Mitigating Congestion at Sags with Adaptive Cruise Control Systems
- 1 September 2015
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE) in 2015 IEEE 18th International Conference on Intelligent Transportation Systems
- p. 2451-2457
- https://doi.org/10.1109/itsc.2015.395
Abstract
Sags are segments of the road where there is a significant change in gradient from downhill to uphill in a short distance. Empirically, it has been observed that drivers do not compensate adequately for the changing grade resistance force at sags, which limits vehicle acceleration. As a consequence, congestion forms at sags. This paper proposes and compares the implementation of Adaptive Cruise Control (ACC), Traffic State-Adaptive ACC (TSA-ACC), and Cooperative ACC (CACC) at sags. The controllers are implemented in a traffic simulation environment with a single-lane road stretch and a platoon of 200 vehicles of which 10% follow the movements set by the controller and 90% follow the normal driving rules. The simulation results show that all controllers reduce the travel time of the equipped vehicles and have significantly positive effects on the total travel time of the platoon. TSA-ACC produces the most travel time savings. The findings of this paper show that the proposed controllers can be used to improve the performance of traffic flow at sags.Keywords
This publication has 11 references indexed in Scilit:
- Rolling horizon control framework for driver assistance systems. Part II: Cooperative sensing and cooperative controlTransportation Research Part C: Emerging Technologies, 2014
- Rolling horizon control framework for driver assistance systems. Part I: Mathematical formulation and non-cooperative systemsTransportation Research Part C: Emerging Technologies, 2014
- Mainstream Traffic Flow Control at SagsTransportation Research Record: Journal of the Transportation Research Board, 2014
- Impacts of Cooperative Adaptive Cruise Control on Freeway Traffic FlowTransportation Research Record: Journal of the Transportation Research Board, 2012
- Analysis of Car-following Behavior on Sag and Curve Sections at Intercity Expressways with Driving SimulatorInternational Journal of Intelligent Transportation Systems Research, 2011
- Lane changing patterns of bane and benefit: Observations of an uphill expresswayTransportation Research Part B: Methodological, 2011
- Adaptive cruise control design for active congestion avoidanceTransportation Research Part C: Emerging Technologies, 2008
- Traffic flow effects of Integrated full-Range Speed Assistance (IRSA)2007 IEEE Intelligent Vehicles Symposium, 2007
- The Impact of Cooperative Adaptive Cruise Control on Traffic-Flow CharacteristicsIEEE Transactions on Intelligent Transportation Systems, 2006
- Traffic Flow on Freeway UpgradesTransportation Research Record: Journal of the Transportation Research Board, 2004