The One

SECTOR: Geohazard

Toronto, Canada


Automated urban excavation monitoring

Upon completion, The One tower in Toronto will be Canada’s tallest skyscraper. It will be the first high-rise in Toronto to be built with a hybrid exoskeleton support system, and the highest-capacity crane ever used in the city was brought in to install its foundation. Mizrahi Developers has called on cutting-edge technology to meet the special challenges posed by this project, and the geotechnical monitoring was no exception.

With the surrounding Yorkville neighbourhood boasting the highest commercial rents in Canada and a designated heritage building abutting the site’s east side, the developer did not always have the luxury of positioning equipment in the most convenient way, nor could they afford to wait until ground stability problems became apparent to intervene. Assuring the stability of the temporary shoring system was essential to keeping the excavation work safe. They needed to adopt a proactive risk management strategy to protect the construction site and avoid damaging adjacent structures, all while conforming to the location’s small footprint and dense urban environment.

To meet these requirements, Monir Precision Monitoring used SAAV model ShapeArray™ to measure ground movement within sheet pile walls. ShapeArray was paired with a sensemetrics’ Thread to provide near real-time data to the construction team. sensemetrics’ software offers plug-and-play compatibility with ShapeArray and a secure cloud platform that members of the project design and construction teams could access from mobile devices or desktops computers for up-to-date analytics, alerting, and automated report distribution. According to sensemetrics’, using this integrated automated data collection system, rather than a more conventional system of inclinometers read manually by field crews once a week, delivered a 60% reduction in cost and produced data 87% more likely to detect a critical displacement within 24 hours.

Read more about this project in One Big Responsibility at Pilling Canada


[1] Landau, J. “The One’s hybrid exoskeleton to be a first for Toronto,” Urban Toronto. [February 12, 2018]

[2] Landau, J. “Specialized crane installed for ‘The One’ at Bloor and Yonge,” Urban Toronto. [November 14, 2018]

  • 1993

    The Beginning

    Measurand is established in Fredericton, New Brunswick
  • 1994

    Bend sensor development

    Measurand develops and patents fiber optic bend and position sensors for the medical and automotive sectors

    U.S. Patent 5,321,257

  • 1995

    Canadian Space Agency

    Receives funding from the CSA to develop sensor technology that ultimately leads to invention of ShapeTape

    U.S. Patent 5,633,494

  • 1999

    Patent on fiber optic sensor

    Measurand receives patent for "Fiber Optic Bending and Positioning Sensor" issued June 29, 1999

    Canadian Patent 2,073,162

  • 2001

    ShapeTape & ShapeHand debut

    Measurand designs and develops innovative motion capture technology

    U.S. Patent 6,127,672, 6,563,107

  • 2002

    Measurand Attends the ICPMG

    First contact with the geotechnical sector at the International Conference on Physical Modelling in Geotechnics (ICPMG)
  • 2004


    Design patent application sent about a new product designed to meet the specific needs of the geotechnical industry

    U.S. Patent 6,127,672, 6,563,107

  • 2005-08


    Measurand debuts ShapeWrap motion capture technology for the film and animation industry

    U.S. Patent 7,296,363

  • 2006

    Malibu installation

    ShapeAccelArray installed for ground monitoring for the first time​ in Malibu, CA

    Canadian Patent 2,472,421

  • 2007


    Suite of instrumentation developed for motion capture within Magnetic Resonance Imaging (MRI) machines

    U.S. Patent 7,296,363

  • 2011

    SAAScan launched

    Built for rapid deployment and repeated use

    Canadian Patent 2,472,421

  • 2014

    SAAX launched

    Purpose-built for heavy-duty horizontal installation

    Canadian application 2,815,199 & 2,815,195

  • 2017

    SAAV launched

    The only geotechnical instrument with a patented cyclical installation method

    Cyclical Sensor Array, Canadian application 2,815,199 & 2,911,175