Adaptive Multi-Region MFD Traffic Management
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Solution Overview
Problem
Current traffic congestion control methods using Macroscopic Fundamental Diagrams (MFDs) face challenges in managing large-scale traffic systems due to increasing metropolitan areas and dynamic road conditions, making it difficult to efficiently divert traffic and reduce congestion.
Innovation Solution
A system that dynamically partitions a traffic network into smaller regions based on real-time traffic conditions, generates MFDs for each region, and adjusts routing algorithms to reduce demand in congested areas by transmitting routing instructions to connected vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traffic network is managed as a single large region using MFD, then overall traffic monitoring is achieved, but congestion identification precision deteriorates
Solution Approach 1:
The patent divides the large metropolitan traffic network into multiple smaller sub-regions, each with its own MFD. This segmentation allows for more precise congestion identification in specific areas while maintaining overall network-wide traffic monitoring capability. Each sub-region's MFD captures local traffic dynamics that would be averaged out in a single large-region MFD.
2Productivity
If routing instructions are transmitted to all vehicles in the geographic area, then traffic diversion effectiveness is improved, but communication load increases
Solution Approach 1:
The patent transmits routing instructions selectively to vehicles based on their location, destination, and the identified congested sub-region. Rather than broadcasting to all vehicles in the geographic area, the system targets communications to vehicles that would actually benefit from diversion, reducing unnecessary communication load while maintaining effective traffic diversion where needed.
Data Source
AI summary
An example operation includes one or more of receiving traffic data uploaded from vehicles that are currently operating within a geographic area via a computer network, generating a plurality of macroscopic fundamental diagrams (MFDs) for a plurality of sub-areas within the geographic area, respectively, based on the received traffic data, identifying a sub-area among the plurality of sub-areas which is congested based on the plurality of MFDs, and transmitting routing instructions to the vehicles within the geographic area to divert the vehicles away from the sub-area.