Calibración de Ecuaciones de Velocidades de Operación en Carreteras Rurales Montañosas de Dos Carriles: Caso de Estudio Ecuatoriano

García-Ramírez, Yasmany; Alverca, Fabricio

doi:10.33333/rp.vol43n2.1012

Cited by 6 publications

(4 citation statements)

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“…Data on road operation, such as the pedestrian flows, was obtained through previous studies or in-situ counting. The operating speeds were calculated using the local equations from a similar road study [40]. Some data, such as lane width was measured in situ 203-4 on each road.…”

Section: Road Attributes Collectionmentioning

confidence: 99%

Proposal of New Star Rating Bands for iRAP on Two-lane Rural Roads in Ecuador

García-Ramírez¹

2023

Proceedings of the 8th International Conference On Civil, Structural and Transportation Engineering (ICCSTE 2023)

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The iRAP model aims to reduce the number of road accidents or their severity by assigning a Star Rating (SR) to every 100 m of the road. The SR were derived from accident statistics and studies from several countries and organizations. However, these results may not be applicable to other countries or regions due to differences in the safety of vehicles and the behaviour of road users. This research proposes new iRAP Star Rating (SR) bands for two-lane rural roads in Ecuador. The study analysed more than 600 kilometres on the country's road network and estimated the SRS values every 100 m after collecting the road infrastructure attributes that could impact the likelihood of severity of a crash. The iRAP results were compared with the actual traffic accidents in the country, and, after statistical analysis, the study proposed new thresholds that better fit the Ecuadorian data. This process can be used by other countries to calibrate their own thresholds.

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Section: Road Attributes Collectionmentioning

confidence: 99%

Proposal of New Star Rating Bands for iRAP on Two-lane Rural Roads in Ecuador

García-Ramírez¹

2023

Proceedings of the 8th International Conference On Civil, Structural and Transportation Engineering (ICCSTE 2023)

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“…Moreover, the photos had a minimum resolution of 1360 × 768 pixels. Finally, some road features were estimated indirectly by employing local studies, such as the models of operating speeds for this roads [18].…”

Section: B Sites Selectionmentioning

confidence: 99%

Do public transport drivers perceive hazards properly on mountain roads?

García-Ramírez

Peña

2021

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Public transport drivers, due to their daily exposure, should have a remarkable level of hazard recognition on mountain roads. Therefore, the objective of this research was to analyze their hazard perception capabilities. We photographed twelve road sites in mountainous topography, and showed it to 97 participants. The hazard perception was collected with an online survey and compared with the objective hazard, which was calculated using the iRAP methodology. We found that the majority of drivers could not recognize the hazards of the most dangerous places, which is worrying, especially given that these are actual real-world roads that they must traverse. It calibrated four equations to predict the objective hazard based on perceived hazard. No differences were found in the hazard perception based on years of experience and types of licenses. The results of this study will allow road safety institutions to create specific courses for drivers with inadequate hazard perception, or improve the training process for candidate drivers.

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“…Otherwise, the objective hazard was estimated using ViDA software [27], which has the iRAP models and factors. Some characteristics were measured indirectly, such as the lane width (from the videos) or the operating speed (from calibrated equations) [28]. The hazard perception and its relation to the objective hazard were analyzed.…”

Section: Data Collection and Processingmentioning

confidence: 99%

Hazard perception of novice drivers in mountain roads: a case study in Ecuador

Ramírez

Cuenca

2021

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Novice drivers are more likely to be involved in a traffic accident than experienced drivers. Detecting danger is one of the skills that these drivers must acquire with age and experience. This can reduce this probability, especially on mountain roads. Therefore, the purpose of this research was to analyze the hazard perception of novice drivers on mountain roads. Thirty-seven drivers participated in the experiment, who watched videos of road sites. After each video, they had to answer a survey about the hazards they observed on the site. Based on this survey, the hazard perception was estimated, which was compared with the actual hazard, calculated by iRAP. As expected, drivers do not recognize hazards properly, especially in the most dangerous places. No significant differences were found among sex, age, and type of driver's license. However, relationships were found among hazard perception, the actual hazard, and the error between them, so four linear equations were calibrated. This research will help public and private institutions related to road safety optimize resources in driver training by: a) including the hazard detection of danger in the curriculum, or b) offering a complementary course to those who have already obtained their license.

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Calibración de Ecuaciones de Velocidades de Operación en Carreteras Rurales Montañosas de Dos Carriles: Caso de Estudio Ecuatoriano

Cited by 6 publications

References 0 publications

Proposal of New Star Rating Bands for iRAP on Two-lane Rural Roads in Ecuador

Proposal of New Star Rating Bands for iRAP on Two-lane Rural Roads in Ecuador

Do public transport drivers perceive hazards properly on mountain roads?

Hazard perception of novice drivers in mountain roads: a case study in Ecuador

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