Located al Wan Po Road and Po Hong Road, Tseung Kwan O, the indoor Velodrome cum Sports Centre will provide a world-class training base for cyclists and an international cycling competition venue when finished in 2012. In addition to its primary function, this building will also provide local amenities to the Tseung Kwan O residents.

The Velodrome is located between the existing Tseung Kwan O Sports Ground and the future Town Park, which comprises an artificial lake, landscaped terrace, central lawn, elderly corner, children's play area, amphitheatre and a skateboard park.

Constraints and Challenges
There are a numbers of residential towers along Wan Po Road and Po Hong Road. Public bicycle tracks surround and connect the site to other parts of Tseung Kwan O. Visual impact of the Velodrome to the residents, noise generated from the skateboard park and amphitheatre, and integration with the adjoining Sports Ground are the main concerns which had to be fully addressed.

The architect's concept in response to the master planning is to merge the Velodrome building with its neighborhood. Elevated pedestrian walkways are designed to provide a safe pedestrian environment and to promote movement across the site. A cascading landscape deck rises from the parkland and physically connects with the Velodrome. The elliptical form and ribbed roof of the Velodrome building are inspired by the profile of a bicycle helmet. The curvilinear shape helps to reduce the mass of the building from whichever angle you look and successfully blends into the organically shaped parkland.

The sports activities and ancillary functions are located at ground floor, while the arena and cycle track are located above this level. VIP viewing boxes sit above the spectator seating. For the cycle track design, detailed coordination has been taken with a cycle track specialist and the Hong Kong Cycling Association. Together with reference to other international track proportion, the track geometry has been set out to be of Union Cyclist International (UCI) Category 1 standard. The functioning of the Velodrome cum Sports Centre has been considered for its operation as a training base and international cycling competition venue. To facilitate its multiple functions, the arena is capable of accommodating different ball courts at the field, which allows simultaneous cyclist training and recreational ball games activities. Performance and multipurpose events at the field, like concerts, exhibitions or other sports competitions can also be achieved.
Charcoal grey mosaic tiles and aluminium panels are used at the podium, forming a dark base and visually elevating the off-white 'helmet' roof. Graphics with a cycling theme are used at the concourse level. Earth coloured artificial granite floor tiles create a subtle floor pattern on the concourse floor that merge with the landscape. The soffit of the 'helmet' will be lit at night to accentuate the idea of a floating roof. Long ribbons of proprietary standing seam aluminium cladding system are used to form the curved roof. This enables a minimum number of joints and no puncturing of the cladding to be achieved to avoid water leakage problems.

Sustainable Features
The roof is integrated with both photovoltaic and solar panels to generate renewable energy and act as a heat source for the hot water supply system. The design of heating, ventilating and air-conditioning system has been considered to reduce energy consumption, e.g., high efficiency motors are used for the equipment; variable air volume system is adopted to reduce air-conditioning energy; AHU system is equipped with energy recovery wheels so as to pre-cool/warm the fresh air to reduce air-conditioning energy and occupancy sensors for HVAC and lighting system are used in appropriate areas. A 3-metre vertical green wall is used outside the recessed mechanical plant rooms to provide screening and integrate with the walkway of the landscape park. Other environmental concerns will be achieved, like controlling the noise impact with abatement measures; controlling indoor air quality and discharges from exhaust air and cooling tower; using renewable construction materials; and minimising construction waste.

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