The Harris County Major Thoroughfare Plan (MTP) is a long-range planning document that serves as a guide for future thoroughfares in unincorporated Harris County. The plan offers a strategic vision to address mobility needs through a collaborative planning process as growth and development occur by defining roadway functional classifications, such as Major Thoroughfares or Collectors, based on present and future land uses, environmental constraints, and travel patterns.
Major Thoroughfares are designated by a theoretical grid of functionally spaced corridors and are gradually implemented through right-of-way dedications and roadway construction as land is developed. Collectors are typically identified as the thoroughfare network becomes more firmly established and infill development begins to occur. The MTP provides a pattern for orderly growth and serves as a guide for developers to ensure their projects contribute to the regional transportation network.