TY  - JOUR
T1  - Evaluation of the Performance of using Different Unconventional Intersections at Highly
Congested Intersections. Case Study: Amman/Jordan
AU - Al-Mashaikh, Bara’h AU - Abojaradeh, Mohammad AU - Al-Battah, Mahmoud 
JO  - Journal of Engineering and Applied Sciences
VL  - 15
IS  - 19
SP  - 3374
EP  - 3384
PY  - 2020
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2020.3374.3384
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2020.3374.3384
KW  - Bowtie intersection
KW  -continuous green T-intersection
KW  -Jug-Handle intersection
KW  -measurement of effectiveness
KW  -Micro-simulation
KW  -single quadrant roadway
KW  -traffic operational performance
KW  -unconventional
intersections
AB  - The main purpose in this study is to attempt to
improve the operational performance of highly congested
urban arterial intersections by using Unconventional
Arterial Intersection Designs (UAIDs) as a solution of
congestion intersections. Also, to make comparison
between the operational performance of the current
situation and the proposed unconventional solutions. In
this study signal timing optimization was used as an initial
solution before doing any modification on the geometric
design. Then, testing the effect of implementing some
types of UAIDs including single quadrant, jug-handle,
bowtie and Continuous Green T-Intersection (CGTI) as
suggested solutions for three highly congested urban
arterial intersections in Amman, Jordan. By using
microscopic simulation software, Synchro studio 9 with
Sim Traffic and using a real traffic data for each
intersection. For the purpose of this study the selected
intersections were two of four-legged intersection type;
Alaqsa Intersection and Ebad Alrahman Intersection and
one of three-legged intersection type; Abu Hdeeb
Intersection where all of them are complicated
intersections. The analysis revealed that the proposed
UAIDs succeeded in improving the current intersections
where the Level of Service (LOS) improved to be C using
Single Quadrant and B using Jug-handle at Alaqsa
Intersection, LOS B using Bow-tie at Ebad Alrahman
Intersection and LOS D using Continuous Green
T-intersection at Abu Hdeeb Intersection.
ER  -