A car runs into you from behind. This is what many cyclists fear the most, but it’s actually not very common, comprising only 3.8% of collisions. (source) However, it’s one of the hardest collisions to avoid, since you’re not usually looking behind you. The risk is likely greater at night, and in rides outside the city where traffic is faster and lighting is worse. The three cyclists killed when hit from behind in Austin in 96-97 were all riding at night, and at least two of them didn’t have lights on their bikes. (source) The best way to avoid getting Rear-Ended is to ride on very wide roads or in bike lanes, or on roads where the traffic moves slowly, and to use lights when biking at night.
How to avoid this collision:
1. Get a rear light. If you’re riding at night, you absolutely should use a flashing red rear light. Bruce Mackey (formerly of Florida, now head of bike safety in Nevada) says that 60% of bike collisions in Florida are caused by cyclists riding at night without lights. In 1999, 39% of deaths on bicycles nationwide occurred between 6 p.m. and midnight. [USA Today, 10-22-01, attributed to the Insurance Institute for highway safety]
Bike shops have red rear blinkies for $15 or less. These kind of lights typically take two AA batteries, which last for months (something like 200 hours). I can’t stress this item enough: If you ride at night, get a rear light!
2. Wear a reflective vest or a safety triangle. High quality reflective gear makes you a lot more visible even in the day time, not just at night. I had a friend ride away from me while wearing one during the day, and when she was about a quarter mile away, I couldn’t see her or her bike at all, but the vest was clearly visible. At night the difference is even greater. Bike shops have vests and triangles for $10 to $15. Also, when you hear a motorist approaching, straightening up into a vertical position will make your reflective gear more noticeable.
3. Choose wide streets. Ride on streets whose outside lane is so wide that it can easily fit a car and a bike side by side. That way a car may zoom by you and avoid hitting you, even if they didn’t see you!
4. Choose slow streets. The slower a car is going, the more time the driver has to see you. I navigate the city by going through neighborhoods. Learn how to do this.
5. Use back streets on weekends. The risk of riding on Friday or Saturday night is much greater than riding on other nights because all the drunks are out driving around. If you do ride on a weekend night, make sure to take neighborhood streets rather than arterials.
6. Get a mirror. Get a mirror and use it. If it looks like a car doesn’t see you, hop off your bike and onto the sidewalk. Mirrors cost $5-15. Trust me, once you’ve ridden a mirror for a while, you’ll wonder how you got along without it. My paranoia went down 80% after I got a mirror. If you’re not convinced, after you’ve used your mirror for a month, take it off your bike and ride around and notice how you keep glancing down to where your mirror was, and notice how unsafe you feel without it.
7. Don’t hug the curb. This is counter-intuitive, but give yourself a little space between yourself and the curb. That gives you some room to move into in case you see a large vehicle in your mirror approaching without moving over far enough to avoid you. Also, when you hug the curb tightly you’re more likely to suffer a right cross from motorists who can’t see you.