• Organization: District of Columbia
• Updated: 2025-04-29T17:34:53.000Z

The District's Department of Transportation (DDOT) maintains centerline roadway data for all roads and alleys open to traffic. In recent years, the District has improved its centerline data...

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• Organization: District of Columbia
• Updated: 2023-01-12T17:11:48.000Z

For a city, street blocks are a very common way in which to organize and relate asset types such as bicycle lanes. The bicycle lane layer is an extract of its parent layer Roadway Blocks. The...

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• Organization: District of Columbia
• Updated: 2026-02-15T23:30:43.000Z

This point layer was created from the GTFS data feeds from the Washington D.C. Metropolitan Area Transportation Authority (WMATA) to represent the new WMATA bus transit stops for the Better Bus...

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• Organization: District of Columbia
• Updated: 2026-02-15T23:30:43.000Z

This line layer was created from the GTFS data feeds from the Washington D.C. Metropolitan Area Transportation Authority (WMATA) to represent the new WMATA bus transit routes for the Better Bus...

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• Organization: Montgomery County of Maryland
• Updated: 2026-01-29

Single-line representation of County roadways with hundred-blocks & various service area IDs

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• Organization: District of Columbia
• Updated: 2026-02-14T08:07:45.000Z

SubBlock represent the near-full extent of our centerline network (only driveways are excluded). SubBlock is the finest grained, 'base' segments from which all other segmentation patterns can be...

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• Organization: City of San Francisco
• Updated: 2024-03-13

Deprecation warning (November 2021): This dataset was part of a program that is now inactive. As such, we no longer actively maintain it but it remains present for historical reference. A....

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• Organization: City of Austin
• Updated: 2026-01-29

This dataset contains records of work completed and in-progress work from June 2018 to present for the purpose of tracking the installation and maintenance of roadway markings across the City of...

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• Organization: State of Maryland
• Updated: 2025-05-05

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The centerline is a data sharing process between the State Highway Administration (SHA) and local...

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• Organization: State of Maryland
• Updated: 2025-05-05

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The centerline is a data sharing process between the State Highway Administration (SHA) and local...

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• Organization: State of Maryland
• Updated: 2025-05-05

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The centerline is a data sharing process between the State Highway Administration (SHA) and local...

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• Organization: State of Maryland
• Updated: 2025-05-05

This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. The centerline is a data sharing process between the State Highway Administration (SHA) and local...

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• Organization: Department of Transportation
• Updated: 2026-01-20

The main dataset is a 130 MB file of trajectory data (I90_94_moving_final.csv) that contains position, speed, and acceleration data for small and large automated (L2) and non-automated vehicles on...

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• Organization: Department of Transportation
• Updated: 2026-01-20

The main dataset is a 9 MB file of trajectory data (I294_L2_final.csv) that contains position, speed, and acceleration data for small and large automated (L2) and non-automated vehicles on a...

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