In my experience as a former railroader, the most dangerous road crossing sites are those with double track, with trains running on either one at any time in either direction.
I have personally seen trains strike cars at such crossings, and the recent tragic death of a runner at the McCarver Street crossing in Tacoma's Old Town is a vivid example. Drivers and pedestrians simply do not anticipate a second train, but rush to get through the crossing, and end up dead.
There are a number of such crossings in or near Tacoma, and several have been the scene of fatalities. Hand-wringing and signs threatening fines for trespassing (which people never read) are not effective in preventing this type of accident.
Adding a special, additional flashing red light at these crossings saying " Second train" when one is approaching out of view would get the attention of those trying to cross. I have seen this done on other railroads with good, cost-effective results.
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As the proverb says, " It is better to light one small candle than to curse the darkness." Hopefully Burlington Northern Santa Fe will try this approach. Lives are at stake.