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Ken Yeang EDITT Tower'. Protect Notes. 1998 ' Ibid 4 ibid

Yeang's first analysis is concerned with what he describes s response to the site's ecology' carried ou- m relation to a 'hierar^h of ecosystems' From this he concludes that the sle an j'ban ,fcr. culture' condition - 'a devastated ecosystem wrth little of its top soi1

flora and fauna remaining.' * His response ii«s not only ir the rehabilitation of the site's organic mass, but m the introduction of planted facades and terraces which ramp upwards from the ground level to the summit of the tower, m a continuous spiral - a 'lanosca»«-ramp' Detail recommendations are then given for the selection of appropriate planting species, based on a survey of the locality

The concept of the continuous planted facades and terraces in itself, is integral to most of Yeang's projects, but in this case the vertical landscaping occupies an area equal to appro mate'y hat*' the usable area - an extraordinarily h;gh proportion. Therefore the scale of landscaping provision, which is based on species that do not compete with those existing in the vicinity engendering diversity, and most importantly ensuring ambient cooling of the facades, coupled with the continuously shifting organic plan form results in a tower that is literally a landscape-form

Further studies that are applied to the design, and result in specia elements of the architecture, include water-recycling and purification sewage recycling, solar energy use. building materials recycling and reuse, natural ventilation and mixed-mode servicing, and an embodied energy and CO analysis. All of these studies form part of Yeang's ecological design agenda and are integral to the form-grving process, in the main.

For instance, the summit of the tower takes the form of a massive rainwater collector - a 'roof catchment pan', and is accompanied by facade-scallops to catch rainwater run-off - all part of a recycled grey-water system Similarly batteries of photovoltaic panels contribute both to the façade architecture, and crucially to the reduction of electricity demand and cooling load In analysing each system, a contribution is made to a sustainable architecture which has its own-unique identity.

addition to the vertical landscaping, two further aspects of the design content are noteworthy - these include 'Place Making' and 'Loose Fit'. 1 In addition, the overall plan-form is configured with a solar-shielding-wall curvature of elevators, stairs and services on the hot east face, and the design incorporates 'wind-walls' to assist bof internal comfort conditions and that of the skycourts - developing the principles applied in the UMNO Tower. The plan arrangement is also ■J deeply inflected by the extensive use of pedestrian ramps, which provide additional vertical linkage and form part of the expressive language of the architecture.

The ramp-systems are also an important element of Yeang s vertical urbanism strategy, in what he describes as a 'vertical extent of the street', these movement spaces are intended to be lined w street activities such as "... stalls, shops, cafes, performance space*-viewing decks • through the first six major floor levels. The ^ design also incorporates a 'views analysis', to ensure that upp*" occupants have the best of the surrounding vistas of the city

This pUn shows oui survey of the existing vegetation species located »ithin the surrounding areas to the site (surveyed by oui Landscape Architect)

Symbol« d E«*t<ng TV»»« Swrounang it» Sa»

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A crudal urban design isMir m skysciapri .trsiRii is pooi sp.iti.il continuity between street level activities with thosr spaces at the iipper-tloors ot the city's high me towers This is due to the phyw.il compartmentation ol Ikxvs (inherrnt in the skysciapet typssksgy) Urban design involves'place making' In creating vertu .il places .m» design bnngs street lite to the building's upper parts through wide landscaped-ramps upwards from stieet level R.impx ,nr lines! with stieet activities tst.ilK shops cafes, performance spaces, viewing drskv etc V up hi lust si* floors K.inips create .< continuous spatial Nom» Irwii public to less public, .is a vertH.il estension «it the slirrt theieby eliminating the problematic sttatihcation ol ti.>«>is mheienl in .ill l.ill buildings typology High-level hn.lgr linkages are added to conrsec t to neighbounng tmiklmgs lor gieatei utban connectivity

. ,-sa\i a so aoo a toose-fit <v cy and has poss** ch»>ge Of -if Of the tower to offices or apartments. ^ _ x --cs r^sw- v- \V ' 50 vears The novations or v f* ot skveourts \v off ce use

.r; jjtNw 3-0 3^0 tV use or mechanical jointing tc enaNe future neco\-e-s and recycling . X -- eve-.- ties * an e3rh application of the more

___rfx o—.-oes o* s ecotogieal cies^n approach and the

-voN-e-ft o- ^uttj-disdo-! -a-% design teams contributing lectec assessment ot all aspects of the ~ ri recnj'e anc its formation At the same time Yeans; is r* eoectatior a-»d the standards of the mmediate future and r; re-vis of 3 ne green architecture ior materials (Gl Tonne)

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