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

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

The cars themselves are getting smarter and will be increasingly able to assist drivers - to the point where the cars will be completely automated.

Motors that are vulnerable to shorting out because of snow ingestion should have snow filters installed over air intakes, and spare motors should be ready to replace any failed motors.

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

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.

If the Metro general manager, Paul Wiedefeld, says those extra hours for maintenance are necessary to help fix the system and make it safer, then that gets top priority.