2016
DOI: 10.1080/19439962.2016.1199623
|View full text |Cite
|
Sign up to set email alerts
|

Safety performance appraisal at roundabouts: Case study of Salalah City in Oman

Abstract: Although, roundabouts have proved significant in improving safety, capacity, and environmental performance, they have shown an increasing crash rate in Oman over the years. This paper aims to evaluate the safety performance of the roundabouts in Oman through the development of crash prediction models to examine the relationship between the geometric, traffic flow variables and crash frequency and severity. These models can determine which variables are the best indicators for safety performance.Generalized Lin… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1
1

Citation Types

0
2
0

Year Published

2018
2018
2024
2024

Publication Types

Select...
7

Relationship

0
7

Authors

Journals

citations
Cited by 10 publications
(2 citation statements)
references
References 16 publications
0
2
0
Order By: Relevance
“…Several international studies employed speed variables in their SPFs (e.g., 23 , 44 , 56 , 57 ). On the other hand, some of the studies did not succeed, for example NCHRP Project 3-65 ( 30 ), in which the estimated model was deemed inadequate on the basis of weak effects of speed variables.…”
Section: Analysesmentioning
confidence: 99%
“…Several international studies employed speed variables in their SPFs (e.g., 23 , 44 , 56 , 57 ). On the other hand, some of the studies did not succeed, for example NCHRP Project 3-65 ( 30 ), in which the estimated model was deemed inadequate on the basis of weak effects of speed variables.…”
Section: Analysesmentioning
confidence: 99%
“…Studies conducted by Al-Kheder and Al-Rashidi [15] and Mohamed et al [16] for neighboring Gulf state Abu Dhabi in United Arab Emirates (UAE) also reported that factors responsible for increased traffic crashes include road type, road surface conditions, excessive speeds, and non-compliance to traffic rules. A generalized linear model (GLM)-based safety appraisal study conducted for Salalah City in Oman also indicated that road geometry and traffic variables (volumes and 85th percentile speed) were the most significant variables affecting the frequency of crashes [17]. Recently, some safety measures and policies have been initiated; however, the situations seem to have marginally improved.…”
Section: Introductionmentioning
confidence: 99%