01015537

Component

https://doi.org/10.3141/1920-04

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

Two-way stop control is a form of intersection operation in widespread use. Calculations of the level of service are usually based on gap acceptance theory. In the American "Highway Capacity Manual," the influence of pedestrians is considered an impedance factor, whereas in the German guideline the influence of pedestrians and bicyclists has not been considered so far. To close this gap, an alternative calculation method, called the conflict technique, has been developed. This method allows consideration of the influence of nonmotorized road users on the traffic performance of motor vehicles. Moreover, the method provides a significant simplification of the entire theoretical approach. Different modalities of operation, such as a zebra crossing at the entries to an intersection, can be considered, as can the fact that some road users do not comply with the priority rules. It is possible to calculate the capacity for one movement from the minor stream from a single equation. To calibrate the calculation method, traffic at several intersections was observed by video and analyzed for traffic volumes, delays, compliance with priority rules, and other parameters. With these field measurements, the calculation method was calibrated to actual road-user behavior. Comparison of the conventional calculation concept based on gap acceptance and the new conflict technique showed that they provide similar results. In particular, the consideration of pedestrians and limited priority effects is a considerable benefit of the new method.

01015530

English

pp 32-40

2005

Transportation Research Record: Journal of the Transportation Research Board

0309093937

Print

Figures (10) ; References (10) ; Tables (2)

Calculation; Calibration; Compliance; Cyclists; Gap acceptance; Highway capacity; Level of service; Pedestrians; Right of way (Traffic); Traffic delays; Traffic volume; Unsignalized intersections; Videotapes

Two way stop controlled intersections

Germany

Highways; Operations and Traffic Management; Pedestrians and Bicyclists; I71: Traffic Theory

TRIS, TRB, ATRI

Jan 17 2006 10:19AM

• 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
• 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
• Modeling of Delay Induced by Downstream Traffic Disturbances at Signalized Intersections
• Variability of Peak Hour Factor at Intersections
• Video Simulation of Pedestrian Crossings at Signalized Intersections