Infrastructure Ontario/Metrolinx

Eglinton Crosstown Light Rail Transit

This project is the largest transit expansion in Toronto’s history, and one of the largest P3 projects in North America. When complete, it will move people 60% faster than existing bus service and will accommodate ten times as many passengers.

The new light rail transit line runs along Eglinton Avenue between Mount Dennis Station (Weston Road) in the west and Kennedy Station in the east. The 19-kilometre corridor includes a 10-kilometre underground portion between Keele Street and Laird Drive. The line features 25 stations and stops, with links to bus routes, 3 subway stations and various GO Transit lines. HH Angus is providing mechanical and electrical consulting engineering for three stations – Mt. Pleasant, Leaside (Bayview) and Laird.

HH Angus’ mechanical scope includes ventilation and air conditioning of services spaces, sanitary and storm drainage throughout the station, track level and specialty trackwork drainage, fire protection systems for retail and service areas, water efficient plumbing fixtures and energy efficient HVAC systems.

Electrical scope covers power distribution, lighting and communications systems. Design layouts are provided for power distribution of the subway station, as well as traction power for the trains.

The lighting design features reduced power consumption. Exterior public areas lighting designs incorporate increased daylight levels, LED lighting in pylon signs, and energy efficient lighting in illuminated wayfinding signage to minimize power consumption.

Communications systems design includes fire alarm protection, public address speakers, passenger intercom, TTC pax telephones, public telephones and security systems including closed circuit television.

Mechanical Engineering | Electrical Engineering | Communications and Security Design

PROJECT FEATURES                                       Status: Completion 2022

Toronto, Ontario

Mechanical, electrical, security and communication design was provided for 3 LRT stations | Design included ventilation, sanitary and storm drainage, fire protection, plumbing and energy-efficient HVAC systems, lighting, security and communications systems | Largest transit expansion in Toronto’s history

Bermuda International Airport

Redevelopment and New Terminal

The L.F. Wade International airport is the world’s gateway to Bermuda, and the redevelopment of its existing Passenger Terminal Building (PTB) is a high priority for the small island country. Because the current terminal is prone to flooding, it is susceptible to damage from major Atlantic storms, which could seriously impact Bermuda’s vital tourism industry.

The PTB redevelopment is being undertaken as a P3 project. HH Angus is providing mechanical design, vertical transportation design, and commissioning of all systems serving the airside and the PTB. We are working with a local affiliate to deliver contract administration services during construction.

The vertical transportation scope for the project includes five new machine-room-less (MRL) traction passenger elevators and four escalators.

Some of the interesting challenges of the project include its profile as an international project on an island; adapting to local authorities having jurisdiction; resistance to hurricanes; flood mitigation; and the island’s water strategy–Bermuda requires that all rainwater be captured and re-used, and the new PTB represents the largest roof area in the country. Also, salt-laden air and accelerated corrosion require the use of non-traditional materials as compared, for example, to similar buildings in Canada.

Mechanical Engineering | Vertical Transportation | Commissioning

Size:  2,886,902 ft2 (26,820 m2) | Status: Completion 2020

Bermuda, Hamilton

Five new machine-room-less (MRL) traction passenger elevators and four escalators | Innovative mechanical design | Geothermal heat rejection for cooling plant | Mandated rainwater reuse for largest roof area in the country

Environmental Requirements Create Savings

Among the features of the engineering design, the high water table easily allows for geo-thermal heat rejection for the cooling plant. And the building code on rainwater reuse is a built-in ‘green’ feature.

— Renderings courtesy of Scott Associates Architects Inc.

Halton Healthcare

Oakville Trafalgar Memorial Hospital

As a large super hospital, this greenfield ~ 1.5 million ft2 facility features ORs, Emergency Department, Diagnostic Imaging, Mental Health, Long term Critical Care, and Dialysis services. There is also a large central kitchen and central Sterile Processing department. The hospital has been certified LEED Gold NC, exceeding its target of LEED Silver NC.

The central utility plant provides 4200 tons of cooling, 1500 bhp of hot water and 1500 bhp of steam. There is 15 MW of generator capacity onsite, along with 72 hours of fuel oil storage and a large fuel oil distribution system.

