1. SP1 – Meeting April 23 rd 2007 - Schieberdingen Electronic Systems Page 1 of 13 Integrated Project Co-operative Systems for Road Safety “Smart Vehicles on Smart Roads” SP1 – SAFEPROBE Scenario Analysis UC11 Luciano Picerno - MMSE SAFESPOTSAFESPOT

2. SP1 – Meeting April 23 rd 2007 - Schieberdingen Electronic Systems Page 2 of 13 Scenario Analysis UC11

3. SP1 – Meeting April 23 rd 2007 - Schieberdingen Electronic Systems Page 3 of 13 Scenario analysis UC11 Assumptions The Ego vehicle approach the working area detecting obstacles, operation machines, oncoming vehicles and broadcast information to other probe vehicles reducing the speed and moving to the right side of the lane. Ego vehicle Initial Speed 60km/h End speed 30km/h Participant vehicles (1-2) Initial speed 70km/h End speed 30km/h Participant vehicles (3) Speed 30km/h Allocation and assessment of useful data Ego vehicle: Passenger car Vehicle Dynamics Management: Not essential, at least speed, yaw rate, lat/long accelerations, steering angle (  dynamic vehicle state, and predicted future trajectory) Body management: Not essential, at least turn indicators to detect intended changes in lane lateral position Environment Perception: Radar, vision (passive), laser scanner that can detect the obstacles in the working area NAV: GPS required for on time map update of info about working area, operation machines and oncoming vehicles Others Vehicles: Passenger Car, Truck, PTW Vehicle Dynamics Management: Not essential, at least speed, yaw rate, lat/long accelerations, steering angle (  dynamic vehicle state, and predicted future trajectory) Environment Perception: Not essential, at least turn indicators to detect intended changes in lane lateral position NAV: GPS required for map update of vehicle position Comment SP 4 application will give way to operation machines on the road, and will establish a priority access strategy with other V2V probe vehicles if the width reduction allows only an alternate one way passing. Proper warning will be given to the driver, otherwise, if two ways traffic is still available simpler information is provided to the driver that should take the closest position to available carriageway margin in the direction of traffic.

4. SP1 – Meeting April 23 rd 2007 - Schieberdingen Electronic Systems Page 4 of 13 Scenario analysis UC11 Scenario Description 1.Ego vehicle approaches the working area 2.It gets from Infrastructure (I2V communication) info about minimal road width and length of the working area and from V2V communication or on board sensors the position and dynamic information of possible vehicle coming in the opposite direction and operation machines active in the working area. 3.SP1 system updates the local dynamic map with the information of the working area (position, width and length) 4.SP1 system update the local dynamic map with the vehicles coming in the opposite direction 5.SP1 system updates the local dynamic map with operation machines 6.SP3_module broadcasts the working area information to other probe vehicles

5. SP1 – Meeting April 23 rd 2007 - Schieberdingen Electronic Systems Page 5 of 13 Scenario analysis UC11 Requirements coming from this UC: Operation machine information receive: The system shall be able to receive information on presence of active operation machines in road works nearby, and store it on local dynamic map Operation machine information transmit: The system shall be able to request transmission of an active operation machine (in cooperation with SP4 application), and store it on the local dynamic map Road geometry calculation with sensors: The system shall help road geometry calculation with information from sensors

6. SP1 – Meeting April 23 rd 2007 - Schieberdingen Electronic Systems Page 6 of 13 Scenario analysis UC11 Considerations: The road geometry calculation is essential As is the proper positioning Not all vehicles are equipped like ego-vehicle (but they need to reduce the speed anyway!) Operation machines can play a role too… so? Infrastructure is playing an important role (also placing RSU appropriately) Communication with operation machines must work! LDM update is necessary (also for operation machines position) Positioning must be accurate Need of V2V and V2I communication Radar and laser scanners on Ego Vehicle are essential

7. SP1 – Meeting April 23 rd 2007 - Schieberdingen Electronic Systems Page 7 of 13 Scenario analysis UC11 Assumptions: Road works are in LDM at appropriate time V2V and V2I communication are propagating information Using the proposed numbers: Each vehicle must reduce the speed at 30 km/h Considering PTW 150m far away from Ego-vehicle, and truck 100m further, and that they are initially faster than Ego-vehicle (both at 70km/h, while Ego-vehicle is running at 60km/h), the need for a prompt slow down is essential, even when speed are not high. In case of operation machine, all involved vehicles must give way (and machines will be added to LDM, provided that they indicated their presence to the system). Infrastructure can help a lot (with information from Ego-vehicle too)