PERCENT TIME-SPENT-FOLLOWING MODEL FOR SINGLE CARRIAGEWAY ROAD

Authors

  • Lee Vien Leong Universiti Sains Malaysia, 11800 USM Penang, Malaysia http://orcid.org/0000-0003-0798-4957
  • Shafida Azyanti Mohd Shafie Majlis Perbandaran Seberang Perai, Bandar Perda, 14000 Bukit Mertajam, Pulai Pinang, Malaysia
  • Wins Cott Goh Intelliroad Services, Lakeside B01b, 9020 Klagenfurt, Austria

DOI:

https://doi.org/10.11113/jt.v81.13575

Keywords:

Single carriageway road, percent time-spent-following, headway, vehicle platoon, opposing flow rate

Abstract

 

Percent time-spent following (PTSF) is an important parameter in determining level-of-service of a single carriageway road but the current performance measure adopted in Malaysia is based on volume over capacity (v/c) ratio. Therefore, this study aims to develop a new PTSF model that is suitable for single carriageway roads in Malaysia. Traffic flow at 32 sites in various states in Malaysia were recorded using CCTV and video camera. Image processing software was used to extract volume, speed and headway data. Surrogate measure which is the percentage of vehicles travelling with headway threshold values of 3.0 and 5.0 seconds were used in estimating PTSF in the field. Initially, the base PTSF (BPTSF) model was developed and subsequently used to develop six different PTSF models using headway threshold values of 3.0 and 5.0 seconds and different variables. Analyses and performance indicators showed that the model developed based on the headway threshold value of 5.0 seconds with the inclusion of percentage of no-passing zone, opposing flow rate and percentage of heavy vehicles is the best model. This model was determined as the best fit as it has the highest score of 15, which is the maximum score based on performance indicator analysis.

Author Biographies

  • Lee Vien Leong, Universiti Sains Malaysia, 11800 USM Penang, Malaysia

    Leong Lee Vien graduated with a Bachelor of Engineering degree (B.Eng (Hons)) from Universiti Sains Malaysia in year 1999.  She then furthered her studies and graduated with a Master of Science in Highway and Transportation Engineering in year 2000. Due to her great interests in the field of Traffic Engineering, she was offered to pursue doctorate degree and in year 2004, she graduated with a Ph.D. degree in Traffic Engineering in School of Civil Engineering, Universiti Sains Malaysia.  Currently, she is a Professional Engineer in Highway Engineering and Associate Professor in the School of Civil Engineering, Universiti Sains Malaysia.  She has over eleven years of experience in teaching, supervision, research and consultancy works. She has been invited as speakers in numerous technical workshops and seminars conducted by both government agencies and professional organization. She is actively involved in conducting research related to transport and traffic engineering. She has successfully completed numerous research projects obtained through government grants, presented research findings in countless conferences both conducted locally and internationally and published papers in both local and international journals. She has extensive experience as Project Manager in conducing traffic studies and traffic impact assessments with over forty successfully completed projects to date.

  • Shafida Azyanti Mohd Shafie, Majlis Perbandaran Seberang Perai, Bandar Perda, 14000 Bukit Mertajam, Pulai Pinang, Malaysia
    Penolong Pengarah Kejuruteraan (Lalulintas)
    Majlis Perbandaran Seberang Perai
  • Wins Cott Goh, Intelliroad Services, Lakeside B01b, 9020 Klagenfurt, Austria

    Engineer

    Intelliroad Services

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Published

2019-09-22

Issue

Vol. 81 No. 6: November 2019

Section

Science and Engineering

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Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.

How to Cite

PERCENT TIME-SPENT-FOLLOWING MODEL FOR SINGLE CARRIAGEWAY ROAD. (2019). Jurnal Teknologi, 81(6). https://doi.org/10.11113/jt.v81.13575