SDRIF 2012- Paris. Mobility

The mobility policies are among the “hard” elements in most of the Plan that can be compared to the SDRIF. It is a capital investment issue, that usually drains much of the funds allocated to the new territorial model (not having found a precise financial programme for SDRIF this is still hard to judge here), and the public actors are, at least in Europe, highly implicated. It is also a range of policies with direct impacts on territorial competitivity, but also on environment, due to the impact of linear infrastructure and greenhouse gas emissions.

Paul Delouvrier’s Schema Directeur from the 1960s introduced as mobility landmark the RER (regional express network of high frequency trains), as well as a Peripherique inner beltway that was already being built and the radial freeways, as well as the A-86 outter beltway proposal. 1994’s SDRIF included the Francilienne external beltway and improvements to RER, as well as the idea for a transversal public transit connection between suburbs.

2012’s project introduces as new ideas:

  • A more defined project for the transversal links between suburbs, mainly on the inner ones, with a 200 km Grand Paris Express automatic subway (today being debated, as the State should decide or not to allocate 1 billion euros to the project). It is the star investment, showing that Grand Paris is not just the theme for an architecture competition, but a defined plan.
  • Tram-train lines contributing to transversal links
  • Traffic calming on the Peripherique and the initial sections of the radial freeways, as well as a special treatment for metropolitan boulevads and avenues. Even if there are projects for some freeway links (for instance, Roissy Beltway), they are not the main issue. The multimodal use of the freeways, introducing high occupancy and transit reserved lanes (as on Madrid’s A6), is presented as the new normal. Traffic calming should also allow new uses in the current no-build zone around freeways, allowing bus stations and other facilities. It is one of the most relevant ideas of the SDRIF in environmental terms, as it would reduce greenhouse gas emissions

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