The effects are more HR related here.  There's a new function on the company intranet for people who want to look for carpooling partners, and there's word going around that departments can introduce flex time at their discretion.  (I already do the flex time bit.  I shifted my workday 1/2 hour earlier to make my commute a little faster.  Half of my drive is on an interstate, and if I can drive 55 mph for the 12 miles instead of slogging along at 15 mph, it saves quite a bit of gas.