NCHRP 350 Test Parameters
Test Parameters
Tractor Tanker Trailer
Tractor Van Trailer
Single Unit Van Truck
Pickup Truck
Car
Pickup Truck
Car
36,000T
36,000V
8,000
2,000
820
2,000
820
20
25
20
25
15
15
15
6-12
5-12
4-12
3-11
3-10
2-11
2-10
70
70
100
100
80
80
80
Test
Impact Speed km/h
Impact Angle
Total Vehicle Mass
Type of Vehicle
Acceptance Test
Containment Levels
Test 2-10 and 2-11
Test 3-10 and 3-11
Test 3-10, 3-11 and 4-12
TL5
Test 3-10, 3-11 and 6-12
TL2
TL3
TL4
TL6
Test Requirements
For a presentation on EN 1317 or
EN 12767 contact
sales@v-and-g.co.uk
Test 3-10, 3-11 and 5-12
Bridge Parapets are designed to provide levels of containment that limit penetration of errant vehicles, and to protect others in the vicinity by redirecting vehicles on to a path as close as possible to the line of the parapet.
NCHRP 350 covers all Vehicle Restraint Systems including Safety Fences. NCHRP 350 is a performance based standard. This basically means that the standard is focused on the performance of a product. The major difference between the American and European standard is the vehicle mass and impact angle. For the most common containment level which is based on the highest vehicle populatoin ie the car, NCHRP 350 uses a larger vehicle with a greater impact angle and therefore should be considered where there is a high percentage of larger cars or faster speeds.
