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Transportation & Air Quality

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H-GAC serves as the Metropolitan Planning Organization (MPO) for  transportation planning in the eight-county Houston-Galveston area. This area includes Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller counties. H-GAC's Transportation Policy Council approves the Regional Transportation Plan (RTP) and Transportation Improvement Program (TIP).

  • Regional Transportation Plan

    Regional Transportation PlanThe 2035 RTP is a long range transportation plan for Harris and the surrounding seven counties. It includes transportation projects, programs and strategies to improve mobility, and air quality in the greater Houston area. More...

  • Traffic Safety Planning Program

    Traffic Safety Planning ProgramThe Transportation Safety program focuses on improving traffic safety throughout the region by supporting planning efforts to develop policies, programs and projects that improve safety. More...

  • Air Quality Programs

    Air Quality Programs

    The H-GAC Transportation Department assists the region’s efforts to attain the federal Clean Air Act air quality standards. 

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  • SH 99 Business Terms and Condition Negotiations

    In accordance with SB 792 requirement regarding public access and transparency, H-GAC, in coordination with TxDOT and participating Counties, is providing the  SH 99 Business Terms and Conditions negotiations meeting videos and information. More...

  • Plans and Programs

    This section includes the UPWP, Regional Public Transportation Coordination, Mobility Studies and other programs. More...

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