Executive Summary *Note: “Connected Vehicle” is used as the same meaning of VII or IntelliDriveSM in general and “Connected Vehicle Proactive Driving” in bold font is used as the particular name of the proposed system or service concept. Acknowledging the plethora of VII/IntelliDriveSM efforts since 2003 we take a bird’s eye view to explore a new higher-level safety concept to reduce accidents.  We focus on accident causes and trends using Connected Vehicle technology and data.  Many capabilities proven so far in Connected Vehicle can directly transform hazardous situations and/or dangerous roadways into safer well driven vehicles and/or routes using V2V/V2I communication.  Yet, there are still opportunities where Connected Vehicle systems may fail to avoid collisions because of aggressive vehicle speeds or the excessive deceleration of front vehicles as well as rear-end collisions, for example, caused by vehicles lacking Connected Vehiclesystems.  How do we close these gaps? We need to focus to reduce the accidents not only caused by the subject (own) vehicles, but also eqaually hit by other vehicles.  Thus we propose to capture measurements for high levels of perceived danger, high levels of accident rate circumstances and conditions to systematically show drivers how to reduce accident possibility by visually/audibly guiding them toward lower accident rate circumstances and conditions.  This new integrated safety concept called Connected Vehicle Proactive Driving will provide a broad protective safety net for the entire roadbased transportation system. The key to Connected Vehicle Proactive Driving is to analyze and show drivers guidance based on our Accident Probability Index using Connected Vehicle technology and data; and encourage drivers to avoid higher indexed routes by providing safer alternatives and conditions.  Analyzing Connected Vehicle probe data to create Connected Vehicle Proactive Driving measures will provide the following benefits: (1) Gives drivers the option to avoid routes guaranteed to elevate their blood pressure by creating defined measures on the Accident Probability Index involving “the level of perceived danger”. (2) Gives drivers the option to avoid or use extra care on routes with high accident rates. (3) Gives drivers the option to avoid routes with adverse climate conditions and dangerous road geometry. (4) Updates drivers while enroute:  The vehicles with Connected Vehicle with DSRC as the best due to the least latency can receive the updated real time Connected Vehicle Proactive Driving updates along road networks.  Vehicles without DSRC devises will have a slight disadvantage. Regardless, Connected Vehicle Proactive Driving will provide a broad protective safety net for the vehicles both with and without Connected Vehicle systems, but a bit more for the vehicles with Connected Vehicle systems. This integrated safety concept called Connected Vehicle Proactive Driving would be new and innovative as its integrated safety service concept as well as its techninical safety concept and ideas on how to reduce accident probability for drivers reflecting particularly ‘the level of perceived danger’; that is what conditions make drivers tense up, feel strained or sense dangerous conditions; and ‘the level of accident rates’ along road network. Then the Connected Vehiclesafety scenario including collision warning/control systems either of in-vehicle systems, infrastructure systems, and cooperative systems will become more complete by adding the new concept of Connected Vehicle Proactive Driving with its broad approach to reducing potential accidents along the road network before and after the departure for vehicles with or without Connected Vehicle capabilities. Connected Vehicle Proactive Driving can be further extended to include intermodal travel modes with transit and park & ride.  It will provide great benefits to reduce the possibility of accidents. This conceptual application submission includes short-, mid- and long term research & development factors, but most of them can independently deployed into the integrated system. We propose the initial simple application development and field test to apply in the pilot deployment at first.  

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