David Lankford
THE TELCO WORK ORDER PROCESS: GIS
ABSTRACT
Although many facets of AM/FM have been successfully
implemented, work print generation seems
to be trailing behind. Work print generation in a
telecom GIS will be discussed, analyzed and
demonstrated. In addition to generating work prints, a
tracking mechanism must also be
established and integrated into the GIS to complete the
work print to as-built cycle, ensuring total control of
the work print process.
The ultimate goal of a telco should be to build an
enterprise-wide GIS solution or series of databases that
can be accessed by every employee in the company if
necessary. This GIS is a system that relates facilities
data: distribution and feeder cables, aerial and buried
facilities, etc. with the surrounding geography: roads,
schools, rights-of-way, etc. This seamless, spatial
database is capable of generating facilities maps and
providing connectivity for engineering functions such as
cable throw and loop make-up, while at the same time
enabling other departments to complete demographic
studies or create three dimensional cellular propagation
drawings. One company, one set of geographic data.
Many large telephone companies have implemented AM/FM
and GIS projects in the past ten years but few have been
totally successful. Even those who claimed some success
still drafted work prints manually and then entered them
manually into the computer system as a part of the
as-built process. The one thing these companies had in
common was the way in which the system was initially
designed -- from the top down.
The inclusion of the OSP engineers in a GIS project is
very important, and their acceptance and use of the
system is critical to its success. The engineers, along
with a number of other key people, should be involved in
the design and implementation processes from the
beginning.
Incorporating a work print generation system into the
GIS from the beginning could have made the difference
between success and failure. Work prints are the first
step to building and maintaining CPR databases.
Construction crews cannot place facilities in the field
without a work print. Permits and rights-of-way cannot
be acquired without a work print. Facility maps cannot
be updated with out a work print which shows any changes
or additions that may have occurred.
If the OSP engineer has the tools to do his job
properly, more than 70% of the data required for a
five-year conversion project could be taken directly
from the engineer's daily routine. This would also
apply to the ongoing maintenance of the databases; they
would be automatically updated as the engineer completed
each project.
Telco engineers know that they have to spend hours,
sometimes days, redrawing all of the landbase and
existing facilities in a specific geographic area before
they can even begin drawing new placements and
rearrangements for a work print. This seems to be a
fact of life in all telephone companies -- from
Cooperatives and Independents to the Regional Bell
Operating Companies (RBOCS).
Since drafting tasks seem to consume the majority of an
engineer's time, it can be concluded that by minimizing
this function, a lot of time will be saved. And, by
implementing a GIS, many of the common "complaints" made
of the engineer would disappear -- illegible printing,
spelling, the scales used, the pencil lead, and
sometimes even the engineer's overall ability to do the
job.
A GIS system can be an excellent aid to an engineer when
doing field work. A hard copy of an area can be
generated for field notes by querying the GIS for
landbase and/or facilities in that area. By doing this,
an engineer can reduce time required in the field and
improve the quality and accuracy of his notes at the
same time.
Once the GIS is implemented, work print generation is a
natural way to continue to build and maintain the GIS.
WORK PRINT GENERATION STEPS
- Query the landbase and existing facilities
Using the existing GIS databases, the landbase and
existing facilities in the area of the project are
queried. Countless hours of re-drafting will be saved
by using the database to generate the landbase and
facilities for a particular project. In doing so, there
are no map boundaries, multiple maps with different
scales, maps stored in different files; all data reside
in a seamless
database.
- Draw a line (polygon) around the geographic area of
the project and assign a work order number to that line
This closed polygon "fences" all landbases and
facilities included in the project. Regardless of the
total number of work print sheets in the project, this
"fence" will define the entire project.
The project number, engineer, service date and other
pertinent information is entered into the database and
linked to the polygon. Thus, queries can be made using
any of this information once it is entered.
- Determine the scale and sheet sizes
The engineer determines the overall scale of the project
and the size of the paper to be used (i.e. 1":100' on a
"D" size sheet).
- Divide the project into separate work print sheets
Using the sheet size determined in Step 3, work print
sheets are placed, one at a time, over the entire
project. The job and sheet numbers are entered into the
database.
- Save this drawing to a file
If a "key map" for the project is desired, the map
should be saved now. This key map shows the entire
scope of the project as well as each work print sheet as
it is laid out along the project.
- View the first work print sheet Each work print
sheet is viewed and worked on individually.
- Add new facilities and annotate existing ones
New facilities are placed and re-arrangements are made
on the work print sheet. The titleblock on the sheet is
also completed during this step. Streets, roads,
buildings, cable callouts, other utilities and
additional data can be annotated directly from the
database. This continuous connectivity across all work
print sheets and the seamless database enables the
software to calculate a loop makeup and perform cable
throws.
- Tabulate the work sheet
Quantity totals for facilities can be placed anywhere on
the sheet or saved to a file for later use. Tabulation
by sheet, project or other criteria is a time-saving
option. Pricing and material take-offs can be generated
from the database.
- Plot the work print
At this point, the file can be plotted for hard copy or
saved if you anticipate further revisions to the sheet.
Saving is not necessary because the file can be
re-created at anytime by querying it from the database
again.
- Proceed through all project sheets
The process is repeated, one sheet at a time, until each
work print comprising the project is completed.
- Insert the project into the database
Since the landbase and existing facilities were queried
from the database at the beginning of the project, they
need not be reinserted into the database. Only those
facilities and landbase items that have been added or
modified are entered into the database at this time as
Pre-Post.
- Make any necessary construction changes or
revisions
Once the work prints are issued and as construction
progresses, changes and revisions can be made to the
project to reflect any changes made in the field. All
changes are made to the database, so reports for
pricing, material takeoffs and CPRs can be updated
easily.
- Post to As-Built status
When the project is done, it is posted to an "as-built"
status. This process transforms facilities from
"proposed" to "existing." All previous revisions are
automatically recorded.
REALIZING THE DAY-TO-DAY BENEFITS OF GIS
AND WORK PRINT GENERATION
In summary, benefits can be realized through reduced
costs, increased profits & enhanced customer service.
David Lankford
President & CEO
CADTEL Systems, Inc.
11811 N. Tatum Blvd., Ste. 4080
Phoenix, AZ 85028-1624
(602)953-4888
(602) 953-4833 FAX
scotta@cadtel.com