potential to physically connect to the existing R.A.Vance Stand Level 1 lounges/ facilities. The new built component replacing the existing Players’ Pavilion is designed as a new transitional ‘box’ fl oating over the new entry serviced from the existing carpark/ service area to the east of Vance. The design character of this component integrates with the existing Vance podium, and houses the ‘enclosed’ changing/ toilet components of players’ amenity for both home and away teams.

Level 2 of the new structure is accessed by stairs/ lift, serviced by adjacent facilities, and incorporates a roof top deck sheltered by the screen/ pergola. The North façade of the upper levels extend an active ‘fascia’ to the gateway portal, incorporating windows and patterned vertical screening mitigating solar gain and moderating the visual interface between the players’ spaces and the public entry.

The roof pergola form references the form and character of the ‘catching cradle’ and contributes an expression of pavilion. It is an articulated roof form, complementary but secondary to the articulated Vance Stand roof. This new roof form conveys a message of cricket and contributes a level of identity and civic scale to this new urban gateway, commensurate with the scale and quality of the Basin Reserve, the new landscaped threshold space, and Kent/ Cambridge corridors beyond.

R A VANCE STAND

NEW PLAYER ENTRY

PLAYER DROP OFF

PERIMETER CIRCULATION

STRIP

BASIN BRIDGE

EXISTING TOILETS

KENT TCE CORRIDOR

CAMBRIDGE TCE CORRIDOR

Ground Level

R A VANCE STAND

PERIMETER CIRCULATION STRIP

BASIN BRIDGE

KENT TCE CORRIDORCAMBRIDGE TCE

CORRIDOR

EXISTING TOILETS

Level One

Section diagramfi g.49

fi g.50 fi g.51

LEVEL 1

GROUND

LEVEL 2

Change Change

viewing deckoffi cials

Existingchange

Existingchange

Viewing Viewing

APPENDIX 1 - BASIN RESERVE NORTHERN GATEWAY STAND (55M PROPOSAL)

Confi guration and Connection diagramfi g.48

EXISTING R A VANCE ENTRY

NEW STAND ENTRYNEW STAND

ENTRY

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INDICATIVE LEVEL 2 PLAN


INDICATIVE GROUND LEVEL PLAN

ENTRY LOBBY

ENTRY LOBBY

PHYSIO/MEDICAL

OFFICE

POTENTIAL PLAYERS DROP OFF

CHANGING

ACCESS TO NORDWOODROOM

VIEWINGLOUNGE

VIEWINGLOUNGEOFFI-

CIALS

OFFICIALS DECK

CHANGING

EXISTINGTOILETS

EXISTINGCHANGINGROOM


EXISTINGWARM UP NETS

A

B D

E

C

CF

G

G

H

I

IJ

55m proposal fl oor plans_1:500 @ A3

Below is a list of new spaces on the ground level • New covered players’ entry off Buckle St associated with

players’ drop-off on the existing R.A. Vance access lane;• New foyer/lobby for players and offi cials providing access

through to upper levels, the existing changing rooms and warm up facilities in the lower ground level of the R A Vance Stand, and ‘run-on’ access to the pitch;

• New physio/medical and offi ce space• New reconfi gured northern public entry gate• Relocation of existing pohutukawa tree to allow effi cient use

of the widest part of the available site;• reconfi gured secure fi re egress from R A Vance stand exiting

at Buckle St.

Level 1• New changing rooms, toilets and showers;• Possible connection through to R A Vance stand;• New terraced players’ viewing lounge [see precedent image

fi g.53];• New dedicated match offi cials and umpires’ space;

Level 2• New dedicated match offi cials and umpires’ space;• New fl exible roof deck viewing area

