Not sure I agree 100% with the productive/unproductive value system you're establishing, but I do think it's an interesting idea — how can we weight the various

Not sure I agree 100% with the productive/unproductive value system you're establishing, but I do think it's an interesting idea — how can we weight the various aspects of a trip we value (time spent, comfort, cost, environmental and community impact, etc)? Might be interesting to build a system that lets you specify how much you value each of those, and re-rank transit options accordingly?