400 
Secondary or Narrow Gauge Railways 
GENERAL CONDITIONS EELATING TO THE CONCESSION OF 
RAILWAYS OF LOCAL INTEREST. 
I. — Laying out the Line and Construction. 
Article 1. Laying out. — The narrow gauge railway of local interest from 
Haironville to Triancourt will pass by or near Ville-sur-Saulx, Lisle-en- 
Rigault, Robert-Espagne, Beurey, Coiivonges, Moqueville, Revigny-aux- 
Vaches, Brabant-le-Roi, Noyers, Aiizecourt, Lalieycourt, Villotte-saint- 
Louppy, Lisle-en-Barrois and Vaubecourt, and will terminate at Triancourt. 
It may follow the high roads, ordinary roads, and the departmental roads, 
on condition of leaving for ordinary wheels a free circulation of at least six 
metres (yards G-56), reckoning from the extreme external parts of the 
machines or the waggons. 
The rails will be laid on one of the sides of the road at such a distance 
from the extreme edge of the road as will be laid down in the final plans. 
Nevertheless, on passing through towns and villages where the passage 
of the railway shall have been authorised, the line will generally occupy the 
middle of the road. 
Wing rails will be laid down where the line crosses or meets roads or ways, 
and in all such other parts where the authorities may consider it necessary, 
either in the interest of public safety or for the service of adjacent 
property 
Article 4. Previous Plans. — The contractor will be allowed to copy, but 
without removing them, all the plans, levels, and estimates which may have 
previously been made at the expense of the Department 
Article 7. Cross Sections. — The width of the road between the internal 
edges of the rails is to be 1 metre (3' 3J"). Where there is a double line, 
the width of the intermediate space, measured between the external edges of 
the rails, is to be one metre and eighty centimetres (1 m. 80) 5' 135" 
The width of the side-spaces — that is to say, of the parts comprised on 
each side, between the outer edge of the rail and the limit of the ballast, is 
to be two hundred and seventy-five millimetres (Om. 275), viz., 11 inches. 
The thickness of the layer of ballast is to be at least twenty-five centi- 
metres (0 m. 25) 10 inches, and at the foot of each ballast slope a level place, 
fifty centimetres (0 m. 50) wide, 1' 8", must be reserved outside of the roads 
and ways. 
In the parts of the railway situated on the side-spaces of roads and ways, 
the width between the external edge of the side-f;pace of the road or of the 
highway and the outer edges of the rail is to be thirty centimetres (0 m. 30) 
at the least : 1 foot. 
The sleepers are to be at least one metre fifty centimetres long (1 m. 50) 
i' 11". 
The holder of the concession must make along the line all such ditches and 
waterways as may be considered necessary for draining the road and for 
running off the water. 
The dimensions of these ditches and waterways will be fixed by the 
Prefect, according to local circumstances, on the proposals made by the 
contractor. 
Article 8. Straight Sections and Curves ; Inclinesand Gradients. — Straight 
sections are to meet together by curves, the radius of which must not be less 
than 50 metres (yards 54'66). A straight section of twenty metres (yards 
21'87) at least must exist between two consecutive curves, when the latter 
are in opposite directions. 
The maximum declivity is fixed at thirty millimetres (11'81 inches). 
A horizontal section of twenty metres (yards 21'87) at least must exist 
between two consecutive declivities in opposite directions. 
