Posted Road Speed Limits in Abu Dhabi: Are They Too High? Should They Have Been Raised? Evidence Based Answers

Francisco Daniel B. Albuquerque

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Road posted speed limits (PSL) in Abu Dhabi (AD) were raised in mid-2018. Before raising PSL by 20 kph, AD drivers were legally allowed to drive 20 kph above PSL. Thus, there was a speed buffer within which drivers would not be fined for speeding. While it has been stated (through public media) that the elimination of this speed buffer would increase safety, this paper challenges this view. This paper describes how the argument for increased safety through increased PSL quickly breaks down. The paper bases its arguments mainly on basic physics, as well as local research data and findings. More specifically, this paper not only shows how existing road design may not safely accommodate raised PSLs (or even previously lower PSLs), but also how fatal road injuries are more likely to occur on AD roads with higher design speeds. The paper also describes how increased PSL may increase the potential for liability and greenhouse gas emissions. This paper concludes that while speed buffers should have been removed, PSL should not have been increased since higher PSL may negatively affect road safety while decreasing travel times only marginally. That is, there is not much to gain from raising PSLs, but there is potentially a lot to lose. Thus, the author urges policy makers to make decisions based on science and solid evidence. This is relevant as decisions such as increasing PSL on public roads may have a significant negative impact on public health through increased injury/mortality rates and pollution levels.

Original languageEnglish
Title of host publicationAdvances in Road Infrastructure and Mobility - Proceedings of the 18th International Road Federation World Meeting and Exhibition, 2021
EditorsAmin Akhnoukh, Kamil Kaloush, Magid Elabyad, Brendan Halleman, Nihal Erian, Samuel Enmon II, Cherylyn Henry
PublisherSpringer Science and Business Media B.V.
Pages915-930
Number of pages16
ISBN (Print)9783030798000
DOIs
Publication statusPublished - 2022
Event18th International Road Federation World Meeting and Exhibition, 2021 - Dubai, United Arab Emirates
Duration: Nov 7 2021Nov 10 2021

Publication series

NameSustainable Civil Infrastructures
ISSN (Print)2366-3405
ISSN (Electronic)2366-3413

Conference

Conference18th International Road Federation World Meeting and Exhibition, 2021
Country/TerritoryUnited Arab Emirates
CityDubai
Period11/7/2111/10/21

Keywords

  • Crashes
  • Injuries
  • Road Safety/Design
  • Speed management

ASJC Scopus subject areas

  • Computational Mechanics
  • Environmental Engineering
  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology

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