Side underride guards are a simple improvement that can make large trucks safer for pedestrians and cyclists by physically covering the cavity between the front and rear wheels of the truck. Given that nearly half of bicyclists and more than one quarter of pedestrians killed by a large truck first impact the side of a truck, TSC will continue to advocate for these safety enhancements on all interstate single unit trucks and trailers. Please watch this video from the British Safety Council (below) that illustrates the dangers of trucks’ blind spots and underscores why these side protections would reduce the instances of side impact truck crashes with pedestrians and bicyclists that result in needless fatalities and injuries.