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Title:

Evaluation of Effectiveness of Portable Variable Message Signs in Reducing Speed on Rural Highway in Abu Dhabi Emirate, UAE

Accession Number:

01478340

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

Abu Dhabi Department of Transportation (DoT) has deployed approximately 40 Portable Variable Message Signs (PVMSs) in the year 2010 throughout the main DoT’s highway network as one of the strategies to communicate with drivers efficiently. The objective of these PVMSs is to provide drivers with adequate warnings related to severe weather conditions (e.g., fogs, dusty, rainy) and critical areas such as construction zones and school crossings. The effectiveness of PVMSs in Abu Dhabi has not been evaluated yet in any perspective. The aim of this study is to evaluate the impact of PVMSs on driver speeding behavior on rural highways. The study adopted a longitudinal approach and involved the collection of vehicular speed and classified volume data. Data collection were performed in three stages: 1) Without PVMS, 2) PVMS was installed and relaxation period was given to ensure the road users become familiar with PVMS; 3) With PVMS. Approximately half of a million vehicular data were collected at the study location. The descriptive and analytically statistical methods were used to compare speed data for the first and third stages. Results showed that there is no significant difference between mean and 85th percentile speeds for before and after installation of PVMS. PVMSs were found to be effective though statistically not significant (p-value > 0.005 at 95% confidence level) in reducing driver’s speeds on rural highway in Abu Dhabi. Further, the proportion of vehicles speeding excessively (i.e. vehicles traveling over the posted speed limit) was slightly decreased by the use of PVMS.

Supplemental Notes:

This paper was sponsored by TRB committee AHB50 Traffic Control Devices.

Monograph Accession #:

01470560

Report/Paper Numbers:

13-4788

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Ahmed, Kamran
Al-Zoubi, Khalid
Zaneldin, Essam

Pagination:

14p

Publication Date:

2013

Conference:

Transportation Research Board 92nd Annual Meeting

Location: Washington DC, United States
Date: 2013-1-13 to 2013-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References; Tables

Subject Areas:

Highways; Operations and Traffic Management; I73: Traffic Control

Source Data:

Transportation Research Board Annual Meeting 2013 Paper #13-4788

Files:

TRIS, TRB, ATRI

Created Date:

Feb 5 2013 12:55PM