Real-Time Traffic Data Generation Using Vehicle Images
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Solution Overview
Problem
Existing traffic information systems, such as those using probe vehicles, often provide delayed information, especially in congested conditions, as they only update after the vehicle has passed through an intersection, limiting real-time data availability to subsequent vehicles.
Innovation Solution
A system and method that utilize real-time location and image information from vehicles to calculate the time required to pass through a specified section, including adjustments for traffic light periods and heavy vehicle presence, enabling accurate and timely traffic information generation and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traffic information is provided after the probe vehicle completely passes through an intersection, then the information is accurate for vehicles that have already passed, but the information becomes outdated and useless for vehicles still approaching or just entering the intersection
Solution Approach 1:
The system calculates and provides traffic information before the probe vehicle completely passes through the intersection. By using real-time location data and estimating the remaining passage time, the system delivers predictions to subsequent vehicles while the probe vehicle is still in the process of passing, thereby providing timely and actionable traffic information rather than outdated data after completion.
2Reliability
If the system waits for the probe vehicle to complete the section to generate traffic information, then data collection is complete and accurate, but real-time traffic information cannot be provided to vehicles currently in the section
Solution Approach 1:
The system generates and provides traffic information based on partial data collection rather than waiting for complete passage. By calculating passage time and providing predictions when the probe vehicle has covered a sufficient portion of the section (or at specific intervals), the system delivers real-time traffic information to subsequent vehicles without requiring the probe vehicle to fully complete the section first, thus balancing data reliability with real-time information delivery.
3Device complexity
If traffic information is generated only after probe vehicle passage, then the system is simple to implement, but the information becomes past data that cannot assist current traffic flow
Solution Approach 1:
The system performs preliminary calculation of passage time and generates traffic information predictions before the probe vehicle completes its passage through the intersection. This allows subsequent vehicles to receive timely traffic information that reflects current conditions rather than historical data, improving the timeliness and usefulness of the information while maintaining relatively simple system implementation.
Data Source
AI summary
A system and a method for generating traffic information are provided. The system for generating traffic information includes a vehicle that obtains a location and a surrounding image in real time, and a server that receives the location and the surrounding image from the vehicle, and calculates a time required to pass through a specified section and an average speed passing through the specified section based on the location and the surrounding image from the vehicle.