No person shall drive, propel, or cause to be driven along or over any road within the park, any vehicle or conveyance at a rate of speed greater than speed limit signs posted, nor, in the absence of signs, at a speed in excess of 20 miles per hour, at a speed which is more than reasonable and proper in regard to traffic conditions and the use of the road, or at a speed which endangers the safety of any person or property.
(`88 Code, § 4-45) (Ord. 90-15, passed 12-3-90) Penalty, see § 10.99