Something I made myself, I believe it's 'pretty' easy.
During the night,
on the left I shine white.During the night,
I shine red on the right.During the day I'm less visible,
because of the light.I lead to anger and frustration,
for most of the population.Humans want to avoid me,
and animals can't have me.Sometimes I'm reversed,
but only because of choices in the past.
Can you find out what/who/... I am? Enjoy!