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CONNECT. TRANSFORM. AUTOMATE.
Mapping for ADA Compliancy
Raymond Kinser
California CAD Solutions, Inc.
Project Plan
!  Map sidewalk and intersection defect data:
!  Pedestrian Signals (177)
!  Curb Ramps at Intersections (633)
!  Sidewalk (Mid-Block) defects (33,133)
!  Use existing city street data
!  Publish data to city GIS site and allow editing of
data through the GIS
Situation
!  City contracted and received a Sidewalk and
Intersection defect dataset from an ADA
consultant
!  City did not opt for the consultant’s original
mapping proposal
!  Delivery would have been on a GIS system
separate from the City’s existing GIS
!  Funding wasn’t currently available
!  City needs to have the data mapped after the
original project has been completed
Assumptions
!  Data would be:
!  Mappable
!  Clean
!  Consistent
!  Actual
!  Referential
!  Database compatible
!  What could possibly go wrong?!?
Reality
!  “Database” was multiple Excel files
!  Data was FAR from clean and consistent
Reality (cont.)
!  Consultant used a road source they didn’t get
from the City and they didn’t supply the road
source to the City – (Street Segment References were
useless)
!  Non-existent streets were entered
!  Direction indicators were based on direction of
travel and not fixed compass bearing
!  Time to start sweating!!
Solution
!  Pray and fire up FME
!  Catalog and fix data anomalies
!  Over 100,000 data edit issues to address
!  Incorrect street names and designators
!  Leading/trailing spaces as well as paragraph breaks
!  Non-Existent streets
!  Ambiguous location definitions
!  “ER Burton Park Chidren Playground South Entrance”
!  “South DW at 189 el camino”
!  “Home Depot and Lucky DW”
!  Create routine to correct data errors using
AttributeTrimmers, Filters, Creators, & ValueMappers
Mapping for ADA Compliancy
Data Scrub
!  Iterative process:
!  Run data normalization routine
!  Examine the unmatched records
!  Investigate reason for no-match
!  Update FME routine with new data changes
!  End Result is database with corrected data
Create Street & Intersection Data
!  Used TopologyBuilder to create a street network
!  Start and end nodes for streets
!  Unique list of streets at each intersection
!  Count of road segments at intersection
!  Combined streets with private streets
!  Prep for adding new road segments
Create “Multi-Segment” Roads
Create “Multi-Segment” Roads
Create “Multi-Segment” Roads
!  Join individual road segments in AutoCAD
!  Run FME Routine:
!  Assign start and end nodes from topology data
(created in prior routine)
!  Assign unique segment ID
!  Combine with existing network segments
Match Defect Record to Street Segment
!  Run FME routine:
!  Match defect data records to street segment
!  Determine and assign direction
!  Make manual/specific assignments
Mapping for ADA Compliancy
Map Defects with Proper Street Offset
!  Mapping parameters dictated by client:
!  Offset defects from centerline to proper side of
street
!  Mix of points and lines based on defect length
!  Make sure not to map defects in intersections
Map Defects
!  Modify data to make processing easier with
Snipper in later routine
Snippers Rule!
!  Prep data for snipping
Snip The Data
Snipper Settings
Process Intersections
!  Unusable directional reference information
mandated another method for placement
!  Needed to rotate points around the intersection
!  FME Store to the Rescue!
!  Found and downloaded the 2DDirectionExtender
!  Don’t Forget About the online FME Resources
Scatter Data Points
!  Quickly set of a couple of attributes
and you are ready to go
In the GIS Ready to Edit and Report
Mapping for ADA Compliancy
Thank You!
!  Questions?
!  For more information:
!  Raymond Kinser (raymond.kinser@calcad.com)
!  California CAD Solutions, Inc.
!  www.calcad.com

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Mapping for ADA Compliancy

  • 1. CONNECT. TRANSFORM. AUTOMATE. Mapping for ADA Compliancy Raymond Kinser California CAD Solutions, Inc.
  • 2. Project Plan !  Map sidewalk and intersection defect data: !  Pedestrian Signals (177) !  Curb Ramps at Intersections (633) !  Sidewalk (Mid-Block) defects (33,133) !  Use existing city street data !  Publish data to city GIS site and allow editing of data through the GIS
  • 3. Situation !  City contracted and received a Sidewalk and Intersection defect dataset from an ADA consultant !  City did not opt for the consultant’s original mapping proposal !  Delivery would have been on a GIS system separate from the City’s existing GIS !  Funding wasn’t currently available !  City needs to have the data mapped after the original project has been completed
  • 4. Assumptions !  Data would be: !  Mappable !  Clean !  Consistent !  Actual !  Referential !  Database compatible !  What could possibly go wrong?!?
  • 5. Reality !  “Database” was multiple Excel files !  Data was FAR from clean and consistent
  • 6. Reality (cont.) !  Consultant used a road source they didn’t get from the City and they didn’t supply the road source to the City – (Street Segment References were useless) !  Non-existent streets were entered !  Direction indicators were based on direction of travel and not fixed compass bearing !  Time to start sweating!!
  • 7. Solution !  Pray and fire up FME !  Catalog and fix data anomalies !  Over 100,000 data edit issues to address !  Incorrect street names and designators !  Leading/trailing spaces as well as paragraph breaks !  Non-Existent streets !  Ambiguous location definitions !  “ER Burton Park Chidren Playground South Entrance” !  “South DW at 189 el camino” !  “Home Depot and Lucky DW”
  • 8. !  Create routine to correct data errors using AttributeTrimmers, Filters, Creators, & ValueMappers
  • 10. Data Scrub !  Iterative process: !  Run data normalization routine !  Examine the unmatched records !  Investigate reason for no-match !  Update FME routine with new data changes !  End Result is database with corrected data
  • 11. Create Street & Intersection Data !  Used TopologyBuilder to create a street network !  Start and end nodes for streets !  Unique list of streets at each intersection !  Count of road segments at intersection !  Combined streets with private streets !  Prep for adding new road segments
  • 14. Create “Multi-Segment” Roads !  Join individual road segments in AutoCAD !  Run FME Routine: !  Assign start and end nodes from topology data (created in prior routine) !  Assign unique segment ID !  Combine with existing network segments
  • 15. Match Defect Record to Street Segment !  Run FME routine: !  Match defect data records to street segment !  Determine and assign direction !  Make manual/specific assignments
  • 17. Map Defects with Proper Street Offset !  Mapping parameters dictated by client: !  Offset defects from centerline to proper side of street !  Mix of points and lines based on defect length !  Make sure not to map defects in intersections
  • 18. Map Defects !  Modify data to make processing easier with Snipper in later routine
  • 19. Snippers Rule! !  Prep data for snipping
  • 22. Process Intersections !  Unusable directional reference information mandated another method for placement !  Needed to rotate points around the intersection !  FME Store to the Rescue! !  Found and downloaded the 2DDirectionExtender !  Don’t Forget About the online FME Resources
  • 23. Scatter Data Points !  Quickly set of a couple of attributes and you are ready to go
  • 24. In the GIS Ready to Edit and Report
  • 26. Thank You! !  Questions? !  For more information: !  Raymond Kinser (raymond.kinser@calcad.com) !  California CAD Solutions, Inc. !  www.calcad.com