I'm surprised when I see someone doing the logical, commonsense thing: Walk facing the oncoming traffic.

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

I wish the dashboard indicators for lights were standardized throughout the auto industry.

It would be helpful to be able to see the layout and for the maps to label what exits to use to get to nearby sites/buildings so you aren't wandering the station trying to read the signs in the crowds.

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

There are easily accessible programs to help aging drivers maintain their skills, or recognize when they need to give up their cars.

I think that maps showing platform details would be useful to visitors, especially to chaperones of school groups, etc. Also useful would be either a compass rose or an arrow pointing North at every metro exit. Emerging from underground is disorienting, especially at night.