The document entitled Oregon Temporary Traffic Control Handbook (Oregon Department of Transportation, May, 2006 edition) is adopted and shall be in effect until the city engineer adopts a replacement. The city engineer may require additional traffic control devices as deemed appropriate to protect the public. The city engineer is authorized to adopt a different document addressing the same subjects if the engineer finds that a different document is more up-to-date, consistent with state standards or otherwise provides better standards for temporary traffic control.