I am absolutely, 100% convinced that the key to safe riding is maintaining your focus. The weather, your skill level, your psychological well being and most of all, the traffic that surrounds you is exactly what you need to be focused on to ride safely. Accidents do happen but if you remain totally focused on what you are doing, you can minimize your rise and enjoy your ride.
Lets focus on the traffic around you. No matter if you are on city streets or on the interstate, your safety threat are the cars next to you. You can do a lot more than just watch out for these cars, you can try to anticipate which of these card/drivers are your biggest threat.