Reducing accidents is easy if you take your time slow down some and be alert. There are a lot of people out on the roads that are not paying any attention to where they are going or what the traffic is like around them. They drive the same speed, rain, snow or dry pavement and do nut seem to understand that reaction times vary with the weather. I have avoided many accidents of late because of people on their cell phones or texting. The only other way to avoid accidents is to not drive.
Easy answer, don’t drive. Hard answer, treat driving as you would treat having a weapon with sharp edges - always being aware of your surroundings and react based on avoiding collisions. Now that auto drive cars are starting to hit main stream, eventually no one will need to control their cars and accidents will be near zero. A computer system, properly programmed, will react faster, choose correct methods to avoid crashes, and not make mistakes that result in accidents.