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MuTraff: A Smart-City Multi-Map Traffic Routing Framework.
Alvaro Paricio1, Miguel Angel Lopez-Carmona1
1Departamento de Automática, Campus Universitario Universidad de Alcala, Ctra. Madrid-Barcelona, km. 33.600, Alcalá de Henares, 28805 Madrid, Spain.
The MuTraff framework enhances urban traffic routing by distributing customized traffic maps to vehicles. This approach improves scalability, reduces communication complexity, and enhances privacy in intelligent transportation systems.
Area of Science:
- Intelligent Transportation Systems
- Urban Planning
- Computer Science
Background:
- Urban traffic routing presents significant challenges for intelligent transportation systems.
- Current systems face issues with scalability, communication complexity, and privacy concerns.
- Drivers often must reveal sensitive trip details in existing traffic management systems.
Purpose of the Study:
- To introduce an innovative urban traffic routing framework and reference architecture, the multimap traffic control architecture (MuTraff).
- To address the limitations of existing traffic management systems by balancing map generation and distribution with decentralized routing computation.
- To improve scalability, reduce communication overhead, and enhance user privacy in urban traffic management.
Main Methods:
- Developed the MuTraff framework, utilizing a set of traffic weighted multimaps (TWMs).
- Each TWM in a set shares the same network topology but features distinct link weights tailored to specific vehicle categories or fleets.
- Traffic control centers generate and distribute TWMs, while routing computations are performed on the vehicles.
Main Results:
- MuTraff demonstrates improved scalability and reduced communication complexity compared to traditional systems.
- The framework effectively addresses privacy issues by decentralizing routing computations.
- Case studies in a real city environment validated its effectiveness for global congestion management, incident response, and emergency fleet routing.
Conclusions:
- MuTraff offers a promising foundation for next-generation traffic management systems.
- The framework is easy to deploy and compatible with existing traffic management systems.
- The strategic generation and distribution of tailored traffic maps represent a significant advancement in intelligent transportation.

