Year In Infrastructure 2005

GEOSPATIAL

PUBLIC WORKS

The Look of Austin Town
Lake Planning Zone
City of Austin Public Works
Department

determine erosion and accessibility areas. We can also drape the aerial photography and create movies and animations.

From time to time, this data is updated or
modified, so city executives can visualize the
changes taking place within the City of Austin.
The Bentley solutions can display both raster
and vector data in a common view, which helps
executives and project managers better under-
stand the impact of new projects on the city. ;

The goal of this project was to create a comprehensive program of aerial photography for the City of Austin.

One of the sub-projects was to combine some of the more visible geographic features with the aerial photography, starting with an area of the Colorado River that has been dammed to control flooding downstream. Twenty-one LIDAR (light detection and ranging) point files were combined and a tin model was created in Bentley’s GEOPAK. GEOPAK handled millions of points of triangulation data. Being able to handle this many vertices on the screen is amazing!

We can now visualize any information we need, from thematic maps to slope maps, to

PUBLIC WORKS

Water Supply Master Plan
Concept S.A.

S.A., an engineering company from Tunisia, partnered with SETICO, a Sénégalese firm, and used Bentley’s WaterCAD to analyze the problem and identify cost-effective solutions.

valves. The model

In creating a model
of the network,
CONCEPT used
WaterCAD to con-
vert DXF drawing
elements into
WaterCAD entities
such as pipes and
was continuously updated with new sets of
survey information as they were completed
by SETICO.

System demands were calculated based on Sénégalese regulations and were imported into WaterCAD. An initial simulation was developed to determine pressures throughout the distribution system, and a second to make sure the city could distribute enough water during the two-week pilgrimage.

CONCEPT used the model to determine which areas were prone to low or excessive pressures to locate leaks and pipe breaks.

To help the hydraulic department prioritize recommended improvements to the system, WaterCAD’s energy-cost analysis feature was used to determine which improvement project would yield the greatest return on investment. ;