2 minute tram service interval Budapest, 6 minutes Birmingham

Above, yellow is one Budapest tram timetable. Note how he service frequency is increased during school holidays. In UK trams are generally more frequent than trams e.g. 6 minutes in Birmingham is typical, whereas buses are generally around 20 minutes.  In pre-war London trams there was no timetable because a tram was always in site.

 

Below is a bus timetable, which generally has longer service intervals.