Whenever the city council finds, upon the basis of a traffic engineering investigation, that the conditions, because of which such highways have been designated as through highways or such intersection or such highway railroad grade crossing has been designated at which vehicles are required to stop before entering the tracks, as provided in sections 10.36.010 and 10.36.020 of this chapter, no longer exist, the city council shall by resolution direct the traffic engineer to remove such signs and pavement markings from such intersections or railroad grade crossings. (Prior code § 67604)