01015541

Component

https://doi.org/10.3141/1920-13

http://scholar.google.com...bdeh&publication_year=2005

Macroscopic models that can be used to estimate the delay at signalized intersections caused by downstream traffic disturbances, such as queues in closely spaced settings, are presented. The models use basic traffic flow properties and control parameters at neighboring intersections. The models are applied to a hypothetical two-signal system. The results show that the delay caused by downstream disturbances can be significant and therefore must be included in level-of-service and capacity analyses. The results also show that control parameters, such as offsets and green splits at upstream and downstream approaches, play key roles in reducing delay. Validation by the use of microscopic traffic simulation shows close agreement between the delay estimates from the proposed models and that from the microscopic simulation model.

01015530

English

pp 106-117

2005

Transportation Research Record: Journal of the Transportation Research Board

0309093937

Print

Figures (9) ; References (15)

Highway capacity; Level of service; Microsimulation; Signalized intersections; Traffic delays; Traffic models; Traffic queuing; Validation

Macroscopic models

Highways; Operations and Traffic Management; I71: Traffic Theory

TRIS, TRB, ATRI

Jan 17 2006 3:20PM

• Arrival-Based Uniform Delay Model for Oversaturated Signalized Intersections with Poor Progression
• Calibrating and Validating Deterministic Traffic Models: Application to "Highway Capacity Manual" Control Delay at Signalized Intersections
• Capacity at Intersections Without Traffic Signals
• Comparison of Methods for Sensitivity and Uncertainty Analysis of Signalized Intersections Analyzed with the "Highway Capacity Manual"
• Driver Assessment of Service Quality on Urban Streets
• Effect of Lane Width on Speeds of Cars and Heavy Vehicles in Work Zones
• Effect of Pedestrian-Related Factors on Intersection Performance
• Effects of Parameter Distributions and Correlations on Uncertainty Analysis of "Highway Capacity Manual" Delay Model for Signalized Intersections
• Effects of U-Turns on Capacities of Signalized Intersections
• Headway Compression During Queue Discharge at Signalized Intersections
• Interchange Critical Movement Analysis for Planning and Preliminary Design Applications
• Methodology for Evaluating the Operational Performance of Interchange Ramp Terminals
• Variability of Peak Hour Factor at Intersections
• Video Simulation of Pedestrian Crossings at Signalized Intersections