A

B

C

D

E

F

G

H

I

J

K

K

fi g.53_PLAYERS LOUNGE - MCG Melbourne

LL

fi g.52

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KENT TERRACE

ROOF DECK VIEWING AREA

ROOF DECK VIEWING AREASCULPTURED TIMBER ROOF CANOPYCHANGING ROOMSR A VANCE STAND

SCULPTURED TIMBER ROOF CANOPY CHANGING ROOMS

INDICATIVE NORTH ELEVATION

INDICATIVE SOUTH ELEVATION PLAYERS ENTRY NEW PLAYERS LOUNGE EXISTING TOILETS

CAMBRIDGE TERRACE R A VANCE STANDPLAYERS ENTRY

ELEVATIONS FOR 55M PROPOSAL

fi g.54_NORTH ELEVATION_1:500

fi g.55_SOUTH ELEVATION_1:500

55m option

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COVERED PUBLIC ENTRY

SECTIONS FOR 55M PROPOSAL

fi g.56_SECTION AA_1:250 @ A3 fi g.57_SECTION BB_1:250 @ A3

R A VANCE STAND R A VANCE STAND

BOUNDARY FENCE ACCESS TO EXISTING CHANGING ROOMS

ACCESS TO LEVEL 1 R A VANCE STAND

COVERED PLAYERS ENTRY

55m option

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fi g.58_view looking south west toward new ground entry fi g.59_view looking south east toward new players entry

PERSPECTIVE RENDERINGS FOR 55M PROPOSAL

55m option

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55m option

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P33


The 65M option for the Northern Gateway Building utilises the same overall design strategy of three inter-related components as both the 45m and the 55m options. This radial structure extends eastward from the eastern end of the Players’ Pavilion Building toward the existing concrete toilet structure. It is approximately 65m in length and approximately 12.9m high to the highest point. It incorporates Ground + 2 fl oors.

The eastward extent of this proposal is approximately 20m longer on the eastern side than the 45m option, such that its eastern extent extends beyond the western edge of the Kent Terrace Corridor by approximately 20m. Although this additional length is not seen to be necessary for mitigation against batsmen’s distraction (on the basis of the analysis in Appendix 4), it is acknowledged that the additional length would provide some additional mitigation against views of the bridge structure/ traffi c from some viewpoints inside the Basin. It would also provide for additional players’ amenity within the building, potentially allowing the players’ lounges and facilities to be housed on one Level (Level 1).

The Ground level components, modulated by the structural fi ns supporting the building above, include a large new public gateway between the new Kent/ Cambridge Entry Plaza and the Ground. This is bounded on the west by a ticketing / concessions enclosure and on the east by the entry lobby to the upper level spaces. The area to the west of the entry lobby is proposed to remain visually open, with visually permeable screens fi xed between the structural fi ns. While the spaces between the fi ns could accommodate built modules or caravans to sell food and drink during match time, and the screens could be closed off during match time to limit views and wind, the ‘default’ set up would provide for a level of visual permeability through to the Ground.

Level 1, forming the lid over the new public gateway, houses players’ lounges, players’ changing, toilets/ kitchen amenity, and area for offi cials, players’ families, and/or other selected groups.The design of this radial space is as an extension of the R.A.Vance Stand lounges, with the front (South) elevation facing the pitch to be predominantly glazed, and incorporating recessed sheltered outdoor players’ seating areas adjacent to their lounges. In this option, with the existing Players’ Pavilion structure remaining, the new building is a stand-alone facility (not physically connected to the Vance Stand). To provide additional visual mitigation for the area above the existing Player’s Pavilion, a separate screen is proposed to ‘wrap’ around the north side of that building.Level 2 of the new structure incorporates extended lounge or offi cials’ space under the pergola roof. This is set back from the southern edge, incorporating an extended strip of sheltered seating facing the pitch, with an area of extended open space under the pergola at each end. This set back on the front and ends is seen as a critical design aspect to maintain a level of articulation to the roof/ screen element, maintaining a level of lightness and modeling to the top of the building.

The North façade of the upper levels extends an active ‘fascia’ to the gateway portal, incorporating windows and patterned vertical screening mitigating solar gain and moderating the

R A VANCE STAND

NEW PLAYER ENTRY

PLAYER DROP OFF

PERIMETER CIRCULATION

STRIP

BASIN BRIDGE

EXISTING TOILETS

KENT TCE CORRIDOR

CAMBRIDGE TCE CORRIDOR

Ground Level

R A VANCE STAND

PERIMETER CIRCULATION STRIP

BASIN BRIDGE

KENT TCE CORRIDORCAMBRIDGE TCE

CORRIDOR

EXISTING TOILETS

Level One

Section diagramfi g.63

fi g.64 fi g.65

LEVEL 1

GROUND

LEVEL 2

Change Change

viewing deck

viewing lounges viewing deck

Existingchange

Existingchange

Viewing Viewing

65m

APPENDIX 2 - BASIN RESERVE NORTHERN GATEWAY STAND (65M PROPOSAL)

Confi guration and Connection diagramfi g.62

EXISTING R A VANCE ENTRY

NEW STAND ENTRY

visual interface between the players’ spaces and the public entry.

