TY - GEN
T1 - A coordinated ramp metering algorithm for Minnesota's freeways based on density
AU - Geroliminis, N.
AU - Srivastava, A.
AU - Michalopoulos, Panos G
PY - 2010
Y1 - 2010
N2 - A new coordinated, traffic-responsive ramp metering algorithm has been designed for Minnesota's freeways based on density measurements, rather than flows. This is motivated in view of recent research indicating that the critical value of density at which capacity is observed is less sensitive and more stable than the value of capacity, thereby resulting in more effective control. The main goals of the algorithm are to delay the onset of the breakdown and to accelerate system recovery when ramp metering is unable due to the violation of maximum allowable ramp waiting time. The effectiveness of the new control strategy is being assessed by comparison with the currently deployed version of the Stratified Zone Algorithm (SZM) through microscopic simulation of a real 12-mile, 17 ramp freeway section. Simulations show an improvement of 3-5% in the overall delays and avoidance of the maximum ramp delay violations.
AB - A new coordinated, traffic-responsive ramp metering algorithm has been designed for Minnesota's freeways based on density measurements, rather than flows. This is motivated in view of recent research indicating that the critical value of density at which capacity is observed is less sensitive and more stable than the value of capacity, thereby resulting in more effective control. The main goals of the algorithm are to delay the onset of the breakdown and to accelerate system recovery when ramp metering is unable due to the violation of maximum allowable ramp waiting time. The effectiveness of the new control strategy is being assessed by comparison with the currently deployed version of the Stratified Zone Algorithm (SZM) through microscopic simulation of a real 12-mile, 17 ramp freeway section. Simulations show an improvement of 3-5% in the overall delays and avoidance of the maximum ramp delay violations.
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U2 - 10.1109/ITSC.2010.5625243
DO - 10.1109/ITSC.2010.5625243
M3 - Conference contribution
AN - SCOPUS:78650499426
SN - 9781424476572
T3 - IEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC
SP - 1456
EP - 1461
BT - 13th International IEEE Conference on Intelligent Transportation Systems, ITSC 2010
T2 - 13th International IEEE Conference on Intelligent Transportation Systems, ITSC 2010
Y2 - 19 September 2010 through 22 September 2010
ER -