integrating cad & gis in a municipal environment

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Case Study; City of Vancouver by Martin Tilt, GIS Analyst

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Page 1: Integrating CAD & GIS in a Municipal Environment
Page 2: Integrating CAD & GIS in a Municipal Environment

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

Page 3: Integrating CAD & GIS in a Municipal Environment

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

Page 4: Integrating CAD & GIS in a Municipal Environment

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

Page 5: Integrating CAD & GIS in a Municipal Environment

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).

Page 6: Integrating CAD & GIS in a Municipal Environment

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

Page 7: Integrating CAD & GIS in a Municipal Environment

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.

Page 8: Integrating CAD & GIS in a Municipal Environment

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

Page 9: Integrating CAD & GIS in a Municipal Environment

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!

Page 10: Integrating CAD & GIS in a Municipal Environment

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

Page 11: Integrating CAD & GIS in a Municipal Environment
Page 12: Integrating CAD & GIS in a Municipal Environment

CADD DESIGN

GIS

ASSET MANAGEMENT

Page 13: Integrating CAD & GIS in a Municipal Environment

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

Page 14: Integrating CAD & GIS in a Municipal Environment

Thanks for attending!

Martin TiltGIS AnalystCity of Vancouver [email protected]