Introduction to the Boundary and Annexation Survey BAS

1. 1 Introduction to the Boundary and Annexation Survey (BAS) South Carolina Arc Users Network Conference Bernadette Jenkinson U.S. Census Bureau January 22, 2007

2. Presentation Overview � Boundary and Annexation Survey (BAS) - What is the BAS? - Why do we conduct the BAS? - Who benefits from the BAS? - What are the current and future BAS submission methods? - What are important dates for the current BAS year? - Who should you contact if you have questions?

3. What is the Boundary and Annexation Survey (BAS)? Start and Rev. 1972 Start and Rev. 1972

4. 4 Boundary and Annexation Survey (BAS) Voluntary survey conducted annually to collect boundaries for legal areas Title 13, United States Code Census, Section 6 gives the Census Bureau the authority to conduct the survey Office of Management and Budget (OMB) approves the materials for the survey Federal Register Notice public is notified of the survey and given the opportunity to comment Minimizing the resource impact to the governments to complete the survey Minimizing the resource impact to the governments to complete the survey

5. 5 Boundary and Annexation Survey (BAS) Primary source of information regarding legal boundaries names of governments legal status types of governmental units new government dissolved government boundary changes higher-level geographic relationships e.g. a place annexes into a new county or minor civil division (MCD) Need to provide examples of the governments Ginger Blue, MO � 1965 ---- Geographically Updated Population Certification Program (GUPCP)Need to provide examples of the governments Ginger Blue, MO � 1965 ---- Geographically Updated Population Certification Program (GUPCP)

6. 6 Boundary and Annexation Survey (BAS) Governmental units (entities) included in the survey counties and their equivalents MCDs incorporated places American Indian reservations and off-reservation trust lands (federally recognized)

7. Why we conduct the Boundary and Annexation Survey (BAS)?

8. 8 Boundary and Annexation Survey (BAS) Ensures that population and housing counts are assigned to the correct geography Used to present statistics for various censuses and surveys American Community Survey (ACS) Population Estimates Program 2010 Decennial Census Programs To support the Office of Management and Budget Circular No. A-16 The Census Bureau is responsible for collecting and maintaining Legal Boundaries Geospatial One-Stop The National Map GEO spatial One-stop --- It also supports one of the Presidents e-government ini. USGS ini. � The national map 2. What is the National Spatial Data Infrastructure (NSDI)? ��� a. What is the vision for the NSDI? The NSDI assures that spatial data from multiple sources (federal, state, local, and tribal governments, academia, and the private sector) are available and easily integrated to enhance the understanding of our physical and cultural world. The NSDI honors several key public values: Privacy and security of citizens' personal data and accuracy of statistical information on people, both in raw form and in derived information products. Access for all citizens to spatial data, information, and interpretive products, in accordance with OMB Circular A-130. Protection of proprietary interests related to licensed information and data. Interoperability of federal information systems to enable the drawing of resources from multiple federal agencies and their partners. The NSDI supports and advances the building of a Global Spatial Data Infrastructure, consistent with national security, national defense, national intelligence, and international trade requirements. International compatibility is an important aspect of the NSDI. Federal agencies will develop their international spatial data in compliance with international voluntary consensus standards, as defined by Circular A-119. ��� b. What are the components of the NSDI? The components of the NSDI are data themes, metadata, the National Spatial Data Clearinghouse, standards, and partnerships. GEO spatial One-stop --- It also supports one of the Presidents e-government ini. USGS ini. � The national map 2. What is the National Spatial Data Infrastructure (NSDI)? ��� a. What is the vision for the NSDI? The NSDI assures that spatial data from multiple sources (federal, state, local, and tribal governments, academia, and the private sector) are available and easily integrated to enhance the understanding of our physical and cultural world. The NSDI honors several key public values: Privacy and security of citizens' personal data and accuracy of statistical information on people, both in raw form and in derived information products. Access for all citizens to spatial data, information, and interpretive products, in accordance with OMB Circular A-130. Protection of proprietary interests related to licensed information and data. Interoperability of federal information systems to enable the drawing of resources from multiple federal agencies and their partners. The NSDI supports and advances the building of a Global Spatial Data Infrastructure, consistent with national security, national defense, national intelligence, and international trade requirements. International compatibility is an important aspect of the NSDI. Federal agencies will develop their international spatial data in compliance with international voluntary consensus standards, as defined by Circular A-119. ��� b. What are the components of the NSDI? The components of the NSDI are data themes, metadata, the National Spatial Data Clearinghouse, standards, and partnerships.

