http://www.iaeme.com/IJCIET/index.asp 2974 editor@iaeme.com International Journal of Civil Engineering and Technology (IJCIET) Volume 10, Issue 03, March 2019, pp. 2974–2987, Article ID: IJCIET_10_03_299 Available online at http://www.iaeme.com/ijmet/issues.asp?JType=IJCIET&VType=10&IType=3 ISSN Print: 0976-6308 and ISSN Online: 0976-6316 © IAEME Publication Scopus Indexed EVALUATION AND IMPROVEMENT OF RAMP JUNCTIONS ON MULTILANE URBAN ARTERIAL STREETS Majed Msallam Associate Professor, Civil Engineering, Al- Balqa' Applied University, Faculty of Engineering Technology (FET), Department of Civil Engineering, Amman-Jordan Basim Jrew Professor, Civil Engineering, Isra University, Amman-Jordan Raed Nazzal Al-Muhanna Assistant Professor, Civil Engineering, Isra University, Amman-Jordan Mohammed Jabbar Hussein MSc. in Engineering Project Management, Isra University, Amman-Jordan ABSTRACT Ramp-freeway junctions are almost designed to allow high-speed and high capacity merging and diverging with the minimum disruption to the adjacent traffic. One source of conflict on freeway weaving section, when the merge and diverge is short require vehicle to entering or exiting the freeway to execute it need one or more lane changes. The operational analysis of weaving, merging and diverging of ramp- junction in freeway are applicable at multilane highway. The objective of study is to evaluate and improve the existing ramp and ramp junction in urban area. The study conducted in Amman-Jordan for major known cloverleaf interchange. Two types of analysis are conducted, weaving and ramp-junction analysis using highway capacity manual of 2010 (HCM-2010) methodologies. The highway capacity software program (HCS-2010) is applied for analysis and improvement of the selected cloverleaf interchange as a case study. The result of the analysis for the existing condition shows that the interchange is operating at LOS F for the weaving area. The improvement results of short-term and medium-term for the weaving area, merging and diverging of the ramp-junction for the selectedinterchange will be operated at LOS D or LOS C. Key words: Freeway facilities, Multi-lane highway, Ramp and ramp-junction, Weaving area, Merging and diverging area, HCM-2010 methodology, HCS-2010 software.