Adaptive ramp metering is designated to release on-ramp flow based on the level of congestion on the mainline freeway. This technique theoretically sounds to alleviate recurring and non-recurring congestions, but greatly relies on prompt on-ramp and mainline freeway traffic detections of speed and flow variations. However, the traditional fixed detectors are a barrier to the goal because of their incapability of quickly capturing the spatiotemporal patterns of congestion. With the emerging connected vehicle (CV) technology, it potentially provides a solution when the technology makes vehicles to become “floating sensors” that seamlessly cover the concerned highway over continuous time horizon. As a cost-effective, risk-free approach to quantitatively capture the CV-affected driver behaviors, the developed method is to explore the synthesis on the operation of ramp meters at a real-world freeway facility with CV support. The simulation results suggest positive benefits of improving freeway operation with ramp metering facility in CV environment.
Improving Freeway Operation with Ramp Metering Control Using Connected Vehicles as “Floating Sensors”
International Conference on Transportation and Development 2018 ; 2018 ; Pittsburgh, Pennsylvania
2018-07-12
Conference paper
Electronic Resource
English
Freeway Ramp Metering: An Overview
British Library Online Contents | 2002
|Freeway Ramp Metering: An Overview
Online Contents | 2002
|Freeway Ramp Metering: An Overview
British Library Conference Proceedings | 2000
|Freeway ramp metering: an overview
IEEE | 2000
|Freeway ramp metering: an overview
IEEE | 2002
|