The Best What Are Vulnerable Road Users References. Throughout this plan, the phrase “people walking, biking, or rolling” is used to generally refer to vulnerable road users. Vulnerable road users (vru) is an umbrella term used to refer to a section of road users who are more susceptible to accidents and injuries on the road than the average road.

Throughout this plan, the phrase “people walking, biking, or rolling” is used to generally refer to vulnerable road users. A vulnerable road user refers to those who have less crash protection than occupants of motor vehicles and therefore have a higher risk of being injured or killed in a road crash. Vulnerable road users (vru) is an umbrella term used to refer to a section of road users who are more susceptible to accidents and injuries on the road than the average road.