Rush-Hour Buses; Catching them before Light's Out

Maybe it was because my brother talked about them but as a youngster I always believed there was such a thing as 'the rush hour bus' time-expired veterans. There was a little truth in it too in places like Manchester but in places like Switzerland it became a reality and visiting there in the dark winter months I was just about lucky to get this late afternoon view of one such beast, an articulated Saurer starting a peak hour only service in Zurich in about 1990 when the local marques like this, Berna and FBW were fast disappearing. By the time it reached the terminus poor light was setting in.