The roof pergola form references the form and character of the ‘catching cradle’ and contributes an expression of pavilion. It is an articulated roof form, complementary but secondary to the articulated Vance Stand roof. This new roof form conveys a message of cricket and contributes to a level of identity and civic scale to this new urban gateway, commensurate with the scale and quality of the Basin Reserve, the new landscaped threshold space, and Kent/ Cambridge corridors beyond.

ref RT3610.06.13

proposed ground fl oor_1:500 @ A3

Below is a list of new spaces on the ground level • New foyer/lobby for players and offi cials providing access

through to upper levels;• New reconfi gured northern entry gate;• New secure serviceable location for temporary food and

beverage vendors;• Existing fi re egress from R A Vance stand retained with

addition of extended perforated metal screen above and below the existing balustrade;

• New planting associated with existing pohutukawa forming new edge to northern boundary of the Basin Reserve;

• New ticketing/concessions support booths.

Level 1• New changing rooms, toilets and showers;• New terraced players’ viewing lounge [see precedent image

fi g.67];• New dedicated match offi cials’ and umpires space.

Level 2• New fl exible viewing lounge;• New kitchen and toilet facilities;• New fl exible roof deck viewing area.

fi g.67_PLAYERS LOUNGE - MCG Melbourne

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INDICATIVE GROUND LEVEL PLAN

ENTRY LOBBY

LOBBY

LOBBY

TEMPORARY FOOD VENDORS

POTENTIAL PLAYERS DROP OFF

TICKETING+SUPPORT

CHANGING

VIEWINGLOUNGE

VIEWINGLOUNGE

VIEWINGLOUNGE

KITCHEN+ TOILET DECK

DECK

VIEWINGLOUNGE CHANGING

EXISTINGTOILETS

EXISTINGPLAYERS’ PAVILION

EXISTINGPLAYERS’ PAVILION



EXISTINGWARM UP NETS

fi g.66

65m option

AB

CD

A

B

C

D

E

E F

F

G

GG

H

HH

I

I

J

JJ K

K

LL

L

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P35


KENT TERRACE

ROOF DECK VIEWING AREA

ROOF DECK VIEWING AREASCULPTURED TIMBER ROOF CANOPYPERFORATED METAL SCREENR A VANCE STAND

SCULPTURED TIMBER ROOF CANOPY EXISTING PLAYERS’ PAVILION

INDICATIVE NORTH ELEVATION

INDICATIVE SOUTH ELEVATION EXISTING PLAYERS’ PAVILION NEW PLAYERS’ LOUNGE EXISTING TOILETS

CAMBRIDGE TERRACE R A VANCE STANDPERFORATED METAL SCREENfi g.68_NORTH ELEVATION_1:500

fi g.69_SOUTH ELEVATION_1:500

ELEVATIONS FOR 65M PROPOSAL

65m option

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P36


COVERED PUBLIC ENTRY

fi g.70_SECTION AA_1:250 @ A3 fi g.71_SECTION BB_1:250 @ A3

R A VANCE STAND R A VANCE STAND

BOUNDARY FENCE EXISTING PLAYERS’ PAVILION PLAYERS VIEWING LOUNGECORPORATE VIEWING LOUNGE

PERFORATED METAL SCREEN

SECTIONS FOR 65M PROPOSAL

65m option

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65m option

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P38




65m option

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P39


APPENDIX 3_ALTERNATIVE 45M & 65M NORTHERN GATEWAY SCREEN / PERGOLA ONLY DESIGN OPTIONS

On the basis that the upper level screen and pergola structure is the element providing the visual screening of traffi c on the bridge (when viewed from the pitch), and can also, in conjunction with lower level fi ns and structure, provide a new gateway to the Basin Reserve, this ‘Screen Only’ option has been developed as a lower intervention option.

This option has been shown in both 45m and 65m versions

This option comprises:

1. The upper level screen and pergola structure which provides visual screening of traffi c on the bridge (when viewed from the pitch), shelter to the extended gateway area, and a formal gateway to the Ground.

