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Marne et Seine bus network is a public bus transport network operating in the Île-de-France region, organized by the organizing authority Île-de-France Mobilités. It has been operated by the Transdev group through the company Transdev Coteaux de la Marne since August 1, 2023. The network operator will also operates the future Câble 1.
The network consists of 26 routes, including nine school routes and one express route.
On April 8, 2024, the network will follow the new regional numbering of bus lines and will take the numbers 427 to 451.
Histoire
Network development
Competition opening
Due to the opening up of public transport to competition in Île-de-France, the Marne et Seine bus network will be created on 1 August 2023, corresponding to public service delegation number 21 established by Île-de-France Mobilités. A call for tenders was therefore launched by the organizing authority in order to designate a company that will operate the network for a period of eight years. It was finally Transdev, via its subsidiary Transdev Coteaux de la Marne, which was designated during the board of directors of December 7, 2022.
The network consisted of SITUS ex-routes 2, 7, 8, 10, 21, 22, 41, 42, 51, 71, 81 and 82 while operated by CEA Transports, lines 1, 3, 4, 5, 6, 9 of SITUS and route 12 of Arlequin operated by Transdev SETRA, plus the routes B, J1, J2, K, O1, O2 and U of Transdev STRAV.
On January 1, 2024 and following the end of the outgoing contract, the Express 100 Torcy-Créteil route is taken over by Transdev Coteaux de la Marne.
Routes renaming
As of April 8, 2024, the Marne et Seine network will apply the new single regional numbering principle planned by Île-de-France Mobilités, removing duplicates and letters. The correspondence between old and new numbers is as follows: lines J1 and J2 merge into a single line 427 and lines 429 and 430 get new routes. :
Network renaiming
Old route
New route
J1 et J2
427
K
428
O1
429
O2
430
1
431
2
432
3
433
4
434
5
435
6
436
7
437
8
438
9
439
10
440
21
441
22
442
41
443
42
444
51
445
71
446
81
447
82
448
U
449
B
450
12
451
Routes
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_-_(Coll%C3%A8ge_du_Fort,_All%C3%A9e_des_Douves)_-_(Sucy-en-Brie,_FR94)_-_25-11-2024_1.jpg)
A Heuliez GX 337 on school route 444.