Here's another poem from my collection "Momentary Stars" (Clydesdale Jefferson Press 2016):
DIFFERENT WHEN CYCLING
"Slow down, they're green!"
Cycling you often see the lights
a long way ahead. If they're green,
you'll never make it. But relax
and time it nicely for the next phase.
"Speed up, they're red!"
Push on when they're against
and you should be there
for the welcome change.