let's assume that a traffic light, during 5 minutes, rotates 4x for each lane.
and on average, in each cycle of this one, you can earn 10 dollars [ 4 drivers would give you 2.50 ]
10 dollars for 5 minutes.
would be 120 dollars per hour,
and in 8 hours of work, it would be 960 dollars.
let's assume you're a workaholic beggar, and you work 22 days a month.
would be 21k dollars monthly, tax free.
the secret is not to get addicted to crack or other drugs, because that's what kills your potential for growth. Plus, you wouldn't have huge rent costs or transportation because your office would be on the streets. you could earn food, without costs with clothes and other things so as not to disturb your business, it would only be gain gain