HULLY LIVERIS DESIGN COMPANY PTY LTD.

Transcription

1 HULLY LIVERIS DESIGN COMPANY PTY LTD. 1

2 SAFETY IN DESIGN (compliance with WHS Act 2012) SAFETY REPORT PROFORMA CHECKLIST HULLY LIVERIS DESIGN COMPANY PTY LTD Project name: GEORGE BROWN DARWIN BOTANIC GARDENS VISITOR + EVENT CENTRE SD283/18 Client name: NTG Department of Planning Infrastructure and Lands Address: Lot 6524 TOWN OF DARWIN, NT. Building use: Visitor and Events Centre. Project description Visitor and Events Centre on 1 level including public, services + back of house spaces, staff spaces plus 1 st floor plant room. Date completed: Form completed by: Hazard likelihood Hazard severity Risk rating A Almost certain B Likely C Possible D Unlikely E - Rare 1 Insignificant 2 Minor 3 Moderate 4 Major 5 - Catastrophic VH Very high risk H High risk M Medium risk L Low risk Design phase: Confirmation of known hazards and risks provided by client: 1 Siting and earthworks Darwin Botanic Gardens Master Plan. C 3 M The siting of the Darwin Botanic Gardens Visitor + Centre [VEC] has been considered taking into account of the network of existing and proposed master plan walkways + associated pedestrian circulation + other master plan design elements. As noted herein + with minor earthworks a level site is easily created allowing for the placement of the project elements. The resultant siting allows for ample + open surrounding space for surveillance, various level access modes to the project in safety. Access and egress for staff + visitors has flowed from the existing pedestrian networks for a Gardens site plan of greater legibility + safer access. The siting of new buildings has strengthened the centering role of the visitor experience to the Gardens and the master plan has a strategy of providing linkages from the VEC to all parts of the precincts attractions. During the construction phase the proposed siting of the new VEC facility allows for access from a possible 2 directions and the creation of a yard space to the western side of the existing roadway, that will need to be quarantined from staff + visitor movements. This will also apply for the construction of the new upgraded site infrastructure services whereby the contractor will need to manage the closing off of these spaces to avoid any possible risk to staff + visitors etc. 2 Movement of people and materials Darwin Botanic Gardens Master Plan. A 4 H The master planning for Darwin Botanic Gardens and the new Visitor + Events Centre includes pedestrian access systems to all building edges utilising the existing uncovered shared roadway and walkway systems. The movement of materials etc has been considered utilising the existing roadway which is direct and easy to access and egress etc. Also accessed off this roadway is a loading bay facility and services drop off point for all manner of vehicular and other service delivery etc. Existing car parks provide additional close access for visitors from both the lower + upper Gardens precincts. As noted the delivery of material etc will need to be managed by the Gardens team outside of opening hours to ensure any potential GEORGE BROWN DARWIN BOTANIC GARDENS VISITOR + EVENT CENTRE SD283/18 1

3 clashes between visitors + delivery vehicles are avoided. On all other occasions such situations will need to be implemented under the auspices of a shared roadway safety plan to be developed for the Darwin Botanic Gardens. As noted herein the fire hydrant will be easily accessed off the roadway for maintenance and emergency responses. During the construction phase as noted the delivery of all materials + personnel arrivals etc will need to be managed by the contractor also to avoid any risk of injury to Gardens staff + visitors. Delivery of materials. A 4 H The Visitor and Events Centre as well as general Gardens deliveries will arrive at the loading bay from the existing shared roadway as noted, from either the Gardens Hill Road as well as the Salonika Street approaches. From the loading bay wheeled trolleys can be moved easily up the access ramps along the verandahs outside opening hours and arrive to the required parts of the complex. Refuse movement + removal will take the same pathway but in reverse and will need to be carried out of opening hours + managed by the Gardens team. During the construction phase the contractor will need to manage all site deliveries and arrivals to avoid any possible conflicts with Gardens staff + visitors. 3 Working environment Space for occupants. D 2 L The facilities have been designed to specific brief requirements for all areas and are fully compliant with access requirements of AS the DDA. The ground floor is one level with no steps together with compliant external access points to the raised platform of the VEC. The first floor plant room also is on one level with compliant stair access within a screened enclosure. As noted the general circulation, back of house + visitor spaces allow for cross surveillance across the spaces, and onto the external zones. A feature of the public spaces are the glazed operable doors + wall panels, which allow accountability in the use of enclosed spaces to minimise anti social behaviour. In this sense perforated panels to the wc pavilion have been considered to minimise the possibility of anti social etc as noted. The centralised staff//info space is well placed together with a high capacity of surveillance to most areas. This centralised location and elevated staff location also allows for supervision + minimise occurrences for risky behaviour and other matters [e.g. unplanned delivery of goods, visitors arrival etc]. During the construction phase the site enables a large separable site yard that allows all necessary construction activities to occur without too much impact upon the Gardens precinct. Refer to noise and other matters raised herein for parallel issues that will need micro management by the contractor to avoid possible precinct clashes, loss of amenity or visitor experience etc. Thermal comfort + exhaust. C 3 L Refer mechanical documentation for the scope of air conditioned spaces; a large portion of the internal spaces also have operable louvres or permanently ventilated walls for after hours or air con down time use, or 100% passive cooling modes. Ceiling fans to most spaces further add to thermal comfort together with, or separate to, air con use for added energy efficiency. Mechanical advice is that the plant room does not require mechanical ventilation due to a large percentage of the external walls being permeable. Lighting. C 3 L Refer electrical documentation; led lighting is to provided GEORGE BROWN DARWIN BOTANIC GARDENS VISITOR + EVENT CENTRE SD283/18 2

