Stratégique route
The route stratégique was a road network of 38 roads in western France that existed from 1833 to 1862. They were created to speed up military relocations. Due to their importance, some of these were converted into national roads and given numbers based on national roads in their vicinity:
- Route national 23bis
- Route national 137bis
- Route national 138th
- Route national 148bis
- Route national 149bis
- Route national 159bis
- Route national 160bis
- Route national 161bis
- Route national 162bis
- Route national 163bis
- Route national 178bis
Web links
- Route stratégique française on WikiSara (French)