The New York trains I remember would make sparks all the time; I would suggest any dry tinder near the tracks would be a risk either way. California has electr

The New York trains I remember would make sparks all the time; I would suggest any dry tinder near the tracks would be a risk either way. California has electrical wires entangled with dry trees after years of drought. (Trees are tricky, since it takes years after installation for them to grow tall enough to reach the power lines. In the NE I've seen power outages caused by tree branches laden with ice from freezing rain sever power lines.)