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Reaching the century mark isn’t easy – you have to be quality-driven, client-focused, and
have a vision for the future. At 100 years, STV is looking ahead. As an employee-owned fi rm,
our planners, architects, engineers and construction managers have a stake in the business,
and are committed to quality performance. We provide personal attention and timely
solutions, with an eye toward sustainability. And with more than 40 offi ces, we are a local
fi rm with national resources.
When it comes to getting your project delivered right, choose the fi rm that has the drive
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For more information, visit www.MassTransitmag.com/10347269
“Th is new energy-saving propulsion
technology is the result of
a Bombardier-led joint research
program that investigated the
potential contribution SiC could
make toward more sustainable
urban transit systems with
lower energy consumption and
noise levels,” said Patrick Jacob,
product marketing manager,
MOVIA Metro Products.
As cities lean toward furthering
sustainable infrastructure, heavy
rail lines become more attractive.
Jacob explained, “Th e research
program, supported by the Swedish
Energy Agency, saw Bombardier
team up with local partners.”
• Th e Stockholm Public Transport
Authority (customer and
fl eet owner)
• MTR Tech (fl eet operator)
• KTH Royal Institute of Technology
(academic partner)
• RISE/Acreo (research institute)
“Following a pre-study phase
to establish the potential benefi ts,
a prototype was designed, built
and tested at Bombardier’s engineering
center in Vasteras, Sweden,”
said Jacob. “Th e BOMBARDIER
MITRAC TC1500 traction
converter equipped with SiC semiconductors
was then tested on a C20
metro train running on the Stockholm
Metro.”
Th e passenger service on the
Stockholm Metro Green Line ran
from December 2017 to March 2018.
Jacob explained that the results from
the service showed how SiC technology
can benefi t customers.
• Energy reductions up to 35 percent
• 19 dB lower noise emissions
• A 51 percent reduction in size in
the propulsion system
• 22 percent less weight in the propulsion
system
Safety mandates
With the upcoming Federal Railroad
Administration’s mandate on
positive train control approaching,
safety is a factor that also comes
into play with heavy rail.
“By far, the most important
development we are seeing is the
mandated implementation of PTC
— and how to give our customers
full PTC capability quickly, safely
and without too much change to
their existing system,” explained
John Paljug, president of Siemens
Rail Automation Business for
North America. “Right now, we’re
having some tremendous success
with our product ACSES (Advanced
Civil Speed Enforcement
System) which, when overlaid
with our conventional cab signal
systems, provides the four core
sought-aft er PTC functions: civil
speed enforcement, positive train
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/10347269
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