Automatic intersection map generation task 10 report.
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2016-02-29
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Alternative Title:Automatic intersection map generation : V2I safety applications project ; task 10 report.
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Subject/TRT Terms:
- Accuracy
- Automatic vehicle detection and identification systems
- Center lines
- Data collection
- Feasibility analysis
- Intersections
- Laser radar
- Mapping
- Maps
- Traffic lanes
- Traffic signal phases Connected vehicle
- intersection map
- map generation
- V2I system
- roadside equipment
- basic safety message
- vehicle to infrastructure communications
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Edition:Final report
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Abstract:This report describes the work conducted in Task 10 of the V2I Safety Applications Development Project. The work was performed by the University of ; Michigan Transportation Research Institute (UMTRI) under contract to the Crash Avoidance Metrics Partners LLC (CAMP) Vehicle to Infrastructure ; (V2I) Consortium. Participating companies in the V2I Consortium were FCA US LLC, Ford, General Motors, Hyundai-Kia, Honda, Mazda, Nissan, ; Subaru, Volvo Truck, and VW/Audi. This project investigated the feasibility of automatically generating intersection maps in SAE J2735 MAP format ; using Basic Safety Messages (BSMs) received by Roadside Units (RSUs). A procedure for classifying vehicle trips through the intersection and ; subsequently estimating lane centerlines was developed. In addition, a method for associating vehicle movements to the green signal phase was also ; developed using Signal Phase and Timing (SPaT) messages. BSM data from five intersections used in the Safety Pilot Model Deployment Project ; were analyzed. The estimated maps were compared to reference maps produced from LIDAR surveys of the intersections. With 48 traffic lanes in ; total, 43 lanes and associated vehicle movements were correctly identified using the estimation approach. Five lanes were not successfully identified ; due mainly to a lack of BSM data. For the identified lanes, two measurements of accuracy were calculated: the mean distance of the estimated ; geometry node points to closest points in the surveyed lane centerline geometry and the maximum distance of estimated points and surveyed lane ; geometry. On average, the mean distance was found to be 0.5 meter and maximum distance was found to be 1.2 meters between the estimated maps ; and reference maps. Overall, this project demonstrated the significant potential of using BSM data for estimation of an intersection map as well as ; association of the vehicle lanes (vehicle movements) to the traffic signal phases.
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Main Document Checksum:urn:sha-512:3f1cbad8095ad58cf03f1c09eab50ea46b05bbe10541060badf10e4637710cda03d21a5d1ebe60ffde24b27bb39621c6aebd8114a3f6f56eda1c04a286c56b81