The DC Circulator Transit Development Plan (TDP), first created in 2011, guides the future growth of the DC Circulator bus system. The DC Circulator plan identifies priority corridors for service improvement and expansion over a 10-year period. It serves as a guide for shaping the future of the system and recommends a specific course of action for new or enhanced service based on current transit needs. The original plan was finalized in March 2011 and has been updated every three years. The most recent plan was finalized in 2017.