Experts of Specialized Police Sector led by Maj. Gen. Ala El Degouy، recommend motorists how to lead safely on highways during rain and invisibility due to thick fog. It is worth to mention that some governorates experienced a snap of bad weather over the last days. On the other hand، Maj. Gen. Essam Sahdy، Head of Traffic Department recommends motorists to commit to instructions of traffic officers on highways. They should lead in lower speed during rainfall owing to lesser ratio of friction between asphalt and the car’s tires. They must concentrate when they are at the wheel. Motorists must run sweepers to clear the wind shield. They must open windows to ventilate the inner of the car to prevent accumulating of water vapor.