mapping capital improvement program projects at the city of austin
DESCRIPTION
TRANSCRIPT
Mapping Capital Improvement Program Projects at the City of Austin
Logan Pugh – Programmer AnalystBen Vanderford – GIS AnalystAnnie Van Zant - Project Coordinator
April 8, 2013
The Capital Improvement Program
Projects can cost millions of dollars to design and construct:
Animal Services Center, Water Treatment Plants, the Street Reconstruction Program, the new Central Library, Park and Facility Improvements
Funded by the followingvoter-approved bond electionsutility revenue bondsgrantsthe capital budget
Why Map These Projects?
Replace “elevator project coordination”
Improve situational awareness
Create dig-once opportunities between City departments and other agencies/municipalities
Provide information to citizens
Assist with business reporting
Account for traffic control, special events planning, and hauling routes
The Process
1. CIP Project Managers maintain information in a project management database
2. Project Managers contact their department’s GIS coordinator(s) to map their project with the project ID and approximate limits of construction
3. An FME workspace runs nightly on FME Server: Integrates each department’s source features into one polygon
feature class in an SDE geodatabase Joins the polygon feature class to the project management
database using the project ID, adding key project coordination information
Custom change detection technique is used to perform incremental updates/additions/deletions
The FME Workspace
Key TransformersSQLCreator
Used to query the project management database – creates a feature for each record returned
FeatureMerger Used to join the attributes of the project management database to the
departments’ source features. Also used in change detection to take the appropriate attributes from either the
original or the updated features.
SchemaMapper Allows us to use external files to define how attributes and values are mapped
from departments’ source features to the CIP Feature Class. Also used to map large number of different project types in the project
management database to a more manageable number for symbolization in GIS and web applications
CRCCalculator Given a set of attributes and the geometry of a feature, produces a unique
“check value” that can be stored and later used to compare against the same feature in order to determine whether it has been modified since.
This part of the workspace reads in our source features and queries the project management database. Then we map the attributes of both streams of data into a common schema.
Here we join the records from the project management database to the source features on the project ID
We also map the large number of project types from the project management database to a smaller number of project types using an external lookup table
Here we buffer point and line features so that the all the output features are polygons.
A fixed buffer amount of 20 feet is used, although we could allow for different buffer amounts for different types of features.
We calculate a CRC for each incoming feature and compare it against that of the feature stored in the SDE feature class.
We also check whether the feature was added or removed depending on which port of the FeatureMerger it comes out of
IMMPACT
Infrastructure Management, Mapping, Planning, And Coordination Tool
Web-based mapping application First City of Austin application to show CIP projects and permits
together Explorer View: shows CIP projects and permits in a geographic
context Details View: lists potential conflicts & opportunities for any
given CIP project or permit Reports View: users can query CIP projects and permits based
on defined criteria
Lessons Learned Use database of record information Need create a 1-to-1 relationship between projects &
features Create a culture of cooperative planning efforts between
departments to establish standards and best practices
Future Recommendations Take advantage of new features in FME Server Provide project information to the public Include other departments with CIP mapping Create a similar process for projects not funded by the CIP
