rary stair systems to maintain access
for passengers, so that our crews and
trade partners were able to make
progress on the scopes of work and
allow an early start date for the West
Station House construction.”
Loop Truss
According to Krotkiy, Graham imple-
mented an accelerated schedule plan
that involved assembly of loop trusses
on the ground subsequently placed in
four successful major steel lifts during
non-revenue hours (2:00-5:00AM) to
reduce working time above the guide-
way and minimize risks of service
disruption. Each truss weighed
130,000 pounds and measured 250
feet long.
To mitigate the impact of design
changes on the project schedule,
Graham implemented an accelerated
schedule plan that involved assembly
of loop trusses on the ground which
significantly reduced working time
above the guideway and minimized
risks of service disruption.
JANUARY 2019 | BUSINESS ELITE CANADA 173
