A comprehensive express subway network, the RER, was built to complement the Métro and serve the distant suburbs, while a network of freeways was developed in the suburbs, centred on the Périphérique expressway encircling the city, completed in 1973.
A comprehensive express subway network was built to complement the Métro and serve the distant suburbs. A network of freeways was developed in the suburbs. The suburbs were centred on the Périphérique expressway. The suburbs were encircling the city. The suburbs were completed in 1973. A comprehensive express subway network was the RER.