Interoperability for intelligent traffic management systems in smart cities

Alanazi, Fayez; Alenezi, Mamdouh · 2024 · Crossref

DOI: 10.11591/ijece.v14i2.pp1864-1874

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Summary

This paper addresses the critical challenge of achieving seamless interoperability in Intelligent Traffic Management Systems (ITMS) within smart cities. The authors argue that while ITMS are essential for enhancing transportation efficiency, safety, and sustainability, their potential is limited by the lack of universal open standards. This fragmentation prevents diverse devices, services, and stakeholders from communicating effectively. The study aims to provide a comprehensive framework for understanding interoperability requirements, identifying associated challenges, and proposing potential standards to facilitate the integration of heterogeneous systems. The research employs a conceptual and analytical approach, categorizing interoperability into five distinct dimensions: syntactic, semantic, network, middleware, and security. The authors examine the specific conditions and requirements for each category. Syntactic interoperability focuses on consistent data formats and interfaces; semantic interoperability addresses the interpretation of data models across domains; network interoperability concerns communication protocols and infrastructure compatibility; middleware interoperability involves the software platforms linking devices and services; and secure interoperability ensures data privacy, integrity, and access control. The paper also reviews existing standards, such as ISO 20078, ETSI TR 103 576-2, IEEE 1609, SAE J2735, and NTCIP, comparing their data formats and communication protocols to highlight the current landscape of standardization. The findings are illustrated through three case studies demonstrating the practical benefits of interoperability. First, the Netherlands’ ITMS is presented as a model of success, utilizing open standards like DATEX II and SAE J2735 to enable real-time traffic management, incident detection, and vehicle-to-infrastructure communication. This system achieved scalability, cost-effectiveness, and reduced emissions. Second, the MutuaLink interoperability platform is examined for its role in traffic incident management, showing how it facilitates real-time information sharing between disparate agencies, thereby reducing clearance times and minimizing secondary collisions. Third, the study highlights how interoperability platforms improve collaboration and coordination among responding personnel, enhancing situational awareness and decision-making during emergencies. The significance of this research lies in its emphasis on the necessity of standardization and multi-stakeholder collaboration to advance smart city development. The authors conclude that addressing interoperability challenges is vital for optimizing ITMS performance, ensuring the safe integration of emerging technologies like autonomous vehicles, and creating sustainable urban environments. By adopting open standards and robust security frameworks, cities can achieve more efficient, resilient, and livable transportation networks. The paper serves as a guide for policymakers, urban planners, and technology providers to prioritize interoperability in future ITMS implementations.

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