The roof pergola form references the form and character of the ‘catching cradle’ and contributes an expression of pavilion. It is an articulated roof form, complementary but secondary to the articulated Vance Stand roof. This new roof form conveys a message of cricket and contributes a level of identity and civic scale to this new urban gateway, commensurate with the scale and quality of the Basin Reserve, the new landscaped threshold space, and Kent/ Cambridge corridors beyond.

2. The Ground level components, include the structural fi ns whcih support the screens and pergola above, and defi ne a series of new gateways. These are bounded on the west by a ticketing/ concessions enclosure (replacing the existing Player’s Pavilion). In the 65m option, where the structure extends eastward of the western extent of the Kent Corridor, the spaces between the fi ns at ground level would be enclosed with permeable screens, in the same manner as the 55m and 65m building options.

While this option would provide a similar extent of visual mitigation of vehicles on the bridge (when viewed from the pitch), it is ‘thinner’ and more visually permeable through its lower and mid- levels, and other than an improved northern Gateway, would not provide other functional amenity in relation to the Basin Reserve.

fi g.76_Timber canopy and screen design extending 45m from the RA Vance stand fi g.77_Timber canopy and screen design extending 65m from the RA Vance stand

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Report to NZTA

29/11/12

Subject: NZTA Basin Reserve Screen Sizing

1. My name is Gordon Frank Sanderson and I am an Associate Professor in the Department of Medicine, Ophthalmology Section, Dunedin School of Medicine. My specialities are visual optics and physiological optics.

2. I have been asked to report on the potential visual distraction to cricket players caused by traf ic moving on the proposed lyover around the Basin Reserve.

3. I have also been asked to comment on the possible mitigation of this effect.

4. Before considering this subject it is important to have a rudimentary understanding of the relevant principles of vision. The human visual process consists of two quite distinct mechanisms. There is a central visual mechanism (the macular area) which is responsible for ine detail and colour vision; this is generally associated with the term visual acuity. This function is performed by retinal receptors which are commonly referred to as cones. The central macular area which is responsible for ine discrimination occupies roughly 5° of the central visual ield. The remainder of the visual ield is predominately occupied by receptors referred to as rods. They are primarily sensitive to movement and vision in reduced illumination.

5. The major issue posed by the moving traf ic on the proposed Basin Reserve lyover is whether or not this motion will cause visual distraction to a batsman standing at the South end of the pitch facing a bowler from the stand end.

6. The ield of view of a person standing in this position being approximately 180° in horizontal meridian, would cover approximately half of the ground, including the stand and a large sector of the proposed lyover. The traf ic on the lyover particularly that travelling in a Westerly direction, ie in the lane closest to the Basin Reserve would be visible

from this location. The higher and larger vehicles being the most visible.

7. The question then arises whether or not the traf ic motion is suf iciently distracting to the batsman prior to or during a delivery, to cause him or her to misplay the stroke.

8. Conventional “sight screens” consist of white or light coloured moveable boards, approximately 6 metres square, which are capable of being adjusted to locate them immediately behind the bowler. They are designed to enhance the batsman’s view of the bowler’s hand at the moment at delivery by contrasting it against a light background. Screens are also intended to mask any movement of the crowd or any other moving objects in the vicinity of the bowler’s arm. Passage in front of the sight screens during play, especially at the time of delivery, is considered “illegal” and can be a reason for the umpires to delay the delivery of the ball and the progress of the game.

9. Movement of the crowd in the vicinity of the sight screen is not prohibited nor prevented. This would suggest that in the game of cricket, movement in a location beyond the 6x6 metre sight screen is of lesser consequence than movement in that central area. Assuming the average distance from the batsman to the sight screen to be approximately 75 metres, the angular subtense of one sight screen is 4° 36’. Doubling it, which I understand is common practice, more than covers the central 5° or the optimal visual angle, subtended by the macular region of the retina.

APPENDIX 4_VISUAL DISTRACTION ANALYSIS

10. It is my opinion that it is safe to conclude that although the activity of moving traf ic will be visible in the batsman’s peripheral vision, the fact that the batsman is concentrating on a relatively small area, suggests that this will not be a signi icant distraction; nor is it within the central 5°. The rationale to support the visual insigni icance is is partly due to decreased visual acuity in the peripheral retina [Low, F.N.: The Peripheral Visual Acuity of 100 Subjects , Amer J Physiol 140:83-88, 1943] and partly to the visual inattention phenomenon [A.P. Hillstrom, S. Yantis Visual motion and attentional capture PerceptPsychophys., 55 (1994), pp. 399–411]. Which suggests that it is possible to be completely oblivious to movements or activities occurring in the peripheral ield of view when concentrating on a task in the central visual ield.

