The Transportation subseries includes the agendas and minutes for the Seattle Bicycle Advisory Board for 1972 to 1985. The Board advised the City on a variety of issues, including bicycle safety, bike access on the West Seattle Bridge, and other bridges and ways for the City to encourage bicycle use. Other transportation-related topics are included, such as taxicabs, and there are three folders relating to planning for the West Seattle Bridge; these date from 1979 and 1983.