TY  - JOUR
PY  - 2016//
TI  - Estimation of critical gap of U-turns road in Turkey
JO  - Journal of transportation technologies (Irvine, Calif.)
A1  - Haştemoğlu, Hasan
SP  - 131
EP  - 138
VL  - 6
IS  - 3
N2  - Short Retraction Notice The article has been withdrawn due to committing plagiarism. This article has been retracted to straighten the academic record. In making this decision the Editorial Board follows COPE's Retraction Guidelines. The aim is to promote the circulation of scientific research by offering an ideal research publication platform with due consideration of internationally accepted standards on publication ethics. The Editorial Board would like to extend its sincere apologies for any inconvenience this retraction may have caused. Editor guiding this retraction: Prof. Kim, Tschangho John (EiC of JTTs) The full retraction notice in PDF is preceding the original paper, which is marked "RETRACTED".     Original abstract:    The estimation of critical gap is an important traffic parameter and this is useful to estimate the capacity of U-turning vehicles at uncontrolled median openings. In this study critical gap is estimated by four different methods by collecting data at seven median openings in Turkey. An unconventional method of critical gap estimation using the merging time of the U-turning vehicle is proposed. The merging time to clear the conflict area at uncontrolled median opening was calculated from field data and this time is utilized to estimate the critical gap for different categories of vehicle.<p />  <p>Language: en</p>
LA  - en
SN  - 2160-0473
UR  - http://dx.doi.org/10.4236/jtts.2016.63012
ID  - ref1
ER  -