TABLE OF CONTENTS - The Professional Green Building Council

Theme B: Creating a livable, healthy and environmentally viable cities3.2 Environmental SustainabilityIn response to the global agenda for environmentally sustainable development, thedesign embodies impetus towards maximizing environmental comfort, resourcesconservation and mitigating environmental loading on the neighbourhood. Theareas for improvement that have been identified are -3.2.1 Natural Ventilation for PTI and CarparkThe Development has been designed to utilize natural resources (e.g. wind) toprovide a healthy environment for the users. For instance, natural ventilation willbe utilized at the PTI and carpark with reduced length of PTI’s enclosure throughopen foyer design and maximized opening on carpark walls. As a result, associatedcapital and running costs of the mechanical ventilation system can be reduced.3.2.2 Enhancement of Pedestrian Wind MicroclimateFurthermore, to receive the onshore wind from the waterfront of Yau Tong Bay inthe hottest month, a portion of the existing vacant Shopping Spine structure overthe MTR station that borders the Level 4 plaza will be removed to enhancepedestrian wind microclimate.3.2.3 Hybrid Ventilation for Shopping ArcadeEnergy conservation is another key theme for the design of the Development so asto minimize environmental impact. To reduce the energy consumption for airconditioning,hybrid ventilation will be utilized at the shopping arcade. Thiscombines the use of mechanical ventilation in extreme seasons (e.g. peak summer)and natural ventilation in mild seasons (i.e. spring and autumn). Motorizedopenings will be installed at lower level of the curtain wall for entrainment of coolambient air. Similarly the same type of openings will be incorporated at theskylights for hot air to exhaust out (Fig. 3).203