Vallée de Montmorency bus network

Vallée de Montmorency (formely: Valmy) is a French bus network run by Île-de-France Mobilités and Plaine Vallée structure. The network is operated by Transdev via his society Transdev Valmy since August 1, 2021.

It consists of 18 lines (including 13 regular lines, 1 school line, 1 DRT and 2 night lines) which mainly serve the communities of the vallée de Montmorency.

The network was created in 1950s as Valmy, initialism using the name of vallée de Montmorency. It mainly served the municipalities of Andilly, Enghien-les-Bains, Montmorency, Saint-Gratien, Sarcelles and Soisy-sous-Montmorency.

In June 1999, a project to create a line 39 aimed at connecting the Pierrefitte - Stains station to l'Hôtel de Ville de Montmagny was abandonned.^[1] The planned route was finally taken over on January 2000 by shuttles from the RATP ex-line 254.^[2]

On August 30, 2010, the Sunday lines were restructured. The red line was integrated into line 14, the yellow line into line 15A, the green line into line 15M, and the blue line into line 110.^{[N 1][3]}

On November 3, 2014, line 14 saw its offer reinforced all week following the increase in the line's ridership.^[4]

When the Tramway Line T5 opened on July 29, 2013, line 37 was extended to Les Cholettes via Groslay station and Sarcelles - ZAC des Monts.^[5]

In order to support the commissioning of the Tramway Line T8, five lines of the network saw their commercial service affected.^[4][6]

As part of the operation called Grand Paris des Buses led by Île-de-France Mobilités, three lines of the network benefited from reinforcement from August 27, 2018.^[7][8]

Following the opening of public transport to competition in Île-de-France, the Valmy bus network became Vallée de Montmorency on August 1, 2021, corresponding to public service delegation number 5 established by Île-de-France Mobilités. An invitation to tender was therefore launched by the organizing authority in order to designate a company which will succeed the operation of Transdev Transports du Val-d'Oise (Transdev TVO) for a period of seven years. It is finally Transdev, via his society Transdev Valmy, who was designated during the board of directors on February 11, 2021.^[9] At the time of its opening to competition, the network consisted of lines 10, 11, 12, 13, 14, 15, 16, 33 (SoisyBus) and 37 of the former Valmy bus network, as well as lines 30-13, 30-39, 38-02, 38-03 and 38-05 of the former Valbus and Parisis bus networks operated by Les Cars Rose and Les Cars Lacroix.

On August 22, 2022, originally scheduled on March 7, 2022,^[10] lines 12 and 13 are modified and lines 17 and 27 are created. Line 17 took over the Écouen shuttle from line 13 as well as the Dobus, urban service from Domont while line 27 connects the Eaubonne hospital to the Garges - Sarcelles station, thus replacing part of the section of line 95.02 of the Busval d'Oise network. Finally, two Bus Soirée lines are created respectively in Domont and Écouen.

Since August 28, 2023, the network is one of the first to apply the new principle of unique regional numbering planned by Île-de-France Mobilités, removing duplicates.^[11] The correspondence between old and new numbers is as follows:^[11]

The network is also completed by two night lines named Soirée Domont and Soirée Écouen - Ézanville.

Vallée de Montmorency also operate a Demand-responsive transport (DRT, also called TàD or Transport à la demande by Île-de-France Mobilités) line named TAD Eaubonne Domont.