This is the third of our programmes from the 93rd Annual Meeting of the Transportation Research Board in Washington, DC.

Today guest reporter Shelley Row talks to Melanie Crotty from the San Francisco Bay area and Tom Blair who has just joined Iteris. Kevin Borras catches up with IBM's Dave Pickeral and the founders of Driverless Transportation of Virginia, while Paul hears about simulators from Realtime Technologies, Inc and from Inrix.

These programmes are brought to you by Thinking Highways Magazine and sponsored by Inrix, Iteris, Moxa and Traffax.

We have collected so much material from TRB this week that there will be plenty more from here in forthcoming "Thinking Alouds".