LETTER from R. RICHARD DUNCAN Trenches Along Roadways Still Dangerous To Drivers To the Editor: “Slip sliding away…” Her car slid toward the side of the road. It caught in the trench and flipped. She was hurt and her car totaled. She is scared to drive again. But she knows she must go out and find a new car and force herself to try again. It wasn’t her fault. If the sides of the roads were done properly she would…