Provides rides for people living downtown on low incomes and those who access health and human services in the downtown Seattle area. No card or other identification is needed to ride.   The rides are available via a 20-person circulator bus.   T wo buses stop at one of seven stops on the 4½ mile route about every 30 minutes. The stops were selected to maximize access to social service agencies in the downtown area.   Stop #1: 9th & Alder   Stop #2: 4th & Yesler (adverse weather stop is 1st and Yesler)   Stop #3: 1st & Marion   Stop #4: 1st & Pine   Stop #5: 1st & Bell Stop #6: 9th & Virginia   Stop #7: Boren & Seneca