The Six-Year Improvement Plan (SYIP), or Six-Year Plan, includes funding for public transportation facilities, commuter and public transportation programs, and all interstate and primary highway projects that are being studied, designed, and constructed throughout Virginia over six fiscal years. Fiscal years start on July 1 and end on June 30.

The Commonwealth Transportation Board (CTB) updates the program each year as priorities are revised, project schedules and costs change, and study results are known.

The current program- the FY2006-2011 SYIP- allocated $7 billion to highway construction projects and other transportation programs managed by VDOT, $1.5 billion to rail and public transportation projects statewide through DRPT, and $900 million planned for the Dulles Corridor Metrorail Project, a DRPT-managed project.

All projects in the SYIP that are eligible for federal funding will be included in the Statewide Transportation Improvement Plan (STIP), which documents how Virginia will obligate its share of federal funds.

The next update on the program will be for the next six fiscal years, beginning on July 1, 2006.