A Comparison of Some Methods for Measuring Vehicular Delay at Signalized Intersections
Author: Donald Stilwell Berry
Publisher:
Published: 1954
Total Pages: 42
ISBN-13:
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Author: Donald Stilwell Berry
Publisher:
Published: 1954
Total Pages: 42
ISBN-13:
DOWNLOAD EBOOKAuthor: W. R. Reilly
Publisher:
Published: 1976
Total Pages: 176
ISBN-13:
DOWNLOAD EBOOKFindings are presented relating to the design of a simple yet accurate technique for measurement of vehicular delay on the approach to a signalized intersection. Precise definitions were established for four measures of performance; stopped delay, time in queue delay, approach delay, and percent of vehicles stopping. Approach delay was selected as being the most representative of intersection efficiency. Four manual methods were tested in the laboratory using film taken at 10 intersections. The values thus obtained were statistically compared with true values from time-lapse photography. The point sample, stopped delay procedure, and the percent of vehicles stopping method were selected as the most promising methods for practical use and were performed in the field at three sites.
Author: W. R. Reilly
Publisher:
Published: 1976
Total Pages: 76
ISBN-13:
DOWNLOAD EBOOKFindings are presented relating to the design of a simple yet accurate technique for measurement of vehicular delay on the approach to a signalized intersection. Precise definitions were established for four measures of performance; stopped delay, time in queue delay, approach delay, and percent of vehicles stopping. Approach delay was selected as being the most representative of intersection efficiency. Four manual methods were tested in the laboratory using film taken at 10 intersections. The values thus obtained were statistically compared with true values from time-lapse photography. The point sample, stopped delay procedure, and the percent of vehicles stopping method were selected as the most promising methods for practical use and were performed in the field at three sites.
Author: W. R. Reilly
Publisher:
Published: 1976
Total Pages: 214
ISBN-13:
DOWNLOAD EBOOKFindings are presented relating to the design of a simple yet accurate technique for measurement of vehicular delay on the approach to a signalized intersection. Precise definitions were established for four measures of performance; stopped delay, time in queue delay, approach delay, and percent of vehicles stopping. Approach delay was selected as being the most representative of intersection efficiency. Four manual methods were tested in the laboratory using film taken at 10 intersections. The values thus obtained were statistically compared with true values from time-lapse photography. The point sample, stopped delay procedure, and the percent of vehicles stopping method were selected as the most promising methods for practical use and were performed in the field at three sites.
Author: Wassim Kebab
Publisher:
Published: 2006
Total Pages: 42
ISBN-13:
DOWNLOAD EBOOKAuthor: National Research Council (U.S.). Highway Research Board. Annual Meeting
Publisher:
Published: 1956
Total Pages: 878
ISBN-13:
DOWNLOAD EBOOKAuthor: W. R. Reilly
Publisher:
Published: 1976
Total Pages: 0
ISBN-13:
DOWNLOAD EBOOKFindings are presented relating to the design of a simple yet accurate technique for measurement of vehicular delay on the approach to a signalized intersection. Precise definitions were established for four measures of performance; stopped delay, time in queue delay, approach delay, and percent of vehicles stopping. Approach delay was selected as being the most representative of intersection efficiency. Four manual methods were tested in the laboratory using film taken at 10 intersections. The values thus obtained were statistically compared with true values from time-lapse photography. The point sample, stopped delay procedure, and the percent of vehicles stopping method were selected as the most promising methods for practical use and were performed in the field at three sites.
Author: Mitsuru Saito
Publisher:
Published: 2011
Total Pages: 110
ISBN-13:
DOWNLOAD EBOOKCurrently there are several methods to measure the performance of surface streets, but their capabilities in dynamically estimating vehicle delay are limited. The objective of this research is to develop a method to automate traffic delay estimation in real-time using existing field traffic data collection technologies. This research has focused on method and algorithm development that can be applied to existing technologies. Two algorithms were developed to run automatically using Microsoft Excel and Visual Basic to calculate traffic delay from data collected from existing vehicle detection. The algorithms were developed using computer modeling software to simulate different lane configurations. The lane configurations tested were through-only lanes, through lanes with a midblock driveway, and through lanes with a turning bay. Different levels of volumes were simulated for each of the lane configurations. Results were promising for each lane configuration. The through-only configuration showed excellent results with maximum errors less than 3 seconds per vehicle for each test. The through lanes with the driveways test was evaluated using added detection at the driveway locations and no detection at the driveways. Results using the driveway sensors had 93 percent of the calculated average delays with less than 5 seconds per vehicle of error. Results without the driveway sensors had 84 percent of the calculated average delays with less than 5 seconds of error. Results for the turning bay configuration had 94 percent of the calculated turning bay results with less than 5 seconds per vehicle of error. It is recommended to conduct a hardware-in-loop analysis to make certain the algorithms developed in this study perform as expected in a dynamic operation.
Author: ITE (Institute of Transportation Engineers)
Publisher: John Wiley & Sons
Published: 2016-01-26
Total Pages: 688
ISBN-13: 1118762304
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