During this meeting, details and explanations were provided on this massive project, providing the first answers to the many questions it raises.
What saves time?
The regeneration of this track will not save time between Nevers and Dijon. “The goal is for the current time to stay, not for it to be faster,” insists Michel Neugnot. However, this is one of the wishes of the FNAUT and the Collectif Nevers-Dijon in two hours. Jérôme Grand adds: “to save time between Nevers and Dijon, we should remove the stops, currently there are eleven, or remove the level crossings, or put straighter tracks where there are curves. This regeneration is a prerequisite. You need a good route to, in a second step, improve your travel time. »
Why isn’t work done at night?
Many wonder why they are not done at night? SNCF Réseau replies: “Works carried out during the day cost 30% less, i.e. a saving of approximately 40 million euros on this programme. »
Why seven months?
The works between Chagny and Montchanin will be carried out with a kilometer-long rapid suite (factory train). “Its use requires the closure of both lanes of traffic. One on which we remove everything and the other to recover what is removed,” explains Jérôme Grand. “Today there is no solution to go faster. »
prize Started in July, the construction site of the SNCF Nevers-Dijon line will last 9 months
Replacement transport
They will be done by bus. As Bruno Delatorre, director of the Bourgogne Ouest line for SNCF Réseau explained, “we are working with the Region on the needs to be implemented. A public tender has been launched and a transport plan should be presented at the end of the first quarter of 2023″. Cédric Journeau, president of the FNAUT of Burgundy-Franche-Comté, is delighted that his association is involved in this consultation. The need to carry passengers on this line is 60 buses per day.
Why does it work?
SNCF Réseau explains it: the average age of track components is 30 years between Nevers and Montchanin and 50 years between Montchanin and Chagny. Risk of severe delays which will bring traffic down to 30 or 40 km/h instead of the current 80-140 km/h, i.e. an increase in journey time of 15-20 minutes and a traffic disruption for safety reasons for the Etang -sur-Arroux railway bridge. This will be replaced between February and December 2023. Cost: €8.7 million. This specific project contributes to the maintenance of the line.
Traffic disruptions
SNCF Réseau specifies the traffic interruptions on this Nevers/Dijon axis, the moment of the regeneration of the tracks and the various evolutions.
Section of Nevers-Banlay station. The line will be closed to rail traffic from Monday 10 July 2023 to Saturday 2 September 2023 inclusive.
Section Le Banlay-Montchanin. The line will be closed to all traffic from Monday 10 July 2023 to Friday 22 December 2023 inclusive. It is possible that some trains will be put back into service at the end of this phase.
Montchanin-Chagny section. It is on this portion of 25 kilometers in one direction and then 25 in the other, that the works will be most substantial, from Monday 10 July 2023 to Friday 16 February 2024 inclusive, hence the strong impact on the whole of this Line Nevers/ Dijon. A share that alone mobilizes 68 million euros out of a total cost of the construction site of 137 million euros. The SNCF network specifically specifies, in its desire for sustainable development and circular economy, that 35,000 tonnes of crushed stone from the Paris/Lyon high-speed line, or 30% of the site, will be recovered for this site. In addition, 5,000 tonnes of rails (or 100 kilometres), recycled in the steel mill, will be reused. An axis on which standardization work will take place in the stations of Cheilly-les-Maranges, Santenay and Saint-Léger-sur-Dheune.
Circular economy
On this section, 100,000 tonnes of ballast, 100 kilometers of rails and 85,000 sleepers will be renewed. Among other things, the hydraulic works and the restoration of service roads are included in the global budget.
During these works on the various sections, the level crossings will be closed according to the progress of the works. The road diversions will be discussed with local authorities at the end of January 2023.
Some numbers
137 : in million euros, amount of investments made, of which 62 co-financed by the State (35 million euros) and the Bourgogne-Franche-Comté Region (27 million euros) and 75 by SNCF Réseau.
121 : total kilometers of track renewed.
104,000 : number of renewed sleepers.
168,000 : tons of ballast that will be renewed.
550 : number of people mobilized during the duration of the project.
Denis Chaumereuil
