Dallas 54” Wastewater dallas Water utilities — city of dallas
The city of Dallas operates a large wastewater collection
system, including a 36-inch wastewater collection line installed
in 1927 in a nature preserve. A study of the current wastewater flowing through the line showed that a 54-inch line
was required. Dallas Water Utilities chose a route for the
new line that least disturbed the nature preserve, allowed
the 36-inch line to continue operation, and provided the
best expansion opportunity.
The study included the use of MicroStation and Bentley
Descartes to display 2005 aerial maps of the entire wastewater drainage basin, count houses and businesses, and place
realistic values of the amount of wastewater generated. Later,
a survey was completed using MicroStation, and this generated
the base drawings for the new design. InRoads was used to
cut profiles of all possible routes and determine the cost-effectiveness and feasibility of each route.
LAR-IAC (Los Angeles Region Imagery Acquisition Consortium) infotech enterprises Ltd
The objective of this California-based project was production
of uniformly color-balanced, seamless digital orthomosaic
tiles at 0.33 U. S. survey feet pixel resolution and 2-foot contour
generation covering about 3, 100 square miles. This was part
of the digital aerial imagery data and related photogrammetric
services for the whole of Los Angeles County area. The digital
aerial images needed to be acquired in RGB as well as CIR
bands using the latest digital-mapping camera to provide
accurate and high-quality output orthoimagery for the entire
project area.
Infotech deployed a team of about 130 photogrammetry
engineers for aerial triangulation, LiDAR editing, digitization of
break lines, contour generation, and orthogeneration. The
firm chose MicroStation, MicroStation GeoGraphics, and
Bentley Descartes because of their customizing capabilities,
user-friendly nature, and powerful production/editing tools.
