Framework of simulation-based vehicle safety performance assessment of highway system under hazardous driving conditions

Hou, Guangyang; Chen, Suren; Chen, Feng

doi:10.1016/j.trc.2019.05.035

Cited by 33 publications

(20 citation statements)

References 32 publications

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“…r F -the rotation rate of the suspension system. From Eq (11), the anti-skid friction demand f s−demand of a vehicle with a suspension system can be obtained as:…”

Section: Skidding Limit State Functionmentioning

confidence: 99%

“…In light of the above results, it can be found that long-term polishing effects of CTV will lead to pavement friction deterioration. This deterioration may result in potential skidding risk for the vehicles on the horizontal curve [ 10 , 11 ]. Because when the vehicles traverse a horizontal curve, the friction supply from pavement plays a critical role against the centrifugal force to stay driving stability of vehicles [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

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The influence of the pavement friction coefficient evolution caused by traffic flow on the risk of motorway horizontal curves

Shan³

et al. 2022

PLoS ONE

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The friction coefficient between the tire and the road is one of the key parameters affecting road traffic safety. The purpose of this paper is to quantify the risk of skidding for the vehicles due to the friction evolution caused by the traffic polishing in the horizontal curve. Based on the reliability theory, an innovative dynamic risk assessment model is developed in the present study for passenger cars and trucks. The influence of two traffic characteristics for pavement friction is quantified: cumulative traffic volume (CTV) and annual average daily traffic of trucks (AADTT). The speed distribution on the horizontal curve of the motorway is obtained through field experiments as the basic parameter of the model. The Hasofer-Lind Method is adopted to solve the reliability and the risk probability of vehicle skidding. The results show that in the traffic characteristics, the AADTT has a significant impact on the pavement friction; When the AADTT on the road exceeds 2000 veh/d, the increasing CTV leads to friction decrease rapidