Abstract
Intelligent Transportation Systems (ITSs) utilize Vehicular Ad-hoc Networks (VANETs) to collect, disseminate, and share data with the Traffic Management Center (TMC) and different actuators. Consequently, packet drop and delay in VANETs can significantly impact ITS performance. Feedback-based eco-routing (FB-ECO) is a promising ITS technology, which is expected to reduce vehicle fuel/energy consumption and pollutant emissions by routing drivers through the most environmentally friendly routes. To compute these routes, the FB-ECO utilizes VANET communication to update link costs in real-time, based on the experiences of other vehicles in the system. In this paper, we study the impact of vehicular communication on FB-ECO navigation performance in a large-scale real network with realistic calibrated traffic demand data. We conduct this study at different market penetration rates and different congestion levels. We start by conducting a sensitivity analysis of the market penetration rate on the FB-ECO system performance, and its network-wide impacts considering ideal communication. Subsequently, we study the impact of the communication network on system performance for different market penetration levels, considering the communication system. The results demonstrate that, for market penetration levels less than 30%, the eco-routing system performs adequately in both the ideal and realistic communication scenarios. It also shows that, for realistic communication, increasing the market penetration rate results in a network-wide degradation of the system performance.
Highlights
Intelligent Transportation Systems (ITSs) use networked sensors, microchips, and communication technologies to collect, process, and disseminate information about the state of the transportation system
The ideal communication case, that assumes a perfect communication performance; and the realistic communication modeling case, in which we model Vehicular Ad-hoc Networks (VANETs) communication and study its impact on the system performance
We developed a communication model for VANETs and modified the eco-routing navigation technique to account for the communication network performance, and to capture the impact of packet drop and delay on the feedback based eco-routing system
Summary
Intelligent Transportation Systems (ITSs) use networked sensors, microchips, and communication technologies to collect, process, and disseminate information about the state of the transportation system. A higher packet drop rate leads to a lack of link cost updates at the TMC, causing the TMC to route vehicles through sub-optimal routes, resulting in higher fuel consumption Another example, which is an important bidirectional interaction between communication and transportation, is that the packet drop rate becomes higher and the delay becomes longer in congested road networks, which leads to losing more updating packets and a resultant larger deviation from the best routes. This bidirectional interdependency creates a loop of mutual influence between communication and transportation systems [5] that increases the complexity (and, the analysis) of these systems.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
