9/22/2010
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The V2I safety roadmap was recently updated, and it is posted on the IntelliDrive web site (www.IntelliDriveUSA.org).
The V2I Safety Research Plan Roadmap has five “tracks” as shown. This tracks are interrelated, as outcomes from one track will serve as inputs to another. Note that most of the tracks focus on safety applications; however, track 3 will build the technical foundation that will enable all types of V2I applications including mobility and environment.
Track 1 – Applications Analysis will help identify high priority crash types that prove to be technically feasible and cost effective for research investment
Track 2 – Prototype Development includes the development of a concept of operations for V2I safety and development of prototype applications derived from the concept of operations. The prototyping will include the development of system engineering documents and unit testing in order to determine a particular safety application’s functionality and feasibility.
Track 3 – Infrastructure Communications/Interoperability includes all the technical work required to enable safety and mobility applications that use SPaT.  This track also includes technical activities such as mapping, positioning, and communication requirements. I will discuss track 3 and SPaT related activities in greater detail.  However, for now I want to emphasize that these activities will lead to a major milestone in the 2Q 2013, when FHWA will issue Policy Guidance for SPaT deployment.
Track 4 – Benefits Assessment includes an assessment of safety applications through the use of Field Operational Tests and/or simulation, where applicable.
Track 5 – Deployment Planning includes activities to define and develop public agency requirements, and to develop guidelines, and recommendations for practitioners that will assist in the implementation and deployment of the required infrastructure in order to make V2I safety applications functional.  In essence, we are developing a “toolbox” that will help State and local agencies through the process of procurement and deployment of IntelliDrive infrastructure devices and road-side equipment.
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There is too much detail here to describe all of the tracks but I will elaborate a little more on track 3 since it has the most relevance to this breakout session.
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Track 3 will provide the critical technology underpinnings that allow V2I applications to be deployed nationally and across jurisdictional lines.
The outcome of Track 3 will be a foundation for V2I that includes communications, SPaT, mapping, positioning, and security, to enable multiple systems or components to exchange useful data and information. The final product is an Integrated V2I Infrastructure System that will serve as the reference implementation for the infrastructure component of V2I.
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The Definition of Signal Phase and Timing (SPaT) Interface and Policy Guidance will involved development, test & evaluation, and refinement of a SPaT Prototype. 
•Development of a SPaT Prototype will be based on an open interface definition between signal controllers and mobile devices. It will use existing standards, NTCIP 1202 for the controller equipment and J2735 for the mobile devices, to define the objects and message sets that will pass the information between the devices.  The information will include the signal state for each phase and the time remaining in the phase.
oThe output from this project is the Interface definition and a working prototype using two manufacturers’ signal controllers.
•Test and Evaluation of the SPaT Prototype will refine the interface developed under the SPaT prototype work.  This work will also facilitate the modification of controller software and firmware modifications for the remaining signal control equipment vendors.
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oThis project will provide the Final SPaT Interface Definition, which will lead to determining Policy Guidance in the 4th quarter of 2013.
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Activities included under the Infrastructure Systems Interoperability and Communications includes the technological issues required to develop and Integrated V2I Infrastructure System.
There are six projects under this activity:
•The Roadway Geometry and Inventory (RG&I) Trade Study was was undertaken to examine the state of practice in the mapping industry, from both public and private sectors, and to determine the current level of detail that is available regarding roadway features in electronic mapping databases.
oThe study was initiated in the 3rd quarter 2009, and will be completed in the 3rd quarter 2010.
oA Revised Final Report, detailing the findings of the study, was submitted on June 9, 2010. The report provides recommendations for moving to an integrated mapping solution that will meet the requirements for the Geometric Roadway Map Prototype
•The Geometric Roadway Map Prototype  will use the results of the Roadway Inventory and Geometry study to direct research solutions for developing, producing, and maintaining roadway maps of sufficient resolution to meet IntelliDrive SM application.
oThe anticipated start date for this project is 4th quarter 2010, with completion in 2012.
oThe outcome of this project will be mapping solutions that meet the needs of the IntelliDrive program, including accuracy, resolution and deployability.
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•The Positioning Prototype will incorporate a trade study to quantify the resolution and capabilities of current positioning technologies, including differentially corrected GPS.  The project will assess the positioning needs for intersection safety applications and will result in a selection of the positioning technology that can fill those requirements.  Unit testing will be conducted at TFHRC.
oThe project is anticipated to start in 3rd quarter 2010 with completion in 1st / 2nd quarter 2012.
oThe outcome of this project will include a trade study on the capabilities of existing positioning technologies, and potential solutions to provide the positioning requirements of V2I intersections safety applications.
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•The Communications Trade Study will evaluate and document the capabilities of existing communications technologies that could be used in the IntelliDrive program. A matrix will be developed that will allow users to select an appropriate communications technology for an application based on the requirements of the application including latency, message size, transmission frequency, etc.
oThe trade study is anticipated to begin in the 3rd quarter 2010, with completion in the 1st quarter 2011.
oThe outcome of the trade study will identify the capabilities of available communications technologies in a format that can be used for selection of an appropriate technology for a given application.
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• The Communications Requirements project will assess the telecommunications requirements for each IntelliDrive application and, based on the Communications Trade Study, select an appropriate communications technology for each application.  Even though it has been decided that DSRC will be used for Safety applications, an assessment needs to be done for mobility and environmental applications.
oThis project is anticipated to start in 1st quarter 2011, with completion in 1st quarter 2012.
oThe project will result document recommendations on technologies to meet the communications requirements of V2I applications.
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•The V2I Security Requirements project will be coordinated with the V2V Security .  This will address the Certificate Authority for messages, validation of messages, verifying sources of messages and other data transfer security issues as they relate to infrastructure components and to backhaul networks.
oThis project is anticipated to start in 1st quarter 2011 and will be completed in 1st quarter 2012.
oThis project will be identify and document information required for security activities within the IntelliDriveSM program as well as the Infrastructure Study / Footprint Analysis in Track 5.
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The Integrated V2I Infrastructure System project is designed to develop a “reference implementation,” which is defined as a working model that will serve as an example for how to deploy SPaT, mapping, positioning, security and communications, to enable V2I applications.
•Developing an Integrated V2I Infrastructure System will require taking the outputs from:
oSPaT;
oMapping;
oPositioning;
oSecurity; and
oCommunications.
•Formatting the outputs from each component so that the pieces work together as a unit, and can be deployed to enable IntelliDrive applications. 
•This “reference implementation” will be a model for jurisdictions interested in deploying IntelliDrive to use to help guide them with deployment.
oThe anticipated start date is 2nd quarter 2012, with completion in the 4th quarter 2012.
oThe outcome of the project is a document that will provide the reference implementation.
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The Applications Certification Requirements project is required to ensure V2I safety applications meet the requirements of the IntelliDrive program.
•Applications will involve multiple components, including potentially hardware, firmware, software and algorithms. The Applications Certification Requirements will describe how certification of these systems should be approached.
oThe project will not provide a certification process for any given component.
oAn equipment certification process is being developed elsewhere under the IntelliDrive program.
oEquipment certification alone is not adequate for the certification of applications.
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•Project progress:
oThe anticipated start date for this effort is 2nd quarter 2011 with completion in 2nd quarter 2012.
oThe project will be documented with a report that establishes certification requirements for V2I safety applications.
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