Communications in Science and Technology
Vol 3 No 2 (2018)

A mini review on percent time-spent-following (PTSF) as the service measure for two-lane highways

Rama Rizana (KFUPM)
Wael Alhajyaseen (Qatar Transportation and Traffic Safety Center. College of Engineering, Qatar Universit)



Article Info

Publish Date
25 Dec 2018

Abstract

Percent Time Spent Following (PTSF) is used by the Highway Capacity Manual (HCM) as one of the service measures to assess the level-of-service of two-lane highways since the 2000 edition. But, the problem facing to estimate this parameter is that the difficulty to measure it directly in the field. From several studies, it is known that the HCM analytical procedures applied in PTSF estimation produces inconsistent results with the 3 s surrogate measure and most of them are overestimate. This paper presents a review on estimating PTSF on two-lane highways from several studies that adopted HCM procedures.

Copyrights © 2018






Journal Info

Abbrev

cst

Publisher

Subject

Engineering

Description

Communication in Science and Technology [p-ISSN 2502-9258 | e-ISSN 2502-9266] is an international open access journal devoted to various disciplines including social science, natural science, medicine, technology and engineering. CST publishes research articles, reviews and letters in all areas of ...