The simple guardrail GS2 is a generic product of the French state. GS2 has constituted the base of the lateral restraint systems on the French roads for more than 40 years.



GS2 is made up of a profile A rail, spacers and C100 posts spaced every 2 meters. It is different from GS4 by its spacing.

The impact made the posts bend, be detached from rails, and the guardrail forms a pocket. The vehicle is then redirected by the rail which plays the part of a belt.

A removable version of GS2 described in NF P98-410 standards exists, as well as a range of accessories : transitions, terminals.


The simple guardrail GS2 is a generic product of the French state related level N2, according to the EN 1317-2 standards. However, GS2 does not completely fulfill the criteria of the European standards because spacers of 3,2 kg are ejected during the crash-tests. Indeed the European standards, in its 2005 version, does not tolerate the ejection of objects over 2 kg.

The simple guardrail GS2 is approved by the n°88-49 ministerial circular of May 9, 1988.

Containment level : related N2

Working width : W5 (1,34m)


Installation, durability and maintenance

Concerning the installation of simple guardrail GS2, it is advisable to refer to the n°88-49 circular of approval of May 9, 1988.