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.

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.

I don't like the midnight closing on weekends. It's one thing to tell people they have to drive to Jiffy Lube Live in the outer suburbs.

Nobody likes paying tolls. It's difficult to explain the concept of dynamic tolling, where the price varies to maintain the flow of traffic. And it's difficult to explain why highway widenings don't wind up helping commuters in the long run.

I don't know of any source for online maps showing the platform, stairs, escalators, elevators, mezzanines and other station details.

I can't see a problem with imposing fines on drivers who violate traffic safety laws. The speed limit is the speed limit. A red light means stop. These things haven't changed since people got their driver's licenses.

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