Bangkok Metropolitan Administration (BMA) officials said they had found new spots for 244 of the 286 targeted stalls along the road, while vendors at another 60 stalls had agreed to sell only at night.
The footpaths of Silom Road, a major business and commercial artery, for years have been almost impossible for pedestrians to navigate because of the presence of so many vendors.
Authorities said police would strictly enforce the law against any vendors who violate the new agreement and attempt to set up stalls on the footpaths.