Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The Minimum Yellow Timing for Ramp Meters
The minimum Yellow timing is an important timing factor that affects metering rate for multiple-vehicle-per-green, such as two-vehicle-per-green, type of operations. In review of the current ramp meter timing practices, it was found that the minimum Yellow timing does not consider the dilemma zone issue for the approaching motorists, and therefore may lead to red-light running. An analytic framework was developed to determine the minimum Yellow timing by integrating the ramp meter timing logic and dilemma zone removal practices. Factors such as roadway geometry, driver and vehicle characteristics, and detector layout are considered. For two-vehicle-per-green type of operations, an evaluation indicated that the minimum Yellow should be timed around 3.6 seconds to consider the situation when the 2nd vehicle is approaching. Such a long but necessary minimum Yellow timing will increase the minimum cycle length to about 7.7 seconds and hence reduce the release capacity by about 10%.
The Minimum Yellow Timing for Ramp Meters
The minimum Yellow timing is an important timing factor that affects metering rate for multiple-vehicle-per-green, such as two-vehicle-per-green, type of operations. In review of the current ramp meter timing practices, it was found that the minimum Yellow timing does not consider the dilemma zone issue for the approaching motorists, and therefore may lead to red-light running. An analytic framework was developed to determine the minimum Yellow timing by integrating the ramp meter timing logic and dilemma zone removal practices. Factors such as roadway geometry, driver and vehicle characteristics, and detector layout are considered. For two-vehicle-per-green type of operations, an evaluation indicated that the minimum Yellow should be timed around 3.6 seconds to consider the situation when the 2nd vehicle is approaching. Such a long but necessary minimum Yellow timing will increase the minimum cycle length to about 7.7 seconds and hence reduce the release capacity by about 10%.
The Minimum Yellow Timing for Ramp Meters
Zhongren Wang, PhD, PE, TE (Autor:in) / Chiu Liu, PhD, PE, TE, PTOE, F. ASCE (Autor:in)
2014
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
Metadata by DOAJ is licensed under CC BY-SA 1.0
New Horizontal Equity Measure for Ramp Meters
| British Library Online Contents | 2016
Algorithm for Controlling Spillback from Ramp Meters
| British Library Online Contents | 1996
Balancing Efficiency and Equity of Ramp Meters
| Online Contents | 2005
Ramp Meters Evaluation: Using ITS Archived Data
| Online Contents | 2012
Ramp Meters Evaluation: Using ITS Archived Data
| ASCE | 2011