Speed: Routes should be direct. Fare payment needs to be fast and easy. Transit needs dedicated space on the street and priority at traffic lights.
Frequency and Reliability: A network of routes that arrive at least every 15 minutes. Accurate, real-time data published in app-friendly formats. Properly-managed dispatching to keep transit evenly spaced.
Walkability and Accessibility: Concentrating transit in compact, walkable places, and making it easier to walk to transit in places where pedestrian infrastructure is lacking. Adding bus shelters, painting crosswalks, and expanding pedestrian space in the short term, and lifting restrictions on new development near transit in the long term.
from CenterLines, the e-newsletter of the National Center for Bicycling & Walking.