Effects of stationary work zones on motorway crashes

Torre, Francesca La; Domenichini, Lorenzo; Nocentini, Alessandro

doi:10.1016/j.ssci.2016.10.008

Cited by 35 publications

(22 citation statements)

References 5 publications

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“…Several studies like the ones performed by Ullman et al (2006), Meng et al (2010), Silverstein et al (2016), La Torre et al (2017), and Ambros et al (2020) concluded that the probability of serious accident occurrences at road work zones is higher than those outside these areas [1][2][3] and that an increase in the expected crash frequency during the time a work zone is installed is verified when compared to the crash frequency in the before period [4,5].…”

Section: Introductionmentioning

confidence: 99%

Detecting Risk Factors of Road Work Zone Crashes from the Information Provided in Police Crash Reports: The Case Study of Portugal

Santos

Trindade

Polónia

et al. 2021

Safety

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Several studies have shown that European police crash reports provide different detail degrees of work zone crash-related data. In this sense, the present study aims to verify the possibility of identifying significant risk factors involved in the occurrence of road work zone crashes with casualties, based on the official data usually available, through a descriptive, binary logistic, and probit regression statistical analysis. To accomplish the analysis, a total of 2597 police-reports related to 1767 Portuguese work zone crashes that occurred during the 2013–2015 period were considered and binary logistic and probit regression models were estimated by the main type of crash, contributing factor, and driver age group. Fifteen explanatory variables, selected based on the literature review and crash data provided in police crash reports, were considered in the analysis. The results obtained for the estimated coefficients and goodness-of-fit test values were found very similar for both link functions (logit and probit) and it was possible to identify risk factors. The modeling results pointed to excessive speed, disregard for vertical signs, luminosity, intersections, and motorcycle and heavy vehicle involvement as the most significant risk factors. Given the results, it is possible to conclude that binary logistic regression can be used in the statistical analysis of the available police official work zone crash data to identify and get some insight into the risk factors involved in work zone crashes. Data analysis also revealed the need to promote adequate and complete crash report filling by police officers. While police crash reports are not revised and standardized to incorporate more detailed work zone crash information, this approach can be used to support a more efficient road operation decision making and the review of some aspects related to work zone layout design.

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Section: Introductionmentioning

confidence: 99%

Detecting Risk Factors of Road Work Zone Crashes from the Information Provided in Police Crash Reports: The Case Study of Portugal

Santos

Trindade

Polónia

et al. 2021

Safety

View full text Add to dashboard Cite

show abstract

“…Before-after and cross-sectional methods are widely used to estimate CMFs (11,(16)(17)(18)(19)(20)(21). Nevertheless, before-after methods are stronger and preferable than cross-sectional methods (16).…”

Section: Methodsmentioning

confidence: 99%

“…Before–after with comparison group analysis has been conducted to estimate CMFs for RCUT intersections. Before–after methods are mostly used to estimate CMFs ( 11, 16, 20, 23 ). To ensure that the selection of comparison locations was appropriate, the average sample odds ratio must be determined ( 24 ).…”

Section: Methodsmentioning

confidence: 99%

Safety Evaluation of Median U-Turn Crossover-Based Intersections

Al-Omari

Abdel-Aty

Lee

et al. 2020

Transportation Research Record: Journal of the Transportation R

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Alternative innovative designs for intersections were defined to enhance traffic operation and safety. Median U-turn (MUT) and restricted crossing U-turn (RCUT) intersections are among the types of alternative intersections that enable drivers to make left-turn movements at median U-turn crossovers downstream of the main intersection. Recently, municipalities and transport agencies have tended to implement these types of intersections. However, their effectiveness in crash reduction has not been adequately determined in previous studies. This is because of the limited number of alternative intersections that were considered in these studies. In addition, there was no consideration for the unusual new geometric design of these intersections. In this study, a safety evaluation was conducted while considering the new intersection-related areas at MUT and RCUT intersections to clarify and quantify their effectiveness in crash reduction. This study considered 73 MUT and 12 RCUT intersections. Two types of MUT intersections were considered in this study. Crash modification factors for MUT and RCUT intersections were estimated by using before–after and cross-sectional methods. The results indicated that MUT and RCUT intersections are safer than conventional intersections. MUT intersections are effective in reducing total, property damage only (PDO), rear-end, and opposite-direction sideswipe crashes, although they significantly increase single-vehicle and non-motorized crashes. RCUT intersections are effective in reducing fatal-and-injury, injury, head-on, and angle crashes. Findings of this research provide clear evaluation for decision makers about the effectiveness of MUT and RCUT intersections in crash reduction.

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“…These activities are mostly periodical but could be critical for a safe and efficient transportation system (Ng & Waller, 2010;Debnath & Blackman, 2014;Chen & Tarko, 2014;Wu et al, 2013). Some authors indicate work zones as critical nodes of the road network in terms of road safety as they entails deviations from frequent driving conditions in a discrete road section (La Torre et al, 2017). Base-lining Road Works Safety on European Roads [BRoWSER] (2004) indicates the probability of traffic accident is less if all vehicles are speeding through roadwork zone instead of substantial speed differences.…”

Section: Introductionmentioning

confidence: 99%

Traffic Capacity Analysis in a One-Lane Roadwork Zone

Skrodenis

Čygas

Jakubėnaitė

2020

International Conference “Environmental Engineering”

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Interventions to road are always required to keep road network in a good condition for this reason road works such as maintenance or reconstruction are carried out regularly. Roadwork zone distorts typical driving conditions and brings many unknown factors to driving process that increase the likelihood of an accident or congestion formation. Roadworks zones in Lithuania are a serious problem due to congestion formation, therefore, before the real construction works, it is necessary to carry out traffic flow and capacity modeling as well as to choose the appropriate traffic organization scheme through roadworks zones. The biggest congestion of vehicles in Lithuania occurs in roadworks zones where there is one lane left and traffic is controlled by traffic light, which do not adapt to real traffic conditions, but operate according to the created cycle and frequency model. The simulation analysis of roadwork zone with temporary traffic lights, in order to select optimal green light cycle and frequency is represented, in this paper.

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Effects of stationary work zones on motorway crashes

Cited by 35 publications

References 5 publications

Detecting Risk Factors of Road Work Zone Crashes from the Information Provided in Police Crash Reports: The Case Study of Portugal

Detecting Risk Factors of Road Work Zone Crashes from the Information Provided in Police Crash Reports: The Case Study of Portugal

Safety Evaluation of Median U-Turn Crossover-Based Intersections

Traffic Capacity Analysis in a One-Lane Roadwork Zone

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