ctpp in transtats the one-stop shop of transportation data
TRANSCRIPT
CTPPin
TranStatsThe One-Stop Shop of Transportation Data
www.transtats.bts.gov
www.transtats.bts.gov
www.transtats.bts.gov
ABOUT TRANSTATSTranStats offers analysts several unique features: • Interactive analytical tools (future plans for CTPP, available on other databases.)
– One-Way Statistical Summaries– Time Series Analysis– Online Graphics– Cross Tabulations
• Data download– Selective download of variables of interest – Download the data as comma separated files “csv” format directly to your PC for
analysis– Pre-zipped data files available for large databases – Download Analysis results – Print Analysis reports generated– Selective download by GROUPS of data
• Online data documentation– Profiles on each Database– Table Summaries and Profiles– Data Definitions– Code Information for Data variables
www.transtats.bts.gov
ABOUT CTPP: Census Transportation Planning Package
• CTPP is a collection of summary tables generated from the census short- and long-form.
• Collected once in 10 years: 1990 and 2000.• It contains information about
– population
– household characteristics
– worker characteristics
– characteristics of the Journey-to-Work (JTW).
• Data organized into 3 types of collections: – Summaries by Place of Residence
– Summaries by Place of Work
– Summaries by Journey to Work
www.transtats.bts.gov
ABOUT CTPP: Census Transportation Planning Package (continued…..)
• CTPP is organized into State and Urban Geographies– State summaries include data for
• all places of 2,500 or more population,
• the balance of the county,
• the county as a whole,
• the entire state.
– Urban Element of CTPP consists of data summaries for urbanized areas with a population of 50,000 or more.
– Summary tabulations are available for traffic analysis zones (TAZs) that have been defined by state and regional transportation agencies.
www.transtats.bts.gov
CTPP in TranStats• One-Stop Shop for CTPP
– Data– Geographical Information for Maps– Complete Documentation
www.transtats.bts.gov
CTPP 1990 in TranStatsData Available for Selective download all Geographies
including– State Part A: by Place of residence– State Part B: by Place of Work– State Part C: by Journey to Work– Urban Part 1: by Place of residence– Urban Part 2: by Place of Work– Urban Part 3: by Journey to Work
• Geographic Data available for pre-zipped file download– spatial information in form of Arc View Shape files
(.shp, .shx, and .dbf file extensions)
www.transtats.bts.gov
CTPP 1990 in TranStats (continued…….)
• Geographic Data available for pre-zipped file download– spatial information in form of Arc View Shape files (.shp, .shx, and .dbf file
extensions)– State Geographic Data for all 50 states and the District of Columbia.
• County of Residence• MCD (County subdivision code)• PMSA (Primary Metropolitan Statistical Area)• MSA/CMSA (Metropolitan Statistical Area/Consolidated Metropolitan
Statistical Area)• State.
– Urban Geographic Data for all 303 regions • CBD (Central Business District)• MSA (Metropolitan Statistical Area)• PMSA (Primary Metropolitan Statistical Area)• TAZ (Traffic Analysis Zone)• Region level.
www.transtats.bts.gov
New Highlight Features of TranStats: • CTPP 2000 in TranStats
– Data and complete Documentation available • ASCII data for pre-zipped file download• By State• Part 1: Place of Residence• Part 2: Place of Work • Part 3: Journey to work
– Selective Data Download available for• Part 1: (partial) Tabulations 1 to 46 only• Part 3 (complete) Tabulations 1 to 14
– By State and related geographies
– By MPO detail geographies
www.transtats.bts.gov
CTPP 2000 in TranStats (continued ……)
– Data organized into smaller sections/segments• due to volume and size of data
– Data volume include
Part Tabulations Total Cells (approx)
# Sections
1 120 11532 6
2 66 7608 4
3 14 230 1
Part Section Tabulations
1 1 1 to 17
1 2 18 to 29
1 3 30 to 46
1 4 47 to 73
1 5 74 to 87
1 6 88 to 120
2 1 1 to 17
2 2 18 to 29
2 3 30 to 46
2 4 47 to 66
3 1 1 to 14
www.transtats.bts.gov
ABOUT CTPP in TranStatsTranStats offers analysts several unique features: • Data download
– Selective download of variables of interest – Download the data as comma separated files “csv” format directly
to your PC for analysis– Pre-zipped data files available for large databases – Selective download by GROUPS of data– Merge Groups into one table
• Online data documentation– Profiles on each Database– Table Summaries and Profiles– Data Definitions– Code Information for Data variables
www.transtats.bts.gov
Data Download – Selective Download of Variables and GroupsExample: CTPP 2000 Part 3 data for State Summary level for Alabama State
www.transtats.bts.gov
Data Download – Selective Download of Variables and Groups (continued……)
Example: CTPP 2000 Part 3 data for State Summary level for Alabama State
Selective download Variables
Selective download Groups of variables
Select Summary levels and Tab Areas
www.transtats.bts.gov
Data Download – Selective Download of Variables and Groups (continued……)
Example: CTPP 2000 Part 3 data for State Summary level for Alabama State
1. Data Selection
2. 3.
www.transtats.bts.gov
Data Download – Selective Download of Variables and Groups (continued……)
Example: CTPP 2000 Part 3 data for State Summary level for Alabama State
1. Data Selection
2. 3.
One file for each group selected along with field description files.
www.transtats.bts.gov
Data Download – Selective Download of Variables and Groups (continued……)
Merge groups into one tableExample: CTPP 2000 Part 3 data for State Summary level for Alabama State
1. Data Selection
3. 4.2.
www.transtats.bts.gov
Data Download – Selective Download of Variables and Groups Merge groups into one table
Example: CTPP 2000 Part 3 data for State Summary level for Alabama State
1. Data Selection
2. 3.
Consolidated file for all group selected along with field description file.
www.transtats.bts.gov
Data Download – Pre-Zipped Data files for Large DataExample: CTPP 2000 Part 1 ASCII data file for Alabama
www.transtats.bts.gov
TranStats offers analysts several unique features: • Data download
– Selective download of variables of interest – Download the data as comma separated files “csv” format
directly to your PC for analysis– Pre-zipped data files available for large databases – Selective download by GROUPS of data– Merge Groups into one table
• Online data documentation– Profiles on each Database– Table Summaries and Profiles– Data Definitions – Field Contents and terms– Code Information for Data variables
www.transtats.bts.gov
Online Data Documentation – Database Profiles Example: CTPP 2000
www.transtats.bts.gov
Online Data Documentation – Table Profiles Example: CTPP 2000
www.transtats.bts.gov
Online Data Documentation – Data definitionsExample: CTPP 2000 Part 3
Group Descriptions
Column/ Cell Descriptions
Download Column Descriptions
www.transtats.bts.gov
Summary Level code Information
Online Data Documentation – Code InformationExample: CTPP 2000 Part 3: Summary Level Code Information
www.transtats.bts.gov
Performance Benefits of TranStats• Faster Performance• Quicker Downloads• On-line, User Friendly, Context sensitive HELP
– HELP icon for each screen– Download Instructions
• Context Sensitive Search Features
www.transtats.bts.gov
Contact TranStats
CTPPin
TranStatsThe One-Stop Shop of Transportation Data
www.transtats.bts.gov
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