OUTDOOR ENVIRONMENTAL QUALITY (OEQ)

Question 1

OEQ 1 - OUTDOOR THERMAL COMFORT

Credits: 3

EXCLUSIONS
None

OBJECTIVE
Ensure adequate thermal comfort in recreation Open Spaces and pedestrian zones within the Site.

Answer 1

1 credit point is awarded where there is at least one shaded or covered route connecting the Site to the nearby amenities or transport hub, with the provision of a shaded or covered sitting area along the same route.
_____________________

1 credit point is awarded where it can be demonstrated that 50% or more of the passive Open Spaces and pedestrian zones achieving thermal comfort on a typical summer day at 9:00 am in Hong Kong.

AND

1 credit point is awarded where it can be demonstrated that 50% or more of the passive Open Spaces and pedestrian zones achieving thermal comfort on a typical summer day at 3:00 pm in Hong Kong.

Question 2

OEQ 2 - INTRA-URBAN TEMPERATURE AND URBAN HEAT ISLAND EFFECT

Credits: 4

EXCLUSIONS
None

OBJECTIVE
Reduce the potential increase in intra-urban temperature difference and the Urban Heat Island effect.

Answer 2

1 credit point is awarded where at least 15% of the total Site Area is provided with tree coverage in plan view.

OR

2 credit points are awarded where at least 25% of the total Site Area is provided with tree coverage in plan view (canopy after 10 years)
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2 credit points are awarded where an Intra Urban Heat Island Study is conducted demonstrating that a maximum Intra-Urban Heat Index (difference between T_urban and T_met ) in summer is less than 3.0 °C.

Question 3

OEQ 3 - NEIGHBOURHOOD DAYLIGHT ACCESS

Credits: 1

EXCLUSIONS
None

OBJECTIVE
Minimise the overshadowing of neighbouring properties by the new development.

Answer 3

1 credit point is awarded where daylight access of neighbouring sensitive buildings is maintained to the prescribed level

(Sensitive receivers, extruding bill of plot ratio, PNAP 152 complaint building block)

Building mass: 
Plot ratio (building extrusion) or PNAP 152

Question 4

OEQ 4 - VISUAL QUALITY

Credits: 2

EXCLUSIONS
None

OBJECTIVE
Encourage the provision of recreation Open Spaces with high visual quality.

Minimise potential solar glare from street furniture, infrastructure or building element that lead to hazards or discomfort to pedestrians, motorists or building occupants in the surrounding buildings.

Answer 4

1 credit point is awarded where a Visual Quality Study Report is provided on the provision of recreation Open Space(s) within the Site.

Note:
Assessment of visual quality
8Nos. Photos at 45 degree rotation. Assessment of view and proportion of sky, building and road (or 3D model). Assessment of photo. Add factor/multiplier

_____________________

1 credit point is awarded where a Solar Reflectivity Study is provided for all horizontal surfaces within the Site. If risk of glare exists, an Undertaking Letter, signed by an authorised signatory at director level, shall be submitted by the Applicant to outline the intention to mitigate the potential glare risks in order to secure this credit.

Note:
Horizontal surfaces less than 30 degrees. Sub hours 6am to 6pm everyday. If any glare risk, propose mitigation measures. Identify sensitive receivers

Question 5

OEQ 5 - AIR QUALITY OF OPEN SPACES

Credits: 2

EXCLUSIONS
None

OBJECTIVE
Promote outdoor spaces with better air quality for the neighbourhood.

Answer 5

1 credit point is awarded where a buffer distance between any Open Space within the Site and the nearest road or highway is maintained in the manner as outlined in Table 3.1 of HKPSG, Chapter 9
_____________________

1 credit point is awarded where a buffer distance between any Open Space within the Site and an industrial use in the vicinity is maintained in the manner as outlined in Table 3.1 of HKPSG, Chapter 9.

Should a pollution source, a road, a highway, or industrial use be planned within the Site, the same buffer distance should be maintained with the neighbouring Open Spaces.

Question 6

OEQ 6 - MITIGATION OF NOISE

Credits: 1

EXCLUSIONS
Projects that require approval under Section 16 of the Town Planning Ordinance or any other project that is required to undertake Noise Assessment.

OBJECTIVE
Encourage and recognise developments that are designed to mitigate the impact of noise.

Answer 6

1 credit point is awarded where a Noise Assessment Report is provided to demonstrate a proactive approach to create an appropriate acoustic environment.

Question 7

OEQ 7 - UNIVERSAL ACCESS

Credits: 1

EXCLUSIONS
None

OBJECTIVE
Ensure full access to Open Space and buildings within the site for persons with disability.

Answer 7

1 credit point is awarded where at least three (3) enhanced features are provided under the guidelines, Universal Accessibility in External Areas, Open Spaces & Green Spaces by Architectural Services Department, HKSAR Government.

Question 8

OUTDOOR ENVIRONMENTAL QUALITY (OEQ)

Answer 8

Total number of OEQ credit points: 14

This section includes those environmental quality aspects of performance that have impact on the health, comfort or well-being of general public, as well as aspects of performance that improve quality and functionality.

Outdoor Environmental Quality includes:
• Thermal Environment;
• Daylight and Visual Quality; and
• Acoustic and Air Quality.