Speeding’s Fine—Until It’s Your Truck: Study Exposes a Double Standard

A new AAA study highlights a disconnect in how motorists view speed restrictions: some drivers support speed limiters on commercial trucks while continuing to exceed posted limits themselves. The findings come as speeding remains a major contributor to traffic fatalities in the United States.

Speeding remains a leading safety factor

According to 2024 data from the National Safety Council, alcohol-impaired driving was involved in 30% of traffic fatalities, while speeding was identified as a factor in 29% of fatal crashes.

The figures place speeding among the most significant contributing factors in roadway deaths and underscore the challenges facing efforts to reduce vehicle speeds across passenger and commercial traffic.

Public support for truck speed limiters

Speed limiters for commercial trucks have been debated for years as a potential way to reduce the severity of crashes and limit speed differences between heavy trucks and other vehicles. However, the AAA study points to a gap between motorists’ support for restricting truck speeds and their own willingness to comply with posted limits.

That inconsistency is especially relevant on roads where passenger vehicles frequently accelerate to pass trucks, only to exceed the posted speed limit while doing so. Differences in speed between vehicles remain a recurring concern for highway safety officials and trucking industry stakeholders.

Speed restrictions and travel times

Experience in other jurisdictions suggests that lower posted limits do not necessarily result in major delays for most motorists. An assessment of Wales’ 20-mph default speed limit in residential areas found that average journey times increased by approximately two minutes.

The Welsh policy has also continued to generate debate over compliance and enforcement. Reports cited in the source material describe ongoing speeding in urban areas despite the lower limit.

Enforcement and driver behavior

Speed enforcement programs can generate substantial revenue, particularly when drivers continue to exceed limits after warnings or public education campaigns. The broader safety question is whether enforcement changes driver behavior and reduces crashes.

An initial speed study in one city recorded approximately 800 violations per day before automated cameras were installed, according to police. Such data illustrates the scale of speeding that can persist even after limits are clearly posted.

The AAA findings indicate that reducing speeding will require more than restrictions on one category of vehicle. Consistent compliance by passenger-vehicle drivers, commercial operators and other road users remains central to improving roadway safety.