9. Who benefits from the Boundary and Annexation Survey (BAS)?

10. 10 The Census Bureau Accurate, up-to-date boundaries result in a more accurate housing tabulation count for all our censuses and surveys more accurate statistical data a reliable geographic reference source In turn this will benefit� (next slide)In turn this will benefit� (next slide)

11. 11 But��. Who Else Benefits? States Counties Townships Cities

12. 12 State-Level BAS Agreements State participation improves the BAS process and reduces duplication of effort Some states have the authority to either monitor or maintain boundary information for all legal entities in the state. Where this exists: Some states provide us a list (each November) of entities that have had annexations that year. The Census Bureau uses this list to determine which entities should get a BAS package. Other states provide legal updates and corrections via paper or digital file directly to us. Current state-level agreements Georgia, Kentucky, Michigan, Minnesota, Wisconsin, Alaska and the Commonwealth of Puerto Rico

13. 13 County-Level BAS Agreements Counties respond to the BAS for the entities within their jurisdiction. To consolidate the BAS responsibilities, county officials Reach agreement with entities to provide their BAS submission BAS packages only are mailed to the county BAS contact Places within the county no longer receive a separate BAS package Current county-level BAS agreements Delaware Co., OH, Frederick Co., MD, Wake Co., NC, and Ada Co., ID

14. How we conduct the Boundary and Annexation Survey (BAS)

15. 15 Determining the BAS Contact Each year BAS materials are mailed to our BAS contacts How do we determine who the BAS contact is? We are instructed by a local official as to who should receive the BAS package A local government employee responds to the BAS multiple consecutive years, the Legal Areas team will make them the BAS contact. If we have not received a BAS response for several years, the Legal Areas team will attempt to establish a contact in either a planning or GIS department. State Data Center staff provide contact updates to the Census Bureau during the telephone follow-up phase of BAS. If there is no BAS contact and the Census Bureau is unable to establish a contact, the package will be mailed to the Highest Elected Official (HEO)

16. 16 What are the current BAS submission methods?

17. 17 Current Submission Methods Traditional BAS E-BAS Digital BAS

18. 18 Traditional BAS Census Bureau mails paper maps and a BAS form to the BAS contact Participants annotate and return large scale paper maps and forms provide documentation for each legal boundary change (date, number, & acreage) If the participant does not have any changes to report, they can return a �No Change� postcard Five steps to update BAS 1. annotate legal boundary changes and/or corrections on the map 2. compare the address breaks at the intersection of any road and boundary to a local source 3. complete the form 4. print and sign your name, and enter the date in the �Signature Box� on each map that has changes return the signed maps and survey forms Boundary changes are drawn by the participants relative to the features present on the map. This may cause spatial inaccuracies but ensure correct topological location. Legal Disputes If it comes to our attention that an area of land is in dispute between two or more jurisdictions, we will not make boundary corrections or add annexations until the parties come to written agreement, or there is a documented final court decision regarding the matter/dispute. Five steps to update BAS 1. annotate legal boundary changes and/or corrections on the map 2. compare the address breaks at the intersection of any road and boundary to a local source 3. complete the form 4. print and sign your name, and enter the date in the �Signature Box� on each map that has changes return the signed maps and survey forms Boundary changes are drawn by the participants relative to the features present on the map. This may cause spatial inaccuracies but ensure correct topological location. Legal Disputes If it comes to our attention that an area of land is in dispute between two or more jurisdictions, we will not make boundary corrections or add annexations until the parties come to written agreement, or there is a documented final court decision regarding the matter/dispute.

19. 19 E-BAS Participants are able to login to a secure website submit a No Change postcard or form updates. are not able to submit map updates The E-BAS website is linked off of the BAS homepage (http://www.census.gov/geo/www/bas/bashome.html) and the username and password are provided in the Special Instructions section on the paper form. In 2008, E-BAS will be replaced with Web-BAS. Participants are not able to submit map changes via this website. Web BAS, discussed in a future slide, will allow No Change postcard, form updates, and map updates.Participants are not able to submit map changes via this website. Web BAS, discussed in a future slide, will allow No Change postcard, form updates, and map updates.

