The governor give the order on Friday, while Addressing them at the Government House.
He said: "I am giving all groups one month to leave the roads. Within this one month, you should find alternative locations to carry on your businesses.
"By the first week of July, the state government will swing into action. Port Harcourt must be clean, whether you like it or not."
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"We have called this meeting to avoid conflict. I called you to discuss the time frame for the implementation and not to change the decision," he stated.
"Our roads are now mechanic workshops. Our roads are now markets and motor parks. There is this spirit that makes the traders and mechanics believe that you can only make money on the road. We will end that spirit. Your activities litter the road. There will be consequences for mechanics using the road for their trade after the one-month period. The vehicles being repaired will be seized," Wike stated.