Only for nostalgic purposes. Places like San Fran.

Traffic moves way too fast and people either aren't smart enough to get out of the way or they have a "death wish".

Light rail with crossing arms and the whole nine yards. Seems to work fine in Dallas. If they try to go around the crossing arms then they have a death wish. Also, I like the grade separations on key intersections, so the train doesn't hold up us polluting drivers.

I would use the light rail, if it came by my work. But it doesn't even get close. One of my friends tried to commute from Arlington, TX to Carrollton, TX and it took 2 1/2 hours. Population density is high enough only along Central Expressway. Population density is high enough along the Dallas North Tollway, but they didn't plan for it, so it's too late now.

Glen