steve goldsmith former mayor of indianapolis said to me we can't talk about congestion pricing because it puts together two words that americans don't like to hear. but the fact is we do that and it's very handy. we now have transponders in cars. we still and have a national system so the transponder the northeast states have started cooperating so i can use what used to be called fast lane lane in new york city from boston to new york city. this is all happening faster than we can catch up with but roads are going to be able to sense potholes so there's an app that the city of boston created city working with entrepreneurs, tech entrepreneurs to build these things. they're app called street phone is in your car or you are connected to your smartphone it detects potholes from the vibrations in the car. you don't even have to report it. the car reports it for you. that's a smart car on a smart road. i hope they don't get smarter than we are. that's my only fear but that's the future vision. then we have all these new services. sharing cars, such a great idea. they have had to deal with