11. It is also the case that random movement, the sort of movement that might be expected from a crowd at a cricket game, is more visually stimulating than the regular and predictable motion of traf ic on a lyover. It cannot be denied that the peripheral retina is sensitive to movement as far out as the extreme periphery, but the movements need to be of a sudden nature to attract attention.

12. For this reason I recommend that a screen with a sector of angular subtense 20° be constructed to screen off the lyover from the batsman’s point of gaze (visual axis). That this screen should be being contiguous with the edge of the stand. In my opinion this would be suf icient to eliminate any signi icant movement in the batsman’s central ield of view caused by moving traf ic.

13. The other 20° in the opposite direction would effectively be screened from the batsman by the stand and also screen the traf ic from the batsman’s eye, thus achieving a total screening effect of 40° horizontally and of suf icient height to mask even the largest vehicle. In my view this would suf ice to screen visually signi icant motion from the eye of the batsman standing at the south end of the Basin Reserve cricket ground. Some further mitigation of vehicle motion will be produced by the trees and other foliage beyond the sector of the proposed screen. The 40 degrees horizontal ield of view that is therefore needed to be screened is shown on the attached drawings.

14. There are a number of caveats to this report: Emergency vehicles particularly those of vivid colours and/or equipped with lashing lights may well cause a visual distraction beyond the area proposed to be screened off. Similarly re lections off the side windows or sides of vehicles passing through the unscreened area may cause a transient visual distraction.

GF Sanderson 29/11/12

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View from southern end of the central pitch


P41


fi g.78

ref RT3610.06.13

P42



fi g.79

View from southern end of the eastern pitch

ref RT3610.06.13

APPENDIX 5_EXISTING AND PROPOSED SITE AREA DIAGRAM

P43


EXISTING 2013Total Site Area_33,013m² (outlined in Red)Total Built Area_2903m² (approx)Total Carpark + Access Drive_3,497m² (approx)

Total Site Coverage approx 19.4%

PROPOSEDTotal Site Area_33,013m² (outlined in Red)Total Built Area_3,256m² (approx)Total Carpark + Access Drives_3,233m² (approx)

Total Site Coverage approx 19.7%

relocated Dempster Gate tbc

new basin reserve northern gateway building

1 : 1000Existing site area plan

1 : 1000Proposed Site Area Planfi g.80 fi g.81

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P44


APPENDIX 6_EARLY SCREEN + STAND DEVELOPMENT

Elevated Screen StudyThe scenarios in this package of work test 3 screen options as methods of mitigating potential visual distraction for a batsman facing a delivery from the northern end.The early investigation into potential structures to provide mitigation to views of moving traffi c from the pitch focused on screens located close to the source of the distraction

1. Screen attached to the Basin BridgeThis scenario consisted of a 3m high (above the bridge barrier) screening element attached to the bridge structure. This is the largest of the 3 scenarios tested due the screen being the closest to the source of the distraction. The screening elements, while impermeable to views from the pitch, were designed to allow motorists glimpses of the Basin Reserve and the Carillon beyond.While this element would be capable of providing the specifi c mitigation called for, it was seen to introduce signifi cant negative visual effects in its combination with the bridge structure because of its location in relation to NWMP, and broader views from the Cambridge Corridor.

2. Elevated screen located above entry gatesThis scenario consisted of an elevated screen located above the existing C.S. Dempster Gate extending approximately 40m from the existing Players’ PavilionThis location was seen as the most positive of the three options tested in this early investigation, as it was least conspicuous from viewpoints inside and outside of the Basin Reserve, and had the greatest potential to contribute additional positive effects in terms of improving the Gateway to the Grounds. However, while it was recognized that this screen element could be developed, it was considered that as a screen only it would read as a ‘band-aid’ in the air. Therefore subsequent design development focused on providing better integration of this screen with elements/ functions of the Basin Reserve and Gateway.

