Preventing Truck-Pedestrian and Truck-Cyclist Accidents with Truck Side Underride Guards

One of the greatest challenges a truck driver faces when driving in urban areas is keeping a proper lookout for pedestrians, bicycles and motorcycles that may be in their blind spots when they stop at stop lights or prepare to turn at intersections. While blind spot mirrors are very beneficial in reducing the blind area an 18-wheeler driver must contend with, they are not always enough. This is especially true in areas with a lot of foot traffic and bicycle traffic such as urban downtown areas or university towns. Wile it is dangerous enough when a truck changes lanes and causes a sideswipe accident with an automobile, a pedestrian or cyclist is far more likely to get run over by the vehicle’s tires as they fall and go under the trailer.

What is a Truck Side Underride Guard?

One new solution that has proven to reduce truck-cyclist accident deaths by 61%* and truck-pedestrian accident deaths by 20%* in Europe is the use of truck side underride guards. In the majority of side impact collisions between trucks and pedestrians or two-wheeled vehicles, the side of the truck is the first point of impact. The victim is then knocked under the truck and run over by the trailer tires. A truck side underride guard is a device that blocks the gap between the front and rear axles so that pedestrians and cycles cannot slide underneath the truck and get run over.

side underride guards

Types of Side Underride Guards for Trucks

Side underride guards come in two forms: panels or rails. The panels essentially creates a wall to prevent anything from getting under the truck. Rails simply block the area with a series of rails aimed at blocking things from going under. The panels have two advantages: they are more effective than rails and they are more aerodynamic—giving the added benefit of increased fuel efficiency.

Cities Requiring Truck Side Underride Guards

Several municipalities are leading the way in preventing deaths from pedestrian accidents with trucks and cyclist accidents with trucks. Cities passing ordinances to require side underride guards on various trucks currently include:

  • Boston, Massachusetts
  • Cambridge, Massachusetts
  • New York City, New York
  • Orlando, Florida
  • Portland, Oregon

Also, the University of Washington has adopted rules to require trucks driving on campus property to be fitted with side underride guards for the safety of the students.

As more local governments begin to require the use of side underride guards, it has the potential to grow into an industry standard. Several truck accident lawyers are leading the way in trying to make this a reality across the nation. Perhaps, one day side underride guards will gain enough recognition for their ability to save lives that their use will be made a nationwide requirement for all commercial motor vehicles under Federal Law.

*Source: National Transportation Library


Paul Cannon

Paul Cannon has practiced personal injury trial law since 1995. He is Board Certified in Personal Injury Trial Law by the Texas Board of Legal Specialization since 2005. He has earned recognition as a Super Lawyer by Thompson Reuters in 2017-2019, and as a Top 100 Trial Lawyer by the National Trial Lawyers Association in 2017. He is a Shareholder, trial lawyer and online marketing manager at Simmons and Fletcher, P.C. His legal writings have been published by the Texas Bar Journal,, HG Legal Resources,, and others. He has been asked to give educational talks and media interviews regarding personal injury law issues..