The above show that generally bus journeys has declined since 1986 – in fact this has been declining ever since buses replaced trams in the 1930. Note however that light rail / tram usage has been steadily rising. In London they have been rising but this is likely due to the large investment due to government grants to TFL which has now been removed.
The above shows how bus kilometres are lower than they were in 1986 and falling. Gain light rail / tram mileage is increasing.