P.R. Laws tit. 9, § 5121
The speed of a vehicle or motor vehicle shall be regulated all times with due care, taking into account the width, traffic, use and condition of the public highway. No one shall drive at a speed greater than that which allows the driver to exercise proper control of the vehicle and shall reduce its speed or stop when needed to prevent an accident. Pursuant to the requirements stated above, every person shall drive at a safe and adequate speed when approaching and crossing an intersection or railroad crossing, when approaching the summit of a slope, when traveling on a narrow or winding road or when there is special danger to pedestrians or other traffic, or due to the weather or the condition of the public highway.
History —Jan. 7, 2000, No. 22, § 5.01; June 3, 2004, No. 132, § 5, eff. 8 months after June 3, 2004.