I don't believe any sort of traveler does a better job than any other sort of traveler at obeying traffic safety laws. It's difficult to foresee a camera program that can be used with bikers and walkers.

As our eyes age, they have a tougher and tougher time adjusting to rapid changes in lighting, and we need to be aware of this.

My philosophy is: Everybody needs to look out for everybody else.

I love the cameras and don't mind mailing in my check when I fail to pay attention and go too fast.

When different generations of cars are combined into one train, it messes with the loudspeaker system.

Metro shows no signs of being able to make its trains run on time. This occurs during single-tracking and it occurs during normal rush hour service.

Metro, built in the late 20th century, is the most escalator-dependent system in the world.