We just returned from the Automated Vehicle Symposium held annually in San Francisco. It has always been a wonderful venue for the exchange of ideas and concerns about automated vehicles. This year work zones and roadway safety infrastructure continue to make progress in the AV world. In fact, it is remarkable how the conversation has changed in a few short years. Three years ago, we told the automakers what they needed to understand about work zones. It was a major epiphany for them. Last year we offered a way to report work zones in real time. This year the discussion focused on the tools available and how best to use them.
Breakout Session # 32 titled “OEM/DOT Dialog on Dedicated Lanes, Work Zones, and Shared Data” was broken into those three topics. They were all worthwhile but in the interest of time we will focus on the work zone portion here. The focus of the session was real-time reporting of work zones to automated vehicles and digital maps.
Ross Sheckler of iCone started off by describing the tools that will make work zone reporting automatic and accurate – both in terms of location and time.
Paul Pisano of FHWA discussed the connected work zone grant. They are evaluating in-car traffic information. The study runs from May 2017 to March 2019. One of the desired outcomes of the study is to standardize work zone data elements. Every state, every practitioner, etc. has their own list and they have started the discussion of what should be on that list and how it should be formatted so that everyone can report things like work zones in the same way.
They plan to do this in two states: what they called a low-fidelity version and a high-fidelity version. The Low fidelity version will come first and includes the simplest of elements: GPS location, start and end dates, and some description of the work zone such as “right lane closed”. The later, high fidelity version will include detailed lane level mapping and much more.
Bob Brydia of TTI discussed his work with connected work zones on I-35 between Austin and Dallas. He collected data on each and every lane closure – 1,000s of them over the past few years. Each recorded lane closure included 60 fields to describe each closure. That’s a lot! But OEMs have told him they want much, much more!
In a related topic it was pointed out that in the recent federal RFI on connected vehicles, two different US automaker trade associations said they want a universal work zone database! So, we all see the need. Its just a matter of deciding what it should include, as Paul described earlier.
Bob Brydia says they currently send work zone data out as traffic info to help drivers. But eventually this will become more of a traffic operations function. CAVs will use this info to automatically reduce delays and speed travel times.
It was a great session, as always, and we look forward to more dramatic progress next year.