Scott Street Interlocking Signal Tower Generator

Scott Street Interlocking Signal Tower Generator 

RDHA

Scott Street Interlocking Signal Tower Generator
© Tom Arban

ARCHITECTS
Rdha

DESIGN PRINCIPAL
Tyler Sharp

MANAGING PRINCIPAL
Bob Goyeche

MANUFACTURERS
Avl Manufacturing Inc., Black & Mcdonald, Castle Precast Ltd.

STRUCTURAL ENGINEERING
Entuitive Corporation

MECHANICAL & ELECTRICAL ENGINEERING
Smith + Andersen

PROJECT MANAGER
Patrick Liu

PROGRAM / USE / BUILDING FUNCTION
Emergency Power Generator

PROJECT TEAM
Rob Boyko, Marco Travaligni, Ian Huff, Elizabeth Antczak, John Bettio

HERITAGE CONSULTANT
Era Architects

PHOTOGRAPHS
Tom Arban

AREA
3564 M²

YEAR
2023

LOCATION
Toronto, Canada

CATEGORY
Energy Plant

Scott Street Interlocking Signal Tower Generator
© Tom Arban

Metrolinx, an Ontario Government organization that oversees the improvement of transportation in the Greater Toronto and Hamilton Areas, commissioned RDHA to design a new emergency generator tower to replace a decommissioned one that serviced Toronto’s Union Station.

The project is situated on Toronto’s westbound Gardiner Expressway off-ramp to Yonge Street, immediately adjacent to the historic Scott Street Interlocking Signal Tower.

Scott Street Interlocking Signal Tower Generator
© Tom Arban
Scott Street Interlocking Signal Tower Generator
© Tom Arban

Designed in 1930 for the Canadian Pacific Railway (CPR) by John Wilson Orrock, the Chief Engineer of Buildings, Scott Street is one of three signal towers built in Toronto for the CPR during the same era (the others at Cherry Street, and John Street).

With its Italianate round-topped windows, square tower, and hipped roof, the building is considered a significant piece of heritage infrastructure, and it became the prime inspiration for the new addition.

Scott Street Interlocking Signal Tower Generator
© Tom Arban

The generator tower, comprised of a generator, a structural system, and a naturally ventilating skin, attempts to respect its historic neighbor, and deliver a similar level of design attention, although through a contemporary architectural language.

Our overall goal was to renew appreciation for not only the Scott Street Tower, but also to draw renewed interest towards what are often overlooked, but highly essential, pieces of engineering and infrastructure within the urban context.

Scott Street Interlocking Signal Tower Generator
© Tom Arban
Scott Street Interlocking Signal Tower Generator
© Tom Arban

Our conceptual approach began with a careful analysis of the heritage architecture to guide and inform the enclosure’s perception, scale, footprint, and elevational composition.

The resulting scheme is a shimmering, and reflective formal interpretation of the existing tower, with three corresponding datum lines of lightly polished aluminum, subtly opening and closing to allow ventilation and partial views into the shrouded piece of infrastructural architecture.

The project team strove to establish a highly sustainable design, with architecture, engineering, and materials designed for longevity over time.

Scott Street Interlocking Signal Tower Generator
© Tom Arban
Scott Street Interlocking Signal Tower Generator
© Tom Arban
Scott Street Interlocking Signal Tower Generator
© Tom Arban

The building is essentially passive, as the only ventilation and cooling is through the facade panels that can be either opened or closed in direct response to the requirements of the generator.

The building is lit with energy-efficient LEDs throughout, with daylight and occupant sensors to reduce the amount of energy used throughout the day.

The revealed space between the old and new structures is designed to allow the incorporation of a green-planted urban wall.

Scott Street Interlocking Signal Tower Generator
© Tom Arban
Scott Street Interlocking Signal Tower Generator
© Tom Arban

In keeping with this overall approach, the new generator structure has been conceived as a contemporary urban object with architectural integrity that honors a heritage asset. It is also as functional as it is an intriguing, beautiful, and breathing sculpture within the industrial landscape.


Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
East elevation
Scott Street Interlocking Signal Tower Generator
South elevation
Scott Street Interlocking Signal Tower Generator
West elevation


Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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Scott Street Interlocking Signal Tower Generator
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