NDLI: Evaluating the effect effects of U-turns on level of service of signalized intersections using synchro and SimTraffic

Content Provider	IEEE Xplore Digital Library
Author	Changjiang Zheng Pan Liu Lu, J.J. Hongyun Chen
Copyright Year	2009
Description	Author affiliation: School of Transportation, Southeast University, #2 Si Pai Lou, Nanjing, China, 210096 (Pan Liu) \|\| Department of Civil & Environmental Engineering, University of South Florida, 4202 E. Fowler Ave., ENB118, Tampa, 33620 USA (Lu, J.J.) \|\| Center for Urban Transportation Research, University of South Florida, 4202 E. Fowler Ave. CUT 110, Tampa, 33620, USA (Hongyun Chen) \|\| School of Transportation, Hohai University, #1 Xi Kang Road, Nanjing, China, 210098 (Changjiang Zheng)
Abstract	In this study, a procedure was developed to help transportation professionals evaluate the impacts of U-turns on level of service of signalized intersections using two widely used simulation packages: Synchro and SimTraffic. Two parameters related to U-turns were calibrated based on field data. They are (1) the saturation flow rate for U-turn and left-turn mixed traffic stream; and (2) the turning speeds for U-turning vehicles in the left-turn lane. The saturation flow rate was calculated based on the U-turn adjustment factors developed in a previous study. A linear regression model was developed for predicting the average turning speeds of U-turning vehicles at a signalized intersection given the turning radius provided at the left-turn bay. Delay reported by the calibrated Synchro and SimTraffic models was compared to the average control delay measured in the field. The effectiveness of parameter calibration differs for different signalized intersections. It was generally found that the calibrated Synchro and SimTraffic models provided reasonable delay estimates for U-turns at signalized intersections. With the calibrated and validated Synchro and SimTraffic models, sensitivity analysis was conducted to evaluate how the increased number of U-turning vehicles affects the level of service of signalized intersections. It was found that the sensitivity of the average control delay to changing U-turn volumes differs for different signalized intersections. The sensitivity analysis results suggest that the impacts of U-turns on the level of service of signalized intersections shall be evaluated on a case-by-case basis.
Starting Page	971
Ending Page	976
File Size	973395
Page Count	6
File Format	PDF
ISBN	9781424435036
ISSN	19310587
DOI	10.1109/IVS.2009.5164412
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-03
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Turning Vehicles Delay estimation Sensitivity analysis Transportation Packaging Traffic control Linear regression Predictive models Calibration Effects U-turn Simulation Signalized Intersection Synchro and SimTraffic
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effects of U-turns on capacity at signalized intersections and simulation of U-turning movement by synchro

Study on the left-turns organization methods at a signalized intersection

Research on the Impact of U-turn Location on Operation Efficiency at Intersection

Effect of U-Turns and Heavy Vehicles on the Saturation Flow Rates of Left-Turn Lanes at Signalized Intersections

Median u-turn design as an alternative treatment for left turns at signalized intersections conventional intersection.

Synchronization of signalised intersections: a case study of three major intersections on the 24th february road, kumasi, ghana.

Research of efficiency evaluation of U-turn lanes at Signalized Intersections

Modeling Delay at Signalized Intersections in Mixed Traffic Conditions

Study on Saturation Flow Rates for Signalized Intersections

Evaluating the effect effects of U-turns on level of service of signalized intersections using synchro and SimTraffic

Similar Documents

Effects of U-turns on capacity at signalized intersections and simulation of U-turning movement by synchro

Study on the left-turns organization methods at a signalized intersection

Research on the Impact of U-turn Location on Operation Efficiency at Intersection

Effect of U-Turns and Heavy Vehicles on the Saturation Flow Rates of Left-Turn Lanes at Signalized Intersections

Median u-turn design as an alternative treatment for left turns at signalized intersections conventional intersection.

Synchronization of signalised intersections: a case study of three major intersections on the 24th february road, kumasi, ghana.

Research of efficiency evaluation of U-turn lanes at Signalized Intersections

Modeling Delay at Signalized Intersections in Mixed Traffic Conditions

Study on Saturation Flow Rates for Signalized Intersections

Evaluating the effect effects of U-turns on level of service of signalized intersections using synchro and SimTraffic