Everyone, including people who hadn’t used a bus or train in the previous 12 months, was asked how satisfied they are with the reliability and frequency of services.
Gofynnwyd i bawb, gan gynnwys y bobl nad oeddent wedi defnyddio bws neu drên yn ystod y 12 mis blaenorol, pa mor fodlon oeddent â dibynadwyedd ac amlder gwasanaethau.