Some of the complexity inherent in this project was due to the design work being split between multiple engineering companies, which significantly increased the amount of coordination required. A key challenge was simply the scale of the new hospital, which increased the complexity of all of the systems. It required integration of systems across multiple engineering companies who were producing different portions of the design.

Another challenge was the extremely tight project schedule. This meant that tasks, which are normally completed sequentially, had to be done concurrently. This required very exacting planning and accelerated design work. Regular meetings with multiple engineering and architecture disciplines allow parties to bring their issues and design requirements to the table and to work through them in a collaborative way.

The vertical transportation design scope included 33 elevators servicing the main hospital building and 3 providing service to the parking garage.

The project co. required commissioning support for the contracting team in order to achieve milestones. HH Angus assembled a separate team of technical personnel to blitz specific systems in a 7-week period. With little preparation time, HH Angus leveraged members of the design team to train the commissioning personnel prior to going to site. 

Mechanical Engineering | Vertical Transportation Consultant | Commissioning Support

Size: 1.5 million ft2 | Completed 2015 | Greenfield super hospital project | LEED Gold

Oakville, Ontario

Central Utility Plant provides 4200 tons of cooling, 1500 bhp of hot water and 1500 bhp of steam | 36 elevators serve the hospital and parking facilities


Alternate approach to Cx

Through a cycle of improvements in methodology, HH Angus was able to improve productivity on site by more than 100% with an alternate approach to commissioning, which was shared with other onsite commissioning groups.

Fraser Health Authority

Lions Gate Hospital

The power plant on the Lion's Gate Hospital (LGH) campus was originally built in 1961 and had to be replaced since it was outdated. The new power plant will contain all new equipment for the steam and hot water generation, along with all the major mechanical, electrical, medical gas, water and other systems for the LGH campus.

HH Angus is replacing the existing power plant at Lions Gate Hospital with a new installation in an underground location. The existing steam-only power plant did not meet seismic requirements and was quite dated. The current project includes boilers, medical gas, plumbing and electrical equipment, as well as the routing of services through an existing tunnel system. This project will support the construction of the future Acute Care Facility to be built at the site.

The design provides a buried plant that is a hybrid of hot water and steam boilers; this design aids in reducing both energy and greenhouse gas emissions. The innovative design recovers heat from the power plant via a heat pump system and reject heat back into the reheat systems. An architectural feature boiler stack was also included in the design.

The original RFP required relocation of the bulk O2 system and, after a number of design iterations, the conclusion was to instead provide an Oxygen Concentrator system.

Implementation of Fraser Health Authority’S BIM standards was required for the project. This is the first time these standards were applied at HH Angus and the work helped to develop a baseline for future FHA projects.

Among the challenges of the project:

– With limited knowledge of the existing site, it was necessary to obtain all background information within a short time frame through access to existing drawings (dating back to 1960s) and performing multiple site reviews.

– To provide the best solution, HH Angus explored multiple options, above and beyond the  requirements of the original RFP and, although the timeline for completion of design and implementation of new BIM standards was aggressive, all deliverables were met on time.

– When key members at the Hospital’s FMO team changed, the design was reintroduced multiple times, along with additional background information. In the end, our design was proven and accepted.

3D Views 

Our 3D matterport scanner proved to be a great advantage for site reviews. The design team in Toronto was able to minutely reference the detailed 3D scan produced by our inhouse team and equipment.


Mechanical Engineering | Electrical Engineering | IMIT Consultant

Status: Completion 2020 | 3D Matterport modeling | Architectural feature stack | Oxygen concentrators | FHA BIM

Vancouver, British Columbia

KEY SCOPE ELEMENTS                                Replace power plant in underground location | Hybrid hot water/steam boilers | Heat recovery system | Architectural feature boiler stack | Enhance seismic resistance | FHA BIM standards applied to help develop future FHA projects

Images courtesy of Dialog

Centre hospitalier de l’Université de Montréal


Designing the mechanical, electrical, and security systems for one of North America’s largest P3 acute-care hospitals required a comprehensive understanding of the crucial demands placed on a hospital’s electrical system; knowledge of the intent and intricacies of codes and standards; value-engineering approaches gleaned from alternate project delivery projects; and lessons learned from complex redevelopment projects.

