说到denfensive drive, Smith 5 keys system大概是我看到的最好也是最简单的一个

5个要点如下：

1. Aim High in Steering 
Look 15 seconds into your future. (Don’t just look at the vehicle in front of you) 

2. Get the Big Picture 
Look for Hazards. (Other Motorists, Pedestrians, Vehicle doors opening) 

3. Keep Your Eyes Moving 
Don’t stare. (Use your peripheral vision)(Stop the fixed habit stare) 

4. Leave Yourself an Out 
Monitor the space cushion around you and your bike. 

5. Make sure They See You 
Use your signals- (Directionals, 4-Way Flashers, Head Lights, Brake Lights, Horn, Hand Signals) Make Eye Contact.

其中，第一个是最关键的，看到15秒远的路。