When a vehicle overturns in a traffic crash, the risk of fire or an explosion can rise. This concern was highlighted by Jan Heitzer, deputy chairman of the National Automobile Union, in a discussion with socialbites.ca. He explained that such fires are not typically caused by a head‑on collision itself but more often by the car tipping over and leaking fuel onto hot surfaces or electrical components. In many cases, a spark or a short circuit can ignite gasoline vapors, turning a crash into a dangerous fire scene. Heitzer notes that modern cars are designed to pass safety tests that reduce fire risk, but the exact outcome still depends on the specifics of the crash and the vehicle’s design. Cited: NAU safety overview.
In practical terms, the sequence often begins with fuel leakage after an impact. If the vehicle overturns, damage to the fuel system or fuel lines can expose flammable vapors to heat or sparks. This is why responders are trained to treat overturned cars as potential fire risks until fuel systems can be safely isolated. The emphasis is on preventing ignition by avoiding any source of spark near the crash site and by ensuring the vehicle is stabilized before any interior operations. The takeaway is that while a head‑on collision may seem dramatic, the typical fire scenario involves fuel leakage from an overturned vehicle and subsequent ignition of vapors.
Beyond gasoline, vehicles equipped with liquefied petroleum gas (LPG) systems introduce another layer of fire and explosion risk if the installation or maintenance is faulty. An automotive expert warns that improperly maintained LPG systems can fail at connections where gas leaks might occur. In an accident, a rear impact could push gas through faulty seals or joints, creating a potential ignition source if sparks are present. The cylinders themselves are robust and pass rigorous tests, but the danger lies in the surrounding fittings and hoses that connect the system to the engine. Proper servicing and periodic inspections are essential to minimize this risk.
Experts stress that gas equipment safety hinges on correct installation, regular checks, and immediate attention to any signs of wear or corrosion in the gas lines. When a vehicle with LPG is involved in a crash, responders prioritize shutting off the gas supply and evaluating the integrity of the cylinders and connections. The overall message is clear: while gas systems can be safe when properly maintained, mistakes in installation or maintenance raise the odds of a post‑crash fire.
In all scenarios, the core principle is preparedness and caution. Drivers can reduce risk by ensuring their fuel systems are up to date with manufacturer recommendations, avoiding alterations that could compromise integrity, and staying informed about the specific safety features of their vehicle. For emergency responders, the focus remains on rapid, careful assessment, safe disconnection of fuel sources, and avoidance of ignition sources near any leaking lines. The consensus is that fires in crashes are preventable with rigorous maintenance, proper installation of gas systems, and prudent response protocols.