year

route(s)

today part of route

O

1939

B

Bezirksgebäude - Limmatplatz - Bucheggplatz

32

O

1939

depot

depot Zweierstr.

x

O

1942

A

Albisriederplatz - Spiriplatz

33

O

1946

C

Klusplatz - Witikon

34

O

1948

B

Bezirksgebäude - Goldbrunnenplatz

32

O

1948 (?)

A

Spiriplatz - Kirche Fluntern

32

O

1948

depot

depot Fluntern (former tram depot)

x

O

1951

depot

depot Elizabethenstr (shared tram depot)

x

O

1952

B

Goldbrunnenplatz - Utohof

32

R

1954

A, B, C

(routes A, B and C renumbered 33, 32 and 34 respectively)

32, 33, 34

T

1956

31

Burgwies - Hegibachplatz - Hauptbahnhof - Hardplatz (previously tram route 1)

(part x)

O

1956

31

Hardplatz - Herdernstr.

O

1956

(s)

Hegibachplatz - Klusplatz (Semperstr.), connects previously isolated route 34 to rest of network

(s)

O

1957

31

Herdernstr. - Farbhof

T

1958

31

Farbhof - Schlieren (formerly part of tram route 2)

D

1965

31

Bahnhofplatz avoiding line via Usteristr. - Werdmühlestr. - Waisenhausstr.

x

C

1967

33

route 33 (Kirche Fluntern - Albisriederplatz) dieselised (construction of Hardbrücke)

C

1967

depot

depot Fluntern closed

x

O

1969

depot

depot Herdernstr.

C

1969

depot

no more trolleybuses in depot Elizabethenstr.

x

D

1971

31

(reverts to original itinerary at Bahnhofplatz - see 1965)

O

1971

34

Witikon - Loorenstr.

1974

32

Helvatiaplatz - Militär-Langstr. converted to single lane trolleybus lane used by trolleybuses in both directions and protected by signal block

O

1974

73

Albisriederplatz - Morgental

33

O

1975

74

Bucheggplatz - Holzerhurd (?)

32

O

1975

33

Kirche Fluntern - Albisriederplatz (reversion of 1967 dieselisation)

R

1975

33, 73

(routes 33 and 73 joined)

33

C

1979

31

Burgwies - Hegibachplatz withdrawn (wires remain in-situ until early 1990s)

x

O

1994

72

Milchbuck - Triemli

O

1995

46

Hauptbahnhof - Rütihof

O

1998

33

Kirche Fluntern - Tiefenbrunnen

R

1999

32, 74

(routes 32 and 74 joined)

32

D

2007

(s)

Hegibachplatz - Klusplatz replaced by direct connection at Klusplatz.

(s)