In the aftermath of the April 26 train-bus accident in Evans City that claimed the life of a 91-year-old Callery woman, it’s understandable that there would be discussion about whether a crossing gate or flashing red lights should be installed at the crash site to prevent future accidents.

But the freak accident alone would not seem to justify that costly step.

Up to last month, there never had been an accident at the Maple Avenue crossing, where the crash occurred, and on average only two trains a day use the crossing.

There have not been complaints about near misses, either.

Based on the crossing’s accident-free record, Evans City residents are understandably puzzled about what might have caused the bus to be on the tracks when the train was approaching. Investigators are no doubt looking into whether the bus experienced a mechanical malfunction, causing it to stall on the tracks, or whether the bus was moving when struck by the train, implying the possibility of driver error or the driver having been distracted by something happening in the bus.

The driver was familiar with the crossing.

Meanwhile, weather factors, including reports of dense fog, likewise will be considered.

It could be weeks or months before investigators finish their evaluation of all potential causes and learn all that they can from discussions with the bus driver.

But without past experiences indicating that some corrective measures at the railroad crossing were necessary, spending the estimated $1 million to $1.5 million needed to install lights and a gate could be characterized as an overreaction or waste of money, despite last month’s tragedy.

According to the state Public Utility Commission, costs for safety measures are borne by the entity requesting the changes. Evans City, which every year struggles to balance its budget, doesn’t have the financial resources to pursue a project of that scope on its own.

While the investigation continues, discussion about the crossing’s safety is appropriate. But it seems unlikely that the probe, once finished, will produce any surprising or costly remedial recommendations — perhaps none at all.

In all probability, the crash was simply an unfortunate, tragic accident that had nothing to do with the crossing itself.