Accidental Vehicle Impacts Are a Design Problem

 

Accidental Vehicle Impacts Are a Design Problem

Vehicle-into-building incidents are often misunderstood as rare or intentional events. In reality, many of these incidents occur during routine, low-speed activities and are the result of everyday human or medical factors.

Common causes include pedal misapplication, sudden medical emergencies, and loss of vehicle control during parking maneuvers. While these events may be unpredictable in timing, their outcomes are far from uncommon.

A Widespread and Documented Risk

Data referenced by the Storefront Safety Council indicates that accidental vehicle impacts occur approximately 100 times per day across the United States. On an annual basis, these incidents contribute to:

  • An estimated 2,600 fatalities

  • More than 16,000 injuries

  • Millions of dollars in combined property damage, business interruption, and legal expenses

These figures highlight that accidental impacts are not isolated anomalies but a persistent risk affecting commercial properties nationwide.

Why Low-Speed Impacts Still Cause Severe Damage

Even at low speeds, vehicles carry substantial kinetic energy. When buildings are located directly adjacent to parking areas or roadways, that energy is transferred almost instantly into storefront glazing, framing systems, and occupied interior spaces.

Protective design engineering addresses this exposure by incorporating measures such as controlled setbacks, impact-rated barriers, and energy-absorbing systems that reduce force transmission into the structure.

Designing for Real-World Conditions

A common assumption in commercial design is that “it’s unlikely to happen here.” However, both urban and suburban data show that accidental impacts occur across a wide range of property types, including retail centers, medical offices, restaurants, and mixed-use developments.

Design strategies that acknowledge these real-world conditions can significantly reduce risk without negatively affecting accessibility or visual appeal.

Security Engineering as Preventive Design

Security engineering is not solely focused on responding to extreme threats. At its core, it is a preventive discipline that anticipates known risks and integrates protective solutions into the built environment.

Firms such as PNH Sec apply engineering-based approaches to storefront protection, emphasizing performance, code awareness, and discreet integration. Their work focuses on reducing impact risk while preserving the intended use and appearance of commercial spaces.

More information on their engineering approach can be found at:
https://pnhsec.com

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