Continuing with my driving theme from Friday... Why not link those "Your Speed" traffic signs on local roads up to a traffic monitoring web site?  From there you could see the "Average speed for the last X Car" reports that would give you a good idea of how heavy the traffic is on the local roads.  A majority of my commute is spent on a non-highway road that has recently been equipped with these signs that are supposed to make people feel guilty for speeding by comparing their current speed with their actual speed.  I'm all for these signs if they could be put to good use and tell me how fast or slow the traffic is flowing on these local roads.  Currently, when I leave my house I'm always unaware if my commute is going to take me 15 minutes or 45 and the traffic reports available on line only cover major arteries.  If I could tap into this information that is being gathered in real time I would probably have a good indicator of whether I should leave or decide to VPN in for a while before actually coming into work.