Claims of privacy to withhold this info should not fly unless the persons decline the parking permit now furnished for free. I am not suggesting that anyone be forced to participate in a carpool. How people choose to deal with that information they can decide for themselves. Hopefully that could be incentive enough. NIH should eliminate free parking and use the parking fees to pay for the new buses, and expand the Transhare program.
Free parking amounts to a subsidy to polluting commuting.
NIH is served by several bus lines, a Metro stop, and several dedicated satellite parking facilities and shuttles. All of these would enjoy more use if we were to end the free parking pollution subsidy. We have designed a bad system when the less polluting commute costs eight times more and takes longer. Exhorting people to change their behavior is far less effective than changing the relative price and convenience of the competing options. We at NIH have it in our power to change the equation and make the less polluting commute also the cheaper commute.