The creation of reserved lanes (VROP) on the Ile-de-France national road network was planned as part of the city of Paris’ bid to host the global sporting event in the summer of 2024. The purpose of these lanes was to guarantee a reliable journey time between the various competition sites for accredited vehicles.

They are arranged as left- or right-hand lanes on existing motorways and national roads serving the main sites. Most of these dedicated lanes are temporary, i.e., they are set up during sports competitions. The reserved lanes on the A1 (in both directions of traffic) and the A13 (towards Paris) are known as ‘heritage’ lanes and, since 3 March 2025, have become reserved lanes for carpooling and public transport.

The Ingerop-CDVIA-Citizing consortium is the holder of the singleaward framework agreement aimed, in particular, at building and delivering these lanes within the allotted time. The consortium was entrusted with the complete design and construction supervision.

As part of the road tunnel Safety measures, in accordance with Circular 2000-63, DIRIF has entrusted INGEROP for design and work supervision for the safety of the Champigny sur Marne cut-and-cover tunnel. This mission follows the definition of the improvement programme and elements of the Safety Dossier in 2003-2004.

CHARACTERISTICS

• Urban tunnel with 2 unidirectional tubes of 750 m and 780 m, with 4 lanes and high traffic, on the A4 motorway
• Works with maintenance of the operation
• Co-activity with 4 other transverse construction management on the site (supervision overhaul, DAI video and physical closures, self-evacuation, radio, etc.)

Civil engineering works:

• Emergency exits and new safety and fire niches creation
• Facilities for disabled people
• N2 or N3 fire protection of structures and networks
• Redevelopment of technical rooms and ventilation plants

Equipment works:

• Resumption of High Voltage (HTA) distribution (new HTA link between substations), refurbishment of technical premises with modification of HTA switchboards and securing of Low Voltage.
• Renovation of the ventilation system (longitudinal system with accelerators in the south and semi-crosswise in the north)
• Complete overhaul of the lighting installations in the 2 tubes and installation of beaconing studs
• Redesign of the fire network

SIRIUS network routing

Complete overhaul of the Centralised Control Management (CTM), interfacing with the general overhaul programme for the supervision of the 22 Ile-de-France tunnels