@danixdefcon5 said:Yep, it also saves you from driving from the suburban areas. I kind of lost the point there, as over here the only "commuter rail" system in place just opened this year, and I'm not familiar with the system. It does, however, provide with a "quick jump" between two metro stations on different lines, serving as a shortcut.Right, that's why it's a commuter rail. People out in the burbs can hop onto a train and ride into the city for work rather than deal with traffic. However, in the suburbs themselves driving tends to be the preferred mode of transport, which makes sense with everything being further apart. Of course, the need for commuter rail systems is just another outgrowth of the problem of managing dense cities which themselves might be a bit of an anachronism. @danixdefcon5 said:Yipes. Mexico City's subway is actually safe, it is one of the places you'd least expect to be mugged. I forgot this isn't the case everywhere.It tends to vary in the US. In some cities (Boston, New York, San Francisco) the public transportation is used by all sorts of people so you're as safe as you are anywhere. Chicago is modern enough, though, that driving is much less of a pain and so public transportation tends to be reserved for the poor, feeble and insane.