I think we've gone beyond the point that we need to put sensors every few feet down highways and things like this. The technology and the wireless technologies seem to be integrating so that this sort of infrastructure is not required.
I'm not an expert on the infrastructure side of this, but I did visit UCLA Berkeley, where they have automated intersections and buses and cars running through them.
Where they are developing that infrastructure, a lot of intersection stuff will be looking for bicycles, looking for pedestrians, and monitoring the vehicles that are coming to know whether somebody is going to run a red light, and then it will delay it.
A lot of it is wireless technology. Definitely one of my recommendations is that we invest in the infrastructure. We need it here. You can see the benefits earlier.
I can't say that I'm an expert on the cost of that, but I think the costs are coming down as technology is getting more mature. It's not going the other way.