Michigan Primary and Secondary Road Network from 2023 TIGER/Line

U.S. Census Bureau's 2023 TIGER/Line shapefile provides geographic data for Michigan's primary and secondary roads. The dataset includes primary roads, which are divided, limited-access highways, and secondary roads, which are main arteries in the U.S., State, or County Highway systems. Each road type is identified by a specific MAF/TIGER Feature Classification Code (MTFCC).

Use Cases

• Analyze the spatial distribution of primary roads (MTFCC S1100) versus secondary roads (MTFCC S1200) across Michigan for infrastructure planning.
• Integrate road geometry with address range data from the shapefile's attributes for geocoding applications.
• Map the network of limited-access highways and main arteries to model traffic flow or plan logistics routes.
• Use the road centerline features to calculate road density or connectivity metrics for different regions of Michigan.

Strengths

• Data is sourced from the authoritative U.S. Census Bureau Master Address File/TIGER Database (MTDB), ensuring national consistency.
• Roads are classified into specific categories (primary and secondary) using standardized MAF/TIGER Feature Classification Codes (MTFCC S1100, S1200).
• The shapefile is designed to be a seamless, standalone extract for Michigan, part of a national dataset with no overlaps or gaps.

Limitations

• The dataset's specific row count, column count, and file size are unknown, making it difficult to assess its scale and structure before download.
• As a 2023 extract, the data may not reflect recent road construction, closures, or changes to the Michigan road network.
• The description does not specify the license, which is a critical consideration for commercial or redistribution use cases.

Provenance

Source

U.S. Census Bureau, Department of Commerce

Collection Method

Extracted from the Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB).

Time Range

2023

Freshness

Data was last updated on the platform on 2025-08-10, but the underlying extract is from 2023.

Geography

State of Michigan, United States.