Safety levels
Safety levels of Ruukki´s median barrier according to Standard EN 1317-2:
Rail type: C33.5/150/180/150/3.5x4
- Post spacing: 2 m
- Class: H1 (high safety level)
- Working width: W5
Standard EN 1317-2 divides the crash safety of motor traffic into four classes:
- Low safety level T1/T2/T3
- Normal safety level N1/N2
- High safety level H1/H2/H3
- Very high safety level H4a/H4b
The standard sets requirements for tests conducted on each safety level.
Assembly
Median barrier components and assembly
|
Position and designation1) |
Dimensions |
Standard |
A |
B |
C |
D |
| 1 |
Rail |
L=12 m |
EN 10162 |
1 |
|
2 |
1 |
| 2 |
Post 2) |
L=1.5 m |
EN 10162 |
|
1 |
|
|
| 3 |
Fastening piece |
L=50 mm |
|
|
1 |
|
|
| 4 |
Tie plate |
L=240 mm |
EN 10162 |
|
|
1 |
1 |
| 5 |
Bent section 3) |
L=2.0 m |
|
|
|
|
1 |
| 6 |
End tie piece 4) |
L=120 mm |
|
1 |
|
|
|
| 7 |
End anchor post 4) |
HEA 180, L = 800 mm |
EN 10034 |
1 |
|
|
|
| 8 |
End washer 4) |
120x120x20 |
|
1 |
|
|
|
| 9 |
Ball-headed hex screw, hex nut, 2xwasher |
M12x35–8.8 |
-/DIN934/125 2 |
|
2 |
|
|
| 10 |
Hex screw, hex nut, washer |
M10x25–4.6 |
DIN933/934/125 |
|
1 |
|
|
| 11 |
Ball-headed hex screw, flat hex nut, washer |
M16x30–8.8 |
-/DIN934/125 |
|
|
16 |
16 |
| 12 |
Hex screw, hex nut, washer |
M14x30–8.8 |
DIN933/934/125 |
|
|
4 |
4 |
| 13 |
Hex screw, hex nut 4) |
M36x250 |
DIN933/934 |
1 |
|
|
|
1) Corresponding type drawings of Finnish Transport Agency: Ty3/61 and Ty3/62.
2) L = 1.5 m can be used instead of 1.95 m when the pavement is more than 40 mm. When installed in a concrete or steel sleeve L ≥ 1.15 m depending on sleeve depth
3) Cut, bent and welded to an angle of 4°.
4) Not stocked, availability to be checked separately.
Durability
Safety barriers, accessories and fasteners are delivered hot dip galvanised. The thickness of Ruukki’s safety barriers’ zinc layer exceeds the requirements of Standard EN ISO 1461 and fulfils those set in the type drawings of the Finnish Transport Agency. Ruukki’s safety barriers have proven their durability over several decades along traffic lanes treated with de-icing salt.
A hot dip galvanised surface can be painted to make it the desired colour and to extend its service life. Standard PSK 2702 and the SILKO 2.354 repair guideline of the Finnish Transport Agency provide detailed instructions for the painting of hot dip galvanised objects.
Ruukki’s median barrier C33.5/150/180/150/3.5x4 also meets the requirements of the most demanding Class 4 for snow-plough resistance set by the Finnish Transport Agency.
Order & delivery
Ruukki’s median rail delivery may consist of an installation-ready rail system or a more limited set of components. A rail system includes rails and rail posts, as well as starting and end pieces and fasteners.
Rails and posts are manufactured on a continuous roll forming line, which ensures their high dimensional accuracy and allows for long section lengths.