Free-Flow Speed For Four-Lane Highways With Level Terrain In Rural And Suburban Areas In Peninsular Malaysia

Free-flow speed plays an important role in determining the highway performance of four-lane highways. The main objective of this study is to determine the appropriate models of free-flow speed on uninterrupted four-lane highways based on local traffic conditions in Malaysia. To carry out this study,...

Full description

Saved in:

Bibliographic Details
Main Author:	Azai, Tuti Azmalia
Format:	Thesis
Language:	English
Published:	2013
Subjects:	TA1-2040 Engineering (General) Civil engineering (General)
Online Access:	http://eprints.usm.my/46289/1/Tuti%20Azmalia%20Binti%20Azai24.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-usm-ep.46289
record_format	uketd_dc
spelling	my-usm-ep.462892020-02-20T03:37:46Z Free-Flow Speed For Four-Lane Highways With Level Terrain In Rural And Suburban Areas In Peninsular Malaysia 2013-12 Azai, Tuti Azmalia TA1-2040 Engineering (General). Civil engineering (General) Free-flow speed plays an important role in determining the highway performance of four-lane highways. The main objective of this study is to determine the appropriate models of free-flow speed on uninterrupted four-lane highways based on local traffic conditions in Malaysia. To carry out this study, data was collected at 16 sites (64 lanes) around Peninsular Malaysia. CCTV was used to collect field data and the collected data was reduced using TRAISTM Advanced SRM 3.2 software. Statistical analysis by SPSS 20 software was used to analyze the data of free-flow speed. Freeflow speed in each lane was measured using three methods which are based on linear speed-density relationship (Greenshield, 1935) which is Method 1, average speed of vehicles during low flow rate (U.S. HCM, 2000) which is Method 2 and average speed with headway ≥ 8 s which is Method 3. The results showed that the mean freeflow speed between Method 1, 2 and 3 was found to be not significantly different. Subsequently, multiple linear regression techniques was used to derive predictive free-flow speed models. The developed regression model showed good correlation with high value of coefficient of determination, R2. In addition, performance indicator (PI) showed that the model which is based on free-flow speed of cars with headway ≥ 8 s was selected as the most suitable model to be used in Malaysia roadway condition. Finally, sensitivity analysis showed that free-flow speed tended to be lower during worst geometrical conditions and lane width was the most sensitive parameter compared with other parameters. 2013-12 Thesis http://eprints.usm.my/46289/ http://eprints.usm.my/46289/1/Tuti%20Azmalia%20Binti%20Azai24.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Awam
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TA1-2040 Engineering (General) Civil engineering (General)
spellingShingle	TA1-2040 Engineering (General) Civil engineering (General) Azai, Tuti Azmalia Free-Flow Speed For Four-Lane Highways With Level Terrain In Rural And Suburban Areas In Peninsular Malaysia
description	Free-flow speed plays an important role in determining the highway performance of four-lane highways. The main objective of this study is to determine the appropriate models of free-flow speed on uninterrupted four-lane highways based on local traffic conditions in Malaysia. To carry out this study, data was collected at 16 sites (64 lanes) around Peninsular Malaysia. CCTV was used to collect field data and the collected data was reduced using TRAISTM Advanced SRM 3.2 software. Statistical analysis by SPSS 20 software was used to analyze the data of free-flow speed. Freeflow speed in each lane was measured using three methods which are based on linear speed-density relationship (Greenshield, 1935) which is Method 1, average speed of vehicles during low flow rate (U.S. HCM, 2000) which is Method 2 and average speed with headway ≥ 8 s which is Method 3. The results showed that the mean freeflow speed between Method 1, 2 and 3 was found to be not significantly different. Subsequently, multiple linear regression techniques was used to derive predictive free-flow speed models. The developed regression model showed good correlation with high value of coefficient of determination, R2. In addition, performance indicator (PI) showed that the model which is based on free-flow speed of cars with headway ≥ 8 s was selected as the most suitable model to be used in Malaysia roadway condition. Finally, sensitivity analysis showed that free-flow speed tended to be lower during worst geometrical conditions and lane width was the most sensitive parameter compared with other parameters.
format	Thesis
qualification_level	Master's degree
author	Azai, Tuti Azmalia
author_facet	Azai, Tuti Azmalia
author_sort	Azai, Tuti Azmalia
title	Free-Flow Speed For Four-Lane Highways With Level Terrain In Rural And Suburban Areas In Peninsular Malaysia
title_short	Free-Flow Speed For Four-Lane Highways With Level Terrain In Rural And Suburban Areas In Peninsular Malaysia
title_full	Free-Flow Speed For Four-Lane Highways With Level Terrain In Rural And Suburban Areas In Peninsular Malaysia
title_fullStr	Free-Flow Speed For Four-Lane Highways With Level Terrain In Rural And Suburban Areas In Peninsular Malaysia
title_full_unstemmed	Free-Flow Speed For Four-Lane Highways With Level Terrain In Rural And Suburban Areas In Peninsular Malaysia
title_sort	free-flow speed for four-lane highways with level terrain in rural and suburban areas in peninsular malaysia
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Awam
publishDate	2013
url	http://eprints.usm.my/46289/1/Tuti%20Azmalia%20Binti%20Azai24.pdf
_version_	1747821645595148288

Free-Flow Speed For Four-Lane Highways With Level Terrain In Rural And Suburban Areas In Peninsular Malaysia

Similar Items