1 Luxembourg to Châtelet : 1977
The first move to integrate the Ligne de Sceaux into a much grander plan for Paris' transport was roi extend under the Seine to a temporary terminus at Châtelet les Halles. This was to become a huge multi-line interchange which, for the untrained passenger, is somewhat unnerving.
The station, all underground, brought togthher two "traditional" Métro stations ...
Châtelet formely a small Château
Les Halles former fruit and veg market
... and linked them with the RER system, the Paris equivalent of Crossrail.
The interchange has grown over the years and now includes Three RER networks and five Métro lines.
2 Châtelet to Gare du Nord : 1981
In 1981, the Ligne de Sceaux was furtherextended to Gare du Nord where it made end-on connection with the rest of RER B.
The old turn-back runnels at Luxembourg reamined out of use until 2001 when they were developed as a two storey underground car park.
But the Ligne de Sceaux remains in the ownership of RATP (successors to CMP) and the northern branches were very much SNCF, French national rail. SNCF is electrified at 25,000 volts AC; RATP at 1500 volts DC.
So RER line B is essentially an example of joint operation. Indeed, for many years the trains ran "through" but SCNF staff handed over to RATP staff at Gare di Nord.
The last Z train ran in 1987 but several "heritage" runs were subsequently made for enthusiastsl this in 1996.
3 St Michel Notre Dame : 1988
A new line B station BLUE was opened on the south bank of the Seine to give interchange with RER line C YELLOW and lines 10 DRAB and 4 PURPLE of the Métro.
Line 10's Cluny La Soirbonne station was re-opened as part of this scheme. RER B and Métro 4 are in "proper tunnel ...
4 Orlyval : 1994
In 1994 a link between Antopny Station and Orly Airport was added, this being the fully automatic Orlyval service.
Not only is there no driver, but trains reverse automatically at Orly Ouest which makes the experience doubly spooky for those who are not expecting it!
5 Up to Date : 2016
The service on ligne B today is truly impressive. Monsieur Arnoux, originator of the first Ligne de Sceaux would not believe what his humble efforts had become!
ILOT every 15 minutes Robinson - Sceaux - Paris - Mitry-Claye
ERIC every 15 minutes Massy Palaiseau - Paris and fast to CDG Airport
EPAF every 15 minutes St Remy - Paris and stopping to CDG Airport
And the network is always busy!
Last Sunday's Quiz answers will follow on Sunday.
Next Blake & Mortimer blog : Saturday 15th Oct
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