fi g.85 OPUS sketch of 3 screen optionsfi g.84 Sketch of possible screen attachment to bridge structure

fi g.83 Option 1_3m bridge barrier extension Option 2_Screen above entry gate Option 3_Screen above boundary fence

fi g.82 Plan showing 3 screen options

3. Elevated screen located above cricket boundary fenceSimilar to the scenario above, this design was the smallest of the 3 options explored and consisted of a narrow band set 8m above the existing cricket boundary picket fence. This could be interpreted as a high level extension of the existing cricket sight screen.While a screen in this location could provide the specifi c mitigation called for with the smallest structure, because of its proximity to the viewing point on the pitch, it was seen to contribute signifi cant negative visual effects from views within the Grounds, and from the Vance Stand. In addition it was seen to undermine the Gateway, particularly when approached from the North.

ref RT3610.06.13

warm up

area=50 m²Officials

area=103 m²Home Team Change

area=101 m²Away Team Change

lobby

area=78 m²Management

store

Tickets

Secure Players area

Players entry Primary Basin Reserve Entry

Kent Terrace corridorCambridge Terrace corridor

area=62 m²Home Team

area=61 m²Away Team

lobbykitchen

area=39 m²Officials

Kent Terrace corridorCambridge Terrace corridor

P45


North03 SEPT 2012 Ref. RT36 rev A

DRAFT

Bridge

R A Vance

Stand

Kent Terrace

corridorScenario 4_180m2

Assumptions:

�� Upgrade existing players lounge.

�� Connect to RA Vance Stand

�� Screen extends over Dempsey gate

Issues:

�� Does not meet area requirement for players facilities

�� Impact on existing gate

STAND STUDY

Ellice Street Property Line

View 1_Northern aerial view

View 2_Kent Tce

View 3_Southern entry gate

fi g.89 view from Kent Terrace looking south west towards new basin reserve gateway buildingfi g.88 view from eastern embankment looking west toward RA Vance Stand and new northern gateway building

fi g.87 Outline sketch of elevated screen

fi g.86 Ground Floor and level 1 plans of scheme

In response to review and feedback of the early screen investigations, the option below was the fi rst option tabled investigating an integrated screen and building structure.

Stand and Screen Study

The new Players’ Facility building:• The size and location of the building component is set by

providing two players’ lounges (approximately sized to the existing players’ lounges) and an offi cials’ room on Level 1, with other amenities such as ticketing and concession on the ground. The plan set-out of the structure in this option is restrained to the east by the western edge of the Cambridge Corridor, and the height is constrained by view lines from the R.A.Vance stand looking over the top towards the pitch.

• The architectural form extends the podium line of the R.A.Vance stand with a strong directional focus on the pitch. The building would express a focus at Level 1 southward towards the pitch, providing views of the game for the players’ lounges. The north side would integrate with a new pergola structure providing an extended northern gateway for the Basin. It would include public seating and shelter at Ground level, with a large window overlooking the new Entry Plaza at the upper level.

The screen element:• Although visually impermeable when viewed from the pitch, it is

sized to cover the required area to prevent the visual distraction for the batsman.

• It has some translucency and ‘openness’ when viewed from other angles- particularly the pedestrian approach around the internal west side of the Basin, and the vehicle/ cycle/ pedestrian approach from the east on the bridge, and the ground level outside the Basin. This openness could be adjustable, via louvre controls, so there is a clear difference between ‘game mode’ and other.

• The screen is proposed to have two distinct sides. The internal basin side is proposed as formed timber slatted louvres- referencing the language of picket, or ‘catching cradle’ (refer precedent image). If adjustable, the louvres, when closed, could also include a game signage component. The external side of the screen as proposed is permeable aluminium sheet or similar, with a more urban scale and materiality, and potentially a macro graphic integrated as indicated.

• The double sidedness would allow for internal lighting, maintenance, operation (if adjustable) or for commissioned art installations.

The new gateway• This is a new wider, deeper gateway with increased sheltering and with the ability to confi gure fl exibly.• The scale and location of the gate is set in relation to the new entry plaza area outside the Basin

Reserve.

The Existing C S Dempster Gateway• In this option, the C.S.Dempster Gate is shifted to the east, to better align with the new Plaza space

to give it some space and autonomy in relation to the new structures, and to assist framing the new gateway against the new building.

APPENDIX 6_EARLY SCREEN + BUILDING STRUCTURE DEVELOPMENT

Documents

Basin Bridge Project: Technical report 3: Urban and ... · The Don Neely Scoreboard A D E L A I D E R O A D RUGBY STREET Boundary fence Cambridge Tce Corridor Kent Tce Corridor embankment