Enhancing Sustainable Mobility: A Comparative Analysis of C-ITS and Fundamental Diagram-Based Traffic Jam Detection

Angelo Coppola (), Luca Di Costanzo and Andrea Marchetta
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Angelo Coppola: Department of Civil, Building and Environmental Engineering, University of Naples Federico II, 80125 Naples, Italy
Luca Di Costanzo: Department of Civil, Building and Environmental Engineering, University of Naples Federico II, 80125 Naples, Italy
Andrea Marchetta: Department of Civil, Building and Environmental Engineering, University of Naples Federico II, 80125 Naples, Italy

Sustainability, 2025, vol. 17, issue 18, 1-22

Abstract: Traffic congestion is a primary obstacle to sustainable mobility, leading to increased fuel consumption, harmful emissions, and significant economic losses. Effective and timely congestion detection is therefore a critical enabler for proactive traffic management strategies that can mitigate these negative impacts. This study contributes to this goal by conducting a rigorous comparative analysis of two key detection paradigms: a modern, vehicle-centric approach using a Cooperative Intelligent Transportation Systems (C-ITS) service, and a traditional, infrastructure-based method relying on the fundamental diagram (FD). Using a comprehensive simulation campaign on a bottleneck scenario, we evaluate the performance of both methods under various conditions. The results demonstrate that while the FD-based method can offer faster detection under optimal sensor placement for severe events, the C-ITS approach provides fundamentally greater spatial flexibility and reliability across a wider range of congestion severities. Our techno-economic analysis further reveals that the paradigms rely on distinct investment models, with C-ITS offering superior scalability and a promising path toward network-wide coverage. This highlights the complementary nature of the two approaches and underscores the potential of C-ITS as a key technology to support dynamic, efficient, and sustainable transportation networks.

Keywords: sustainable mobility; C-ITS; congestion detection; traffic management (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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