20. 20 Digital BAS First offered during the 2005 BAS for a limited number of entities Designed to accept submissions from experienced GIS users who modify Census Bureau spatial data Spatial data provided in shapefile format Goal is to permit governmental units to update digital files in place of paper maps submit boundary change information through digital file metadata Participants are required to follow the detailed requirements posted on the BAS website: http://www.census.gov/geo/www/bas/bashome.html Limited to entities and counties that have gone through the Census Bureau�s MTAIP process Digital BAS isn�t a straight forward method.Digital BAS isn�t a straight forward method.

21. 21 Digital BAS One specific issue with Digital BAS is that participants submit parcel based maps. This creates a problem because the Census Bureau geocodes its addresses based on the centerline. If parcel based boundaries are submitted all offsets need to be noted appropriately in the submission. One specific issue with Digital BAS is that participants submit parcel based maps. This creates a problem because the Census Bureau geocodes its addresses based on the centerline. If parcel based boundaries are submitted all offsets need to be noted appropriately in the submission.

22. 22 Topological Relationships in TIGER TIGER is a topologically integrated file Instead of having a layer for each feature class all information is stored in one file One line in TIGER can represent multiple boundaries and features This ensures that the spatial relationships between different boundaries and features are maintained

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26. 26 Topological Relationships Pull off road Adjacency issuesPull off road Adjacency issues

27. 27 Challenges of Using Parcel Based Source Files for Digital BAS Many localities develop their boundary file based on a parcel source file. Without specific guidance from BAS participants, the Census Bureau geocodes addresses and establishes population counts based on the relationship of an entity�s boundary to the road centerlines. The Census Bureau has established geographic offsets and corridors to aid in the assignment of addresses to the correct geography.

28. 28 What is a Geographic Offset? An area claimed by an entity that is only on one side of the road and does not contain any structures addressed to that side of the road. The Census Bureau geocodes addresses based on the centerline of roads If your boundary is not coincident with the centerline but follows the parcel line, and the residential structures along the road should be in your jurisdiction, you need to report a geographic offset By coding the offset the residential structures will be assigned to the correct geography

29. 29 What is a Geographic Offset?

30. 30 What is a Geographic Offset?

31. 31 What is a Geographic Corridor? An area that only includes road right-of-way and does not contain any structures addressed to either side of the road. Once again� The Census Bureau geocodes addressed based upon the centerline There are two types of geographic corridors An area where a road, or other feature is not incorporated by a place An area where a road, or other feature, is the only piece of incorporated place

32. 32 What is a Geographic Corridor?

33. 33 What is a Geographic Corridor?

34. 34 What additional participation methods are in development?

35. 35 Future Submission Methods Web-BAS MAF/TIGER Partnership Software

36. 36 Web-BAS Available for 2008 BAS Participants will be able to login to a secure website submit a �No Change� postcard, map updates, and form updates Participants will receive a user name and password in January of each year.

37. 37 MAF/TIGER Partnership Software Available for 2008 BAS Participants will receive a CD containing the software to install on to their computer one or more CD(s) containing the data for their entity and the surrounding area a user name and password to access the data in the software Participants will be able to submit map and form updates.

38. 38 What are important dates for the current BAS year?

39. 39 Current BAS Year Activities Important Dates Package Mailout January Digital Submission Notification Entities must indicate their interest in Digital BAS by February 15th Submissions Received by April 1, updates will be included in the population estimates program the following calendar year Digital Submissions Received by April 1st , updates will be processed for inclusion into the MAF/TIGER database

40. 40 Current BAS Year Activities Other Dates Prenotification September States Provide Universe list October-November State Data Center Follow-up March-May Traditional BAS Submissions Received By May 31 updates will be included in the next BAS materials Received After May 31 updates will be made after the next BAS mailing

41. 41 Future Goals Expand Digital BAS Partnership Agreements Increase the number of consolidated BAS partners at the county and/or state level Boundary Validation Program (BVP) After the 2010 BAS, the Census Bureau will send a Boundary Validation Map to the Highest Elected Official of every legal entity in the United States for final review before tabulation. Tool for people who may not have a GIS tool to make updates. We provide all the data and they provide us the updates.Tool for people who may not have a GIS tool to make updates. We provide all the data and they provide us the updates.

42. 42 Who should you contact if you have questions?

43. 43 Census Bureau Contacts Sending your package US Census BureauPO Box 5000Jeffersonville, IN 47199-5000 Requesting additional or replacement materials Phone: 1-888-817-2152Email: geo.bas@census.gov Requesting to participate in Digital BAS Phone: 301-763-1099Email: geo.bas@census.gov