Estimation of Design Lengths of Left-Turn Lanes
This study is to evaluate the simulation-based and analytical-based methods for determining the left-turn lane queue storage length and deceleration length. Four traffic models were selected to estimate left-turn queue length, including analytical-based models [i.e., Highway Capacity Software (HCS+) and Synchro] and simulation-based models (i.e., SimTraffic and VISSIM). Recommendations were given on the basis of the accuracy levels and the costs of these models in terms of time. A simulation-based method for determining the required deceleration length was developed by using VISSIM. The results from this method were compared with different agencies’ guidelines, which were developed by analytical-based methods. A procedure is recommended in this paper for estimating the total left-turn length on the basis of the estimated queue storage length and the deceleration length.
- Record URL:
-
Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
-
Supplemental Notes:
- Copyright © 2012 American Society of Civil Engineers
-
Authors:
- Qi, Yi Grace
- Guo, Lei
- Yu, Lei
- Teng, Hualiang
- Publication Date: 2012-3-1
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 274-283
-
Serial:
- Journal of Transportation Engineering
- Volume: 138
- Issue Number: 3
- Publisher: American Society of Civil Engineers
- ISSN: 0733-947X
- Serial URL: https://ascelibrary.org/journal/jtepbs
Subject/Index Terms
- TRT Terms: Deceleration; Geometric design; Left turn lanes; Traffic models; Traffic queuing; Traffic simulation
- Subject Areas: Design; Highways; Operations and Traffic Management; I20: Design and Planning of Transport Infrastructure; I72: Traffic and Transport Planning;
Filing Info
- Accession Number: 01375811
- Record Type: Publication
- Files: TRIS, ASCE, ATRI
- Created Date: Jul 18 2012 4:12PM