Access Across America: Transit 2021 Data

Loading...

Persistent link to this item

https://doi.org/10.13020/cxkh-at83
https://hdl.handle.net/11299/256251

Statistics

View Statistics

Keywords

Accessibility

Accessibility Observatory

Spatial Data

Bicycle

Transportation

Networks

Connectivity

Land Use

Collection period

2021-01-15
2021-12-31

Date completed

2023-07-15

Date updated

Time period coverage

Geographic coverage

Source information

Journal Title

Journal ISSN

Volume Title

Title

Access Across America: Transit 2021 Data

Published Date

2023-08-31

Authors

Owen, Andrew

Liu, Shirley Shiqin

Jain, Saumya

Hockert, Matthew

Lind, Eric

Group

University of Minnesota Center for Transportation Studies, Accessibility Observatory

Author Contact

Owen, Andrew
owenx148@umn.edu

Type

Dataset
Spatial Data

Abstract

These data were created as part of a study that examined the accessibility to jobs by transit across the United States. It is the most detailed evaluation to date of access to jobs by transit, and it allows for a direct comparison of the transit accessibility performance of America's metropolitan areas. These data are part of a longitudinal study. Transit data for additional years can be found in the Accessibility Observatory Data collection: http://hdl.handle.net/11299/200592

Description

This dataset provides a summary of the worker-weighted access by different census geography levels and travel times for the state. The worker-weighted access here represents the average number of jobs a person can reach from a specific census area within a given travel time threshold. The travel time threshold are in integer seconds, at intervals from 300 (5 min) to 3600 (1 hour). For transit accessibility, the match between schedule and departure time greatly influences what is reachable. We use available published transit schedules for a given travel day and average across each minute from 7am to 9am to give an average access, removing some of the variation due to mismatch of departure. Transit access travel times include walking to and from stops, as well as waiting. Where no applicable transit service is available, the accessibility metric represents jobs available by walking. Census levels included in this dataset are: Block, Block Group, Census Tract, County, and State. The file-naming system for the data files is [state]_[statecode]_[mode]_[census_level]_[year].csv: These files contain the census level data by mode, year. **Important Note: Due to its large size, the 'Block' level data file should not be opened outside of a person's coding platform. Attempting to open this file in Excel or a similar spreadsheet program would cut off a significant amount of data points.** Data fields included in the data are: 1. mode: the type of travel modes, one of auto, bike, or transit; 2. year: National Accessibility Evaluation data year, the year for which this dataset is relevant; 3. parent_area: the ID of the containing geography within which the data averages are calculated; 4. summary_level: the level of geography at which averages are calculated - one of state, county, census tract, block group, or block; 5. geoid: the ID of the particular census geography for which the data averages are calculated; 6. threshold: the travel time threshold in seconds, ranging from 300 to 3600 seconds; 7. weighted_average: the average number of jobs a person can reach from a given census area within the travel time threshold for a specific mode

Referenced by

Related to

Accessibility Observatory Data:
http://hdl.handle.net/11299/200592

Replaces

Replaced by

License

Attribution 3.0 United States
http://creativecommons.org/licenses/by/3.0/us/

Publisher

Collections

Data Repository for U of M (DRUM)
Accessibility Observatory Data

Funding information

Federal Highway Administration, Transportation Pooled Fund program, TPF-5(455) to MnDOT

item.page.sponsorshipfunderid

item.page.sponsorshipfundingagency

item.page.sponsorshipgrant

Previously Published Citation

Other identifiers

Suggested citation

Owen, Andrew; Liu, Shirley Shiqin; Jain, Saumya; Hockert, Matthew; Lind, Eric. (2023). Access Across America: Transit 2021 Data. Retrieved from the Data Repository for the University of Minnesota (DRUM), https://doi.org/10.13020/cxkh-at83.

Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.