ok- 
py 
of 
an 
of 
ove 
ard 
r- 
A-2 
Q 
an 
work normally done by traditional means becomes automated, based on 
analytical methods and techniques. A systematic project approach saves 
both time and money, making the work team more efficient.and producing 
a high quality end product with maximal information content and known 
error parameters. This is difficult to achieve in traditional photo- 
grammetric firms where maps and/or digital data are produced from 
imagery with no further involvement in a project or the end use of the 
photogrammetric products. 
In late December of 1985, Andrews Atherton began work on the design of 
10,133 linear feet of a 12-inch water line for the City of Phoenix; the 
project was set up for photogrammetry from its inception in an attempt 
to streamline the design process and reduce the potential for error. 
The project design, which could be done with the FLIGHT PLANNER, called 
for 11 models acquired in crossflights to maximize alignment coverage 
and minimize wasted transverse coverage; a flying height of 1080 feet 
above mean terrain produced a photo scale of 180 with final maps drawn 
at 20 scale. 
The HP COGO program was used to generate a coordinate base for match- 
lines and centerline alignment which resulted in two plan/profile sheets 
per model, and provided window coordinates for each sheet. 
Ground survey crews were utilized only to establish infield monumentation 
for the coordinate base, set photogrammetric control panels, and paint 
all visible utility features (valves, manholes, catch basins, hydrants, 
etc.) with a template indicating the type of utility. No other field- 
work has been necessary during the course of the project. 
Once photography was completed, all non-visible information such as ROW, 
monument and boundary lines, easements, etc. was calculated on the HP86B 
from the surveyed field monumentation and existing legal documents; this 
information was plotted on the base sheets in the same coordinate frame- 
work with the HP7580B plotter. 
The completed base sheets were then re-indexed in the HP7580B plotter for 
photogrammetric collection of all planimetric and topographic data in 
plan view; this data was the direct input for engineering design of 
waterline alignment and profile. 
The engineering department added waterline alignment and construction 
notes in plan view, assigning coordinates to the alignment for input into 
the DOTXS cross-sectioning program; in addition, non-visible engineering 
data on underground utilities was added from as-built drawings as per- 
mitted by City of Phoenix Technical Paper No. 13. 
In future projects, even this aspect could be automated with the Kern 
K0GO software package used for plan view drawing and the addition of 
construction note text through MAPS 300. The KOGO software stores 
tabulated data for use in other data analysis/manipulation functions 
or for report generation to accompany finished drawings. 
Following completion of alignment design, the derived waterline coord- 
inates were used as DOTXS input to generate cross-sections at 100 foot 
intervals along the proposed waterline for centerline elevation of 
55