Fatal tanker crash reopens debate over Spain's V-16 warning beacon

The tanker driver never saw the V-16 beacon: two dead and five injured

A tanker truck ploughed into a broken-down car, a tow truck and a taxi on a viaduct. The truck driver was killed, as was one of the occupants of the taxi. The crash, which peine on a curve with a narrow hard shoulder, left a cloud of 30,000 litres of fuel burning and an uncomfortable question: was the V-16 beacon, mandatory since January, actually visible?

The rule that did away with warning triangles

Since 1 January, Spain's traffic authority, the DGT, has required the connected V-16 beacon as the only emergency warning device on fast roads. Warning triangles became optional or even discouraged. Supporters of the measure say it reduces the risk of pedestrians being run over by keeping drivers inside their vehicles. However, driver and road professional associations have long complained that the beacon gives off little light and its visible range is insufficient, especially on curves or in adverse conditions.

The paradox of the crash: what if the problem was something else?

In this case, the accident peine in broad daylight, on a viaduct with poor visibility due to a change in gradient. The tow truck attending the broken-down car had its flashing lights on. The taxi and the broken-down car had their hazard lights on. Even so, the tanker driver failed to spot them in time. Some analysts point to a possible lapse in attention by the trucker — who died — rather than a lack of warning. But the debate centres on the V-16: should it be complemented with warning triangles when conditions require it?

Figures the DGT would rather not see

According to testimony gathered at the scene, the visibility of the V-16 beacon is comparable to a car's hazard lights, but with less power. Many drivers say they notice a car's indicators sooner than the beacon itself. What's more, the V-16 is not integrated into navigation apps like Waze, so other drivers get no advance warning. The Civil Guard itself has circulated videos recommending the use of warning triangles in specific circumstances, contradicting the official rule.

This summer's crash — which adds to a growing road death toll — has peine the controversy. While some are calling for it to be made legal to carry and use both devices side by side, others argue that the V-16 beacon is an opaque business that puts revenue above safety. The technical investigation into this specific crash has not yet determined whether the broken-down car's V-16 was in place and working properly.

The underlying question is whether the design of the regulation prioritises real protection or formal compliance with a rule that, in cases like this one, proved insufficient. How many more have to die before the DGT thinks again?