The Centre hospitalier de l'Université de Montréal (translated as University of Montreal Health Centre, or CHUM) is a mega-hospital complex designed to replace three existing hospitals in Montreal. One of the largest P3 hospitals in North America, it occupies more than 2.5 city blocks with more than 334,000 m2 (3.5+ million ft2) of floor space.

The hospital complex consists of a main 20-storey acute care block, with five levels underground. The upper floors house 775 beds in single rooms, and the lower floors contain diagnostic and treatment functions, including a large emergency department, 39 operating rooms, 7 MRIs and a full cancer centre with 12 bunkers. Distinct blocks house ambulatory care clinics, office space and logistics. Our scope also included two large data centres.

The facility is targeting LEED® Silver certification. HH Angus responded to a number of restrictions and requirements in the RFP with alternative approaches that were subsequently implemented, benefitting the project in terms of better functional use of space, flexibility for the future, cost savings and significantly improved energy efficiency.

Mechanical Engineering | Electrical Engineering | Security Systems Design

Size: 3,800,000 ft2 | Status: Phase 1 - 2017

Montréal, Quebec

Mechanical, electrical and security system designs were provided to facilitate concurrent development | More than 50 Revit® models linked | Project included components that would help future modification of the facility | Targeting LEED Silver

A proven P3 approach

HH Angus developed an approach to deliver consistency and standardization of mechanical and electrical products with multiple contracts and installation contractors. To facilitate the concurrent development of multiple parts of the project, more than 50 Revit models were linked. This allowed work to proceed on construction documents for the core and shell of the building (including services), while design development continued in the clinical areas of the building.

Experience creates long-term efficiency

The RFP mandated a number of restrictions on the ventilation system that would have required two full intermediate mechanical floors and would have severely compromised future flexibility. We worked with CHUM and the proponent team to develop an alternative approach from which numerous benefits resulted, including the ability to modify occupancy and enable future renovations, which allowed an extra clinical floor to be constructed under the zoning height restriction.  

Delivering more value

The RFP required a distinct air handling unit for each functional department, as well as restrictions on unit size and floors served. HH Angus proposed the use of larger, 100 percent outdoor air units serving multiple floors. We proved the merits of this approach to CHUM from an infection control perspective.

Proving a better solution to save energy

The RFP did not allow the use of heat recovery wheels due to perceived infection control concerns. We used 20+ years of successful experience with heat wheels to prove the approach to the client and compliance team. The RFP was modified to allow the use of heat wheels, enabling a much more cost effective and energy efficient solution.

Saving the client money

The RFP mandated a standby air handling unit for each critical care space, which would have required much higher capital and operating costs over the life of the building. We recommended manifolding a number of air handling units together to share the redundant capacity. This approach considerably increased overall reliability of the systems while reducing operating costs.  

Robust, reliable, cost-effective electrics

Similar components in the electrical infrastructure were procured in separate equipment tender packages to obtain best pricing directly from the corresponding vendors. The installation scope was divided into sectors within the building and awarded to separate electrical contractors. This “carving up” of the design scope into multiple tender packages required a high degree of coordination with the DBJV, and was effective in keeping this massive ongoing project on track with budget and schedule.

Multifunctional security system design

Our Angus Connect Division designed a fully convergent IP-based (Internet Protocol) security system and the supporting IT infrastructure required for a large-scale Cisco high availability, medical grade network. We designed an IP-based integrated multimedia security system that includes several thousand IP-based cameras, intelligent card readers, and other security devices located throughout the hospital complex. This system includes PoE (Power over Ethernet)-controlled architectural door hardware connected to Cisco’s high availability medical grade network.

Discrete segments of the security system are reserved for clinical observation, parking control, visitor management, patient wandering and duress applications. Multiple control facilities were provided across the hospital, using multicasting over VLAN, configured on Cisco LAN.

The security system was designed to support sophisticated client “use and workflow cases”, providing interoperability, SOA (Service Oriented Architecture) and SOI (Service Oriented Infrastructure).

Angus Connect integrated all aspects of the security systems into a seamless and efficient operation, leveraging the most current technology wherever possible to improve efficiency, reliability and safety, thus simplifying information flow and access to users.