4 throughout for high efficiency, long lamp life + low heat generation. Thermally efficient perimeter glazing bands with large roof shading overhangs provide good natural lighting levels throughout. Floor slip ratings. C 4 H All floor finishes have been designed to code and cleaning operations will be coordinated by the Gardens team as out of hour s operations. The access ramps will have non slip inserts for aggressive non slip access. Stairs + handrails + balustrades. B 3 M As noted herein the stair, handrail + balustrade systems have been considered to avoid falls, toe holds and are bca compliant. The VEC is les than 900mm above natural ground level, which simplifies stair and balustrade systems. Transparency + surveillance. C 3 M The VEC facility embodies a philosophical approach of transparency, adaptability etc + naturally lends itself to surveillance of all spaces of the new facility. Externally this approach is also continued to allow easy surveillance around the building faces. Visitor + Events Centre. A 4 H The potential activities within these spaces involve risks that will need to be managed by the Gardens Team as part of its delivery of improved visitor experiences and services Darwin Botanic Gardens. In design terms each space has been considered to minimise risk to staff + visitors. The public spaces are simply planned with open, legible and single level spaces. All non public spaces are discrete and separable such at the pant room, store and food preparation areas. 4 Falls prevention External Verandahs. C 4 H The VEC is raised to clear all site ground levels for a single level, dry and under cover. These spaces are less than 900mm above the existing natural ground level and are omni accessible with compliant handrails, treads and risers, ramps etc. In other areas the verandahs lead directly onto external landscape spaces with no steps etc. it should be noted that the existing shared roadway is proposed to be topped to further eliminate any steps, trip or fall hazards on approach to the facility etc. The plant room is also fully screened to prevent any falls. Plant Room Stairs. C 4 M The internal stairs to the first floor pant room is completely encapsulated by a screened enclosure to prevent fall risks; this approach also extends to the plant room to eliminate the fall possibility, or falling objects etc. Access to roof. C 4 H Roof access to the VEC is not required under the bca as no services etc are located to this zone that will require access. Nevertheless if required into the future [pv arrays etc] external access could be achievable with a bca compliant enclosed ladder. Harness points can also be provided within this present scope that will provide safe roof access for maintenance//other possible reasons in the short term. High ceilings + access to high ceiling spaces. A 3 M The VEC has mostly easily accessible ceilings, which can be approached from the verandah floors. To the east side of the central space a high level ceiling that can be accessed from a mobile EWP etc as noted elsewhere to provide the safe access required to maintain various services etc. This will also allow easy access//removal of plant room equipment//components from the service hatch above. The VEC internal spaces also have some areas of higher ceiling linings and therefore will also require a mobile scissor lift or EWP etc for maintenance etc reasons. Generally mobile scissor lifts or cherry picker or mobile scaffold GEORGE BROWN DARWIN BOTANIC GARDENS VISITOR + EVENT CENTRE SD283/18 3

