For the $500 million ACE San Gabriel Trench project in San Gabriel, Calif., HDR
provided a concrete U-structure with double track to ensure uninterrupted
and safe rail operations. The primary challenges were the density of existing
urban infrastructure, limitations of the right of way, freight rail track geometry
constraints, the multidiscipline nature of the project, construction sequencing,
and the maintenance of uninterrupted rail operations.
HDR used InRoads, InRail (now Bentley Rail Track), MicroStation, and
Project Wise to integrate a skilled design team distributed over multiple
locations, facilitate rapid deployment of the project team, and accelerate
information sharing and communications across project teams. Interactive file
exchange and compatibility of various file formats provided compatibility with
third-party source files such as DWG.
IRCON International Limited
Udhampur Srinagar Baramulla Rail Link Project
IRCON International was tasked with the design and construction of a railway
line that will connect the Indian states of Jammu and Kashmir with the rest of
the country. The route not only crosses earthquake zones, but also is subject
to extreme temperatures and inhospitable terrain. Total capital investment is
projected to be $500 million.
MicroStation and Bentley Rail Track helped IRCON prevail despite a lack of
ground data. The technology was used to design alignments, bridges, tunnels,
and station buildings. The digital elevation model had an accuracy of 2 meters.
Short deadlines were met with the aid of the 3D visualization tools, which
shortened design time from six months to three months.