What is PD CEN/TS 17342 - Road restraint systems about?  
PD CEN/TS 17342 is a standard that discusses road restraint systems. It details best industry practices to establish efficient accident and disaster control measures.
PD CEN/TS 17342 specifies requirements for the impact performance of systems designed for the reduction of impact severity for powered two-wheeler (PTW) riders impacting safety barriers whilst sliding along the ground, having fallen from their PTW vehicle. The protection systems concerned are those fitted to barriers or barriers that have an inherent PTW rider protection or risk reduction capability.
Who is PD CEN/TS 17342 - Road restraint systems for? 
PD CEN/TS 17342 on motorcycle road restraint systems is useful for: 
- Manufacturers and designers of road restraint systems
- Manufacturers and designers of safety barriers
- Automotive industry
- Local authorities
- Road safety departments
Why should you use PD CEN/TS 17342 - Road restraint systems?  
In order to improve safety, the design of roads may require the installation of road restraint systems, which are intended to contain and redirect errant vehicles safely for the benefit of the occupants and other road users, or pedestrian parapets designed to restrain and guide pedestrians and other road users not using vehicles, on sections of road and at particular locations defined by the national or local authorities. 
PD CEN/TS 17342 defines performance classes taking into account rider speed classes, impact severity, and the working width of the system with respect to rider impacts.
Thus, it can be essential to fit a barrier with a specialized PTW rider protection system in compliance with PD CEN/TS 17342 so as to minimize the risk level of physical injury to a rider resulting from an impact.
You can establish a safety barrier that reduces the impact of out-of-control automobiles leaving the road, by protecting people and roadside objects, thereby reducing the severity and consequences for those involved in the incident.