5 Access to external walls + windows. could be brought into the VEC from the loading bay in safety for these tasks. Externally the upper level soffits would be accessible via ground level operated ewp s. A 3 M The buildings have been designed with minimal maintenance in mind, utilising hot dipped galvanized structural exposed elements, prefinished materials, and heavily protected finishes with large roof overhangs + screens. The VEC has level, approach spaces and access around each side that will allow a variety of options to access the facades for future maintenance, remove + replace equipment in safety etc. External led lighting has been located at low level to allow easy access into the future. High level external lighting//other fittings have been avoided for safety reasons as noted herein. 5 Plant Access to mechanical plant. C 2 M The majority of plant has been designed for easy maintenance access at the same level, at first floor within the building and therefore out of weather. There is no roof top plant and any associated risks. External condensers are very limited in number and are located in the plant room for easy access and are securely screened against intrusion etc. The fist floor plant room has a removable section of external envelope allowing easy removal of plant into the future from the level verandah utilising an elevated work platform [ewp], or crane etc. As noted access to the plant room has been provided via a bca compliant secure stair that also serves as its egress point. If needed roof top access could be arranged from the ground floor courts surrounding the building via cranes etc. All other remaining plant is located in the ground level screened and secure service yard, easily accessed off the shared roadway. 6 Substances VEC + Food Preparation. D 3 L The possible activities within the VEC and Food Preparation spaces are unlikely to utilise substances to be of potential harm to staff or visitors. The Garden team will need to manage which possible activities or events to be staged etc that will need to be allowed to occur, measuring assessment of risk etc. The mechanical engineers have assessed these risks in term of ventilation etc. The hydraulic consultants have advised that a grease arrestor is required due to the preparation of food etc. 7 Noise Acoustic report. A 4 VH It is requirement that a comprehensive acoustic report be undertaken on this project by the main contractor, which makes recommendations for suppression of potential mechanical plant room + other noise to the adjoining public external spaces as noted herein. Acoustics within the public areas. A 4 VH The use of external public spaces for circulation, congregation, working etc will generate some noise that is mitigated by the open nature of these spaces and the limited ability to contain and reflect noise to an unacceptable level. The internal public spaces will need to be considered in the required acoustic report as noted and the inclusion of acoustic ply ceilings etc is recognition for the need to control noise etc levels to acceptable internal environments etc. Wets areas. A 2 H The potential noises associated with wet areas have been addressed by separating these activities away form the critical interior spaces + utilising landscaped courts. GEORGE BROWN DARWIN BOTANIC GARDENS VISITOR + EVENT CENTRE SD283/18 4

6 Likely SeverityRating COMMENTS / ACTION / STRATEGY Plant noise exposure. A 4 VH As noted noise from the plant room has been avoided to adjoining ground floor spaces + located to the first floor on a thickened concrete floor slab over. The mechanical engineers have considered the issues of noise and require all equipment to the plant room to be fully attenuated to avoid any issues with adjoining external or ground level spaces below. As noted these matters are required to be dealt with in the acoustic report to eliminate any noise imposition etc to all public spaces. 8 Manual tasks and material handling Delivery of materials. A 4 VH The VEC facility will require the regular delivery of materials for its regular operation and for the specialised events that will occur therein. The existing access has been retained which has been relatively problem free over many years [advised by Gardens team]. The loading bay has been positioned to allow vehicles of various sizes to delivery goods + materials in safety. The Gardens team will need to manage the delivery times to avoid possible clashes with visitor movements. Refer to item 2 of this report for additional info. Refuse. A 4 VH Within the screened and secure service yard refuse bins will be located together with safe, level access to and from the loading bay space. As noted the gardens team will need to manage the collection of refuse to avoid VEC open times etc. 9 Fire and emergencies Fire risks. A 4 VH All fire risks have been assessed under the bca by the certification + hydraulic team; please refer to the fire services documentation addressing such matters. Evacuation routes and exits. A 4 VH The design of the VEC facility has addressed the requirements for access as well as egress and evacuation routes. The VEC complies with BCA egress requirements and has easy access to open space on all sides for evacuation purposes. All required authority signage will need to be incorporated accordingly. Fire Hydrant. A 4 VH The fire services engineers have liaised with Power Water and NTFRS for the optimum design + location of a new fire hydrant for the VEC including the Gardens precinct upgrading of infrastructure services. Emergency vehicles. A 4 VH The hydraulic + civil engineers have assessed the site entry and exit in forward gear to the VEC facility by emergency vehicles. As noted the fire hydrant has been located to suit the approach needs of NTFRS vehicles. 10 Electrical safety Refer Electrical Services. 11 Temporary works Management of Gardens Precinct safety. A 4 VH It will remain the responsibly of the contractor to manage the erection of any temporary works, including barricades etc to ensure the complete safety of the Gardens staff and visitors. These duties will also include total traffic and other relevant management to further guarantee the safety of all as noted. 12 Demolition and dismantling Demolition works. A 4 VH Refer to the contract documents which addresses which elements are to be removed, demolished etc. it will remain the contractors responsibility to manage the removal and disposal GEORGE BROWN DARWIN BOTANIC GARDENS VISITOR + EVENT CENTRE SD283/18 5

7 of such elements + associated processes within the Gardens environment. 13 Other Note: Building contractor to provide independent review of Safety in Design for the construction phase Distribution 1) Client 2) Consultants 3) Contractor Workshop attendees: GEORGE BROWN DARWIN BOTANIC GARDENS VISITOR + EVENT CENTRE SD283/18 6