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Integrating CADD & GIS in a Municipal Environment
1.
2. The City of Vancouver
3rd Largest City in Canada
Home of the 2010 Winter Olympics and
Paralympics
Population 580,000
Over 2,000,000 in Greater Vancouver
area
Covers 113 sq. kilometers. 44 sq. miles
3. Engineering Department
Plan, build, improve, manage, and maintain the following
services in accordance with policies set by City Council:
– Water supply and distribution
– Sewerage and drainage
– Utility corridor management
– Street lighting and traffic signals
– City communications system
– Streets, lanes, boulevards, sidewalks, and bridges
– Solid waste reduction, refuse collection, disposal, and
street cleaning
– Transportation
4. In the beginning….
GIS system in the early 1990’s had rudimentary
tools to extract line work into CADD format
Process had many steps, was rather clunky, and
only a few of the design branches bought in.
As a result CADD files began to pile up in local
drives
Data within was of little value to the rest of the
organization.
Efforts made to develop a GIS interface to our
CADD system
5. And then we created….
In the late 1990’s the City created a dedicated
CADD Server
CADD Server stored base files that had been
generated from the GIS system
Made use of drawing templates that ensured
that individual designers shared common
libraries and a common coordinate system
The base files were static files updated from GIS
on a scheduled basis (often monthly).
6. Ground vs. Grid (1)
Streets Division began using Total Stations
to collect survey data and generate
electronic field books.
Data was downloaded and cleaned up and
passed on to the designers
Conflicts arose with our Land Survey
Branch who were managing the GIS
cadastral base in grid units
7. Ground vs. Grid (2)
Decision made to build a CADD-based
repository for these files
In time some of the data was translated to
allow it to be overlaid on the GIS data.
8. Design to Construction (1)
In 2002 moved our GIS data into an
spatially enabled GIS database
CADD users and GIS users could connect to
the geo-database and query the data into a
CADD file
Ensured that a designer would get the
most up-to-date background data for their
new design
9. Design to Construction (2)
Design printed out and sent to Operations
who constructed the new infrastructure
Field changes manually tracked and passed
to office staff for entry into GIS
Not every change made it back into the
GIS!
10. PSAB & Asset Management
Began implementation of Enterprise Asset
Management in 2007
In part in response to PSAB 3150
City acquired new GIS tools in 2008 to
support Asset Management Strategy
Asset must be created first in GIS before
the work order to construct the asset can
be issued
Design-based GIS using concept of jobs
13. Key Points for CADD/GIS Integration
Get the data into a central repository that
is accessible to both your CADD and GIS
tools
Leverage web mapping solutions as an
alternative to costly CADD packages
Limit the number of data ‘handoffs’
particularly during design phase
There is no ‘single solution’
Business process may need to change