Abstract
With the spread of connected vehicles (CVs), a growth of novel information services exploiting data transmitted by CVs is expected. Wireless communication systems, in particular in vehicular applications, operate with a varying level of transmission reliability, which may affect the quality of V2X-data-driven intelligent transport systems (ITS). Therefore, the performance of ITS should be evaluated in a variety of conditions and the configuration of parameters should be fine-tuned in a safe testbed, using computer simulations. A simple framework is presented, which couples VISSIM traffic simulation and OMNeT++ communication networks simulation in real time, enabling an assessment of the relationship between a communication reliability and transport service quality. A functionality of the framework is demonstrated by applying it to a scheme controlling signalized intersections while estimating traffic flows from the V2I data.
Highlights
As the population grows, so does the road congestion in urban areas and this trend is expected to continue in the near future
The traffic control algorithm relies on received input data from the connected vehicles (CVs), the performance of the communication network is expected to have an impact on the traffic control efficiency
To facilitate the use of existing calibrated traffic models implemented in the VISSIM for CV simulations, a simulation framework was proposed and implemented, coupling the VISSIM traffic simulator and OMNeT++ communication networks simulator
Summary
Does the road congestion in urban areas and this trend is expected to continue in the near future. One of the promising near future solutions is the utilization of traffic data from connected vehicles (CVs) for a more advanced and efficient traffic control. Several studies investigate communication networks performance in connected vehicles environment [5,6] and while the effect of information transmission quality on vehicles’ routing decisions in a signalized urban network has been investigated [7], the direct, real-time impact of imperfect communication on traffic control decisions at signalized intersections is less studied. The developed test bed/framework may provide some valuable insights into an impact of imperfect communication on, for example, signal traffic control performance in connected vehicles environment and possible ways to decrease the. C24 sensitivity of the control algorithm to communication faults, or warning applications such as notification of the CV drivers about an approaching emergency vehicle [8]
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