The first phase of the RTA plan is FY 2007 through FY 2011. The RTA is completing the fifth year of the first phase of the plan. During this period, the RTA recognizes the following major milestones to-date:
- Completion of the Twin Peaks Interchange and Road (formerly Camino de Manana) in Marana.
- Completion of the I-19 frontage road between Continental and Canoa roads in Green Valley.
- Completion of the Houghton/Old Vail intersection as part of the initial phase of the Houghton Road corridor project in Tucson.
- Completion of the first phase of Sahaurita Road, between I-19 and La Villita, in Sahuarita.
- Construction is under way or expected to be under way in 2011 on the following roadway projects: Downtown Links: I-10 to Church and 8th St. Drainage; Grant Road: Oracle/Grant intersection; Houghton Road: Irvington to Valencia and Houghton/Broadway intersection; Kolb Road connection with Sabino Canyon: Sabino Canyon/Tanque Verde intersection; La Canada: Calle Concordia to River; La Cholla: River to Ruthrauff and Magee to Tangerine; Magee Road/Cortaro Farms Road: La Canada to Mona Lisa and Mona Lisa to Thornydale; Speedway Blvd.: Camino Seco to Houghton; Tanque Verde Road: Houghton to Catalina Highway.
- Construction will begin on the following intersection projects in 2011: Oracle and Ina; Starr Pass and Mission, and Golf Links and Kolb.
- Sun Tran has expanded its evening and weekend transit service on a total of 44 routes.
- Sun Tran has added or enhanced seven express bus routes.
- New Sun Shuttle neighborhood transit service has 11 routes in operation.
- The City of Tucson received a $63 million grant in February 2010 from the U.S. Department of Transportation to help fund its portion of the cost of the modern streetcar project, a $150 million project approved by voters as part of the RTA plan.
- Establishment of the MainStreet Small Business Assistance Program, which has logged 20,000+ business outreach and ombudsman visits with 4,000+ businesses on 31 regional projects and provided confidential business consulting services to over 240 companies.
- Determination of the alignment for the RTA's largest roadway project ($167 million) on Grant Road.
- Completion (October 2009) of the first phase of a new Sun Tran Bus Storage and Maintenance Facility.