Simply slow the shutter speed down as far as you can, you need to set the slowest iso, smallest appeture and as many ND filters as you need to get the required result, a bit of trial and error needed.
Also shooting headlong down the street will more than likely still show up people and vehicles as they'll be moving in a straight line towards and away from you, best to go for a side shot, even then you may have the odd ghostly image.
Be interested in seeing your results, good luck