Trolleybuses in Neuchâtel

As of 2019 there are three trolleybus routes in Neuchâtel (route 107 is a radial route; the other two routes are cross-city routes):

The individual sections of trolleybus line in Neuchâtel went into service as follows:^[4]

Note: Opening dates above indicate the start of trolleybus service, where known. In cases of new trolleybus routes converted from tram lines, trams were replaced by a temporary motorbus service while the overhead wiring was modified, and thus the first day of trolleybus service did not immediately follow the last day of tram service.

Opened in 1949, route 4 included interurban trolleybus service to Cernier, in the Val-de-Ruz, replacing a tramway as far as Valangin and motorbus service of the Val-de-Ruz transport company (VR) between there and Cernier. Service was jointly operated by TN and by VR,^[4] which operated the Val-de-Ruz trolleybus system [de] (opened in 1948), with TN trolleybuses reaching Cernier and VR trolleybuses reaching Place Pury in Neuchâtel. However, most journeys on TN route 4 operated only between Neuchâtel and Valangin. Trolleybus route 4 and VR's Valangin–Cernier section both closed on 2 November 1969, and that was the final day of trolleybus service between the Val-de-Ruz and Neuchâtel.^[4]

Routes 1 (city centre – St. Blaise) and 2 (city centre – Serrières) were through-routed for many years, from the opening of route 1 in 1957 until 1981, with trolleybuses displaying route number "1" when bound for St. Blaise and "2" when bound for Serrières.^[6] They were separated in 1981, but re-connected in 1985, and the full route became route 1 at the latter date,^[6] with route "2" ceasing to exist (it was reintroduced in May 1994).

On 8 July 1991, route 1 replaced route 3, making route 1 Cormondrèche–Place Pury–St. Blaise–Marin, and the Place Pury to Serrières section was taken over by route 7.^[8] On the same date, route 8 was extended to Place Pury.^[8] Routes 7 and 8 had both terminated on Rue St. Maurice and run inbound via that street and outbound via Rue du Bassin and Rue St. Honoré,^[4] and the July 1991 service changes brought to an end the regular operation of trolleybuses along Rue St. Maurice and Rue du Bassin, but the wiring remained in place until at least 2002.

On 29 May 1994, route 7 reverted to operating Place Pury–Hauterive, and the designation route "2" was revived for the Place Pury–Serrières section. At the opposite end of route 7, the trolleybus wires were extended from Hauterive to Marin, for access to a new depot opening there in September 1994, and starting on 3 October 1994 three route 7 trips per day operated through to or from Marin.^[5] In June 1996, route 7 began serving Marin at all times and days except evenings and Sundays, but with half of its scheduled non-rush-hours trips still terminating at Hauterive.^[9]

Route 6 was converted to diesel buses on 19 March 2001 and discontinued entirely in June 2001, with realignment of the roadway in front of the railway station following.^[10]

The routes were renumbered 101, 102, 107, and 108 in December 2013.^[11] One year later, on 14 December 2014, routes 102 and 108 – which had already been through-routed for several years – were combined as a single route, 102.^[12][13]

• List of trolleybus systems in Switzerland
• Trams in Neuchâtel