LUCA Forms, Letters, User Guides, and other Items

6

Map Updates

2010 Census LUCA Training Workshop

Map Updates

1

In this section, you will learn how to identify any additions, deletions, or
corrections to features on the Census Bureau maps, and to identify any
additions/annexations, deletions/deannexations, and boundary corrections
to your governmental boundaries.

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Section 6 Participant Guide

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Map Updates

Overview

2010 Census LUCA Training Workshop

Objective

Upon completion of this lesson, you will be
able to update Census Bureau maps.

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Objective
Upon completion of this lesson, you will be able to update Census
Bureau maps.

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Reading Census Bureau Maps
2010 Census LUCA Training Workshop

Reading Census Bureau Maps

Three types of paper map sheets:
• Index sheets
• Parent sheets
• Insets

4

Paper Maps
There are three types of paper map sheets:
1. Index Sheets – for reference
2. Parent Sheets – for updates
3. Inset Sheets – for updates

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Reading Census Bureau Maps
2010 Census LUCA Training Workshop

Map Border
•
•
•
•
•
•
•
•

Key to adjacent areas
Signature box for BAS Official
Confidential data disclosure
Entity identification information
Bar code
Scale
North arrow
MAF/TIGER Accuracy Improvement
Project (MTAIP) credit

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Map Border
The map border contains:
• The key to adjacent areas, if your jurisdiction has multiple map
sheets.
• Signature box for the Boundary and Annexation Survey (BAS)
Official.
• Confidential data disclosure statement, if Title 13.
• Entity identification information.
• Bar Code.
• Scale.
• North arrow.

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Reading Census Bureau Maps
Map Border (cont.)
• MAF/TIGER Accuracy Improvement Project (MTAIP) credit for
counties that have undergone the MTAIP process.

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Map Updates

Reading Census Bureau Maps
2010 Census LUCA Training Workshop

Map Legend
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•
•
•

Boundaries
Transportation
Other Features
Census Blocks and
Symbols
• Landmarks
• Footnotes and Notes

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Map Legend
• Boundaries
• Transportation
• Other Features
• Census Blocks and Symbols
• Landmarks
• Footnotes and Notes

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Map Updates

Walkthrough: Map Updates
2010 Census LUCA Training Workshop

Adding a Street

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Adding a Street
There are four steps to adding a street:
1. Using a purple pencil, draw the location of the new street on
the map.
2. Print the street name.
3. Print the address ranges for each side of the new street.
4. Print the address breaks where Spring Street intersects
Coolspring St. and Searight Ave.

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Map Updates

Walkthrough: Map Updates
2010 Census LUCA Training Workshop

Correcting a Street Name

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Correcting a Street Name
There are three steps to correcting a street name:
1. Using a purple pencil, cross out the incorrect name Bryan
Street, and print the correct name, Ryan Street above it.
2. Use double hatch marks to show the extent of the name
change.
3. Print the alternate name (County Route, Co Rt. 9) in
parentheses, if applicable.

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Map Updates

Walkthrough: Map Updates
2010 Census LUCA Training Workshop

Moving a Street

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Moving a Street
To move a street:
1. Using a purple pencil, cross out the incorrect location of
Winona Street with a series of “Xs.”
2. Redraw Winona Street in its correct Census Block, 1034,
and print the street name and address ranges along the
moved street.
3. Draw an arrow to the correct location of Winona Street.
4. Print the address breaks where Winona Street intersects
Lincoln Street.

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Map Updates

Walkthrough: Map Updates
2010 Census LUCA Training Workshop

Deleting a Street

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Deleting a Street
Dunlap Street
1. To delete the portion of Dunlap Street that no longer exists,
use a purple pencil to “X” out the section that no longer
exists.
2. Use double hatch marks to define the extent of the deleted
segment when deleting only part of the street.
3. As you can see, a portion of Dunlap Street still exists to the
north of Pershing Court.
Carlisle Street
4. To delete Carlisle Street, “X” out the entire street within
blocks 3002, 3003, 3006, and 3007 and put a purple line
through the name.

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Map Updates

Shapefiles
Key Terms and Concepts
Shapefile* – Data set used to represent geographic features such as
streets and boundaries. Shapefiles can represent point, line, or area
features and require GIS or mapping software.
North American Datum 1983 – Geocentric datum based on the
Geodetic Reference System (GRS) of 1980 with the center of the earth as
a reference point.
Change Type Codes – Codes entered by the LUCA participant on the
database tables of the shapefiles indicating the type of modification made
to the Census Bureau shapefiles.
Metadata – Data that describe other data. The Census Bureau requests
that metadata be submitted using the Federal Geographic Data
Committee’s (FGDC) Content Standard for Digital Spatial Metadata.
Data dictionary – A data dictionary describes the fields included in any
data tables associated with your submission. A data dictionary should list
all the fields, describe the data in each field, and provide the legal values
and their definitions for each field.
All lines layer – Shapefile containing all of the lines contained in the
TIGER program in a single layer. Shapefile updates must be made to the
all lines layer.

* All shapefiles provided by the Census Bureau are in Environmental Systems Research Institute
(ESRI) format. The use of brand names does not represent an endorsement of a company or its
products by the U.S. government. Due to the wide use of ESRI products by our partners in the GIS
community, and ubiquitous use of the shapefile format as a medium for GIS data exchange, the Census
Bureau provides data in shapefile format.

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Shapefiles

2010 Census LUCA Training Workshop

Shapefiles Overview

•
•
•
•

Created to facilitate digital updates
Requires the use of GIS software
Contains no Title 13 information
Provided in Environmental Systems Research
Institute (ESRI) shapefile format
• Provided with shapefile layers for legal boundary
edits

13

Census Bureau’s Shapefiles Overview
The Census Bureau provides shapefile layers for legal boundaries that
you may edit.

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Shapefiles
2010 Census LUCA Training Workshop

Shapefile Setup Guidelines
1. Verify CD-ROM contains the zip file with the
shapefiles that contain your entity
–

Shapefiles are county based files

2. Copy and decompress shapefiles to a directory on
your hard drive
3. Open the shapefiles in a GIS program

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Shapefile Setup Guidelines
To set up the file:
1. Open the CD to ensure that it contains the zip file with the
shapefiles for your entity.
2. Copy and decompress the shapefiles to a directory on your
hard drive.
3. Open the shapefiles in a GIS program.
You will primarily be using two shapefiles provided: one is the
block layer that shows the census blocks and the other is the all lines
layer.
• Contact the Help Desk if you need assistance or more information.

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Shapefiles

2010 Census LUCA Training Workshop

Matching Coordinate System

• Provided in Geographic Coordinate System
GCS_ NAD83 format
• Can be projected into local coordinate system

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Matching Coordinate Systems
Census Bureau’s files are in Geographic Coordinate System
GCS_NAD83 format.
You can transform the Census Bureau’s shapefile to your local
coordinate system. However, they will need to be converted back to
GCS_NAD83 format before you return them to the Census Bureau.

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Shapefiles
2010 Census LUCA Training Workshop

All Lines Layer Data Dictionary

Field

Length

Type

Description

TLID

10

Integer

TIGER/Line ID

MTFCC

5

String

Feature MTFCC

Fidelity

1

Integer

Shape Fidelity Flag

FULLNAME

120

String

Feature name

String

Type of digital linear update

CHNG_TYPE 4

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All Lines Layer Data Dictionary
The data dictionary defines the attribute information for each field in
the attribute table of the all lines layer.
The table in the slide displays the fields of the All Lines Layer Data
Dictionary.

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Shapefile Updates
2010 Census LUCA Training Workshop

Change Type Codes
Code

Description

AL

Add Line

CN

Change Name

CF

Change Feature Class

DL

Delete Line

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Change Type Codes
There are four change type codes:
1. Add Lines
2. Change Name
3. Change Feature Class
4. Delete Line

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Map Updates

Shapefile Updates
2010 Census LUCA Training Workshop

Shapefile Updates – Adding a Feature

1. Add or copy missing features into the All Lines Layer
2. Leave TLID and Fidelity fields blank
3. Enter the appropriate MTFCC
4. Enter the feature name in the FULLNAME field (if any)
5. Enter change code in the CHNG_TYPE field

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Adding a Feature
There are five steps to adding a feature:
1. Add or copy missing features into the All Lines Layer.
In the attribute table:
2. Leave the TLID and Fidelity fields blank.
3. Enter the appropriate MTFCC.
4. Enter the feature name in the FULLNAME field (if any).
5. Enter the change code in the CHNG_TYPE field.

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Map Updates

Shapefile Updates
2010 Census LUCA Training Workshop

Shapefile Updates – Correcting a Feature
Name

•

To change the name of an existing feature:
1. Edit the FULLNAME field
2. Enter CN in the CHNG_TYPE field

•

To change the MTFCC of an existing feature:
1. Edit the MTFCC
2. Enter CF in the CHNG_TYPE field

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Correcting a Feature Name
To correct a feature name:
1. Edit the FULLNAME field.
2. Enter CN in the CHNG_TYPE field.
To change the MTFCC of an existing feature:
1. Edit the MTFCC.
2. When changing the feature class code of a feature, enter CF
in the CHNG_TYPE field (i.e., a local road was mistakenly
coded as a highway).

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Map Updates

Shapefile Updates
2010 Census LUCA Training Workshop

Shapefile Updates – Deleting a Feature

• To delete a feature:
– Enter DL in the CHNG_TYPE field

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Deleting a Feature
To delete a feature, enter DL in the CHNG_TYPE field for all
deleted segments.

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Map Updates

Shapefile Updates

2010 Census LUCA Training Workshop

Shapefile Updates – Move or Reshape a
Feature
1. Enter DL in the CHNG_TYPE field
2. Add the street at the correct location in the All Lines
Layer
3. Enter the appropriate MTFCC
4. Enter Winona Street in the FULLNAME field
5. Enter AL in the CHNG_TYPE field

™ Updates are temporary until confirmed by the
Address Canvass Operation
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Move or Reshape a Feature
To move or reshape a feature:
1. Enter DL in the CHNG_TYPE field.
2. Add the street at the correct location in the All Lines Layer.
3. Enter the appropriate MTFCC.
4. Enter the street name in the FULLNAME field.
5. Enter AL in the CHNG_TYPE field.
Updates are temporary until confirmed by the Address Canvass
Operation.

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Map Updates

Shapefile Updates
2010 Census LUCA Training Workshop

Sample Attribute Table Updates

TLID

MTFCC

FIDELITY

FULLNAME

CHNG_TYPE

S1400

Spring Street

AL

S1400

Winona Street

AL

9999999995

S1400

0

Ryan Street

CN

9999999996

S1400

0

Dunlap Street

DL

9999999997

S1400

0

Carlisle Street

DL

9999999998

S1400

0

Carlisle Street

DL

9999999999

S1400

0

Winona Street

DL

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Sample Attribute Table Updates
The slide displays the sample updated attribute table to show all of
the corrections you just performed:
• Spring Street added.
• Bryan Street corrected to Ryan Street.
• Segment of Dunlap Street deleted.
• Carlisle Street deleted.
• Winona Street moved.

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Map Updates

Shapefile Updates
2010 Census LUCA Training Workshop

Digital Road Correction Sample
Copy all features with values in CHNG_TYPE field into new shapefile layer
Road Name Change: In the
attribute table, populate the
CHNG_TYPE field with ‘CN’ and the
new road name in the FULLNAME
field for each affected segment.

New Road Feature: Include all new road segments,
in the attribute table. Populate the new road name in
the FULLNAME field for all new segments, and populate
the CHNG_TYPE field with ‘AL.’

Road Segments

Delete Feature: Include all road
segments that you want to delete,
and populate the CHNG_TYPE field
with ‘DL’ in the attribute table

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Digital Road Correction Sample
Copy all features with values in the CHNG_TYPE field into a new
shapefile layer.
The feature updates shapefile will resemble what is shown on the
slide.

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Map Updates

Shapefile Updates
2010 Census LUCA Training Workshop

Metadata
• Submit appropriate metadata with your file
• The Federal Geographic Data Committee’s (FGDC)
Content Standard for Digital Spatial Metadata
– www.fgdc.gov/metadata

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Metadata
Metadata describes the data content, coordinate system/projection,
author, source, and other characteristics of GIS files, and are critical
for Census Bureau staff to efficiently and accurately process files.
You must submit the appropriate metadata with your file.

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Map Updates

Shapefile Updates
2010 Census LUCA Training Workshop

Metadata
– Citation
– Description
– Time period of content
– Spatial domain
– Point of contact Data quality information
– Spatial reference information
– Entity and attribute information
– For more information visit the FGDC
website at www.fgdc.gov/metadata
www.fgdc.gov/metadata
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Metadata
You must complete the following sections of the Federal Geographic
Data Committee’s (FGDC) metadata form:
o Citation
o Description
o Time period of content
o Spatial domain
o Point of contact
o Data quality information
o Spatial reference information
o Entity and attribute information
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Shapefile Updates
Metadata (cont.)
For more information visit the FGDC website at
www.fgdc.gov/metadata.
If you edit the existing fields or add fields to the attribute table, you
must submit an updated data dictionary either as part of the metadata
or as a separate file.
If you do not modify the existing fields in the Census Bureau’s
original attribute table, you are not required to submit a data
dictionary.

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Map Updates

Shapefile Updates
2010 Census LUCA Training Workshop

Shapefile Submission
1. Name layer:
LUCA_2010__FEAUpdates.shp
2. Include appropriate metadata
3. Compress all updated materials into ZIP* file
called: LUCA_2010__Return.ZIP
4. Burn file to CD-ROM
5. Save back-up copy for your jurisdiction
*

If you have boundary updates, ZIP the file and burn to a
CD-ROM after making your updates
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Shapefile Submission
1. Name the new shapefile: LUCA_2010_ _FEAUpdates.shp.
2. Include appropriate metadata.
3. Compress all updated materials, Shapefile, and Metadata into one
ZIP formatted file* called: LUCA_2010_ _Return.ZIP.
4. Burn the file to a CD-ROM or DVD.
5. Save a back-up copy for yourself.
* If you have boundary updates, ZIP the file and burn to a CD-ROM

after making your boundary updates.
Refer to your User Guide for detailed instructions.

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Boundary Updates
2010 Census LUCA Training Workshop

Boundary Updates

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If your government provides legal boundary updates during LUCA, the
Census Bureau will not contact your government to participate in the
2008 Boundary and Annexation Survey (BAS). You must register to
participate in the LUCA program before October 31, 2007 to receive
your 2008 BAS materials with your LUCA program materials.

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Map Updates

Boundary Updates
2010 Census LUCA Training Workshop

Paper Map Example
Redraw correct
feature location
“X’ out incorrect
feature location
Draw the new
boundary

BC

ORD 014-56
12/03/06

“X” through the
old boundary
Ordinance
number and
effective date
Boundary correction
“BC”

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Paper Map Boundary Changes and Corrections
To update boundaries on the paper map:
1. Draw the boundary in its correct location and cross out the
portion of the old boundary using a string of red “X’s.”
2. For each annexation or deannexation that you draw on the
map, add the ordinance number or other legal identifier of
the action authorizing the change, along with the effective
date.
3. Complete the red signature box found in the lower right
corner of the Census Bureau map.
• For each location where you correct the accuracy of the
boundary, print the letters “BC” for “boundary correction” within
the corrected area.

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Boundary Updates
Paper Map Boundary Changes and Corrections (cont.)
• If a boundary is shown as coincident with a feature, but the
feature location is not shown correctly, use a purple pencil to
cross out the incorrect feature location and redraw the feature in
purple pencil in the correct location. There is no need to make
any updates to the boundary.

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Map Updates

Boundary Updates
2010 Census LUCA Training Workshop

Boundary and Annexations Survey Form

• Required to process your boundary updates
• Form included with your LUCA materials

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Boundary and Annexations Survey Form
This form is included with your LUCA materials and is required for
the Census Bureau to process boundary updates.

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Boundary Updates
2010 Census LUCA Training Workshop

Digital Boundary Changes and Corrections

• Digital BAS Respondent Guide and form are
included with your LUCA materials

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Shapefile Boundary Changes and Corrections
Submit boundary corrections using digital files as described in the
Digital BAS Respondent Guide included with your LUCA materials.

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Map Updates

Exercise: Map Updates
Instructions
1. This is an individual exercise.
2. Read the scenarios on the following page.
3. For each scenario, determine the appropriate change to the Census
Bureau map and record that change on the map provided.
4. You have 15 minutes to complete this exercise.

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Map Updates

Exercise: Map Updates
Scenarios
1.

Thomas Street is actually Thompson Street.

2.

Oak Street is a new street in census block 1006 that runs north
to south from Cleveland Avenue to Prospect Street, halfway
between Euclid Avenue on the east and Thompson Street on
the west.
a. The address ranges are 100 – 106 on the east and 101-107
on the west of Oak Street.
b. The address breaks are 503 and 505 on the north at the
intersection with Cleveland Avenue and 804 and 806 on the
south at the intersection with Prospect Street.

3.

The city demolished the houses on Felty Street located south of
Cleveland Avenue and north of Prospect Street, to construct a
new park. Felty Street no longer exists.

4.

Austin Street, shown between census blocks 2003 and 2004, is
actually located in census block 1032 directly north of where it
is shown on the map.
a. The address ranges are 100 – 104 on the east and 101 – 105
on the west of Austin Street.
b. The address breaks are 703 on the west and 705 on the east
at the intersection with Evans Street and 1104 on the west
and 1106 on the east at the intersection with Connellsville
Street.

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Map Updates

Exercise: Map Updates
Map Corrections

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Map Updates

Summary

2010 Census LUCA Training Workshop

Summary
• Map updates may be made in paper form or
digitally.
• Changes made to maps should be reflected on the
Address List, and vice versa.
• LUCA participants who register for the LUCA
program by October 31, 2007 will not be asked to
participate in the 2008 BAS program
• The User Guide contains complete directions for
all updates. Additionally, the Census Bureau Help
Desk is available, as needed.
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Remember, map updates may be in paper form or electronic, and
changes made to maps must also be reflected on the Address List
and vice versa.

If you have any questions, please refer to your User Guide or call the
Census Bureau help desk. Remember, help is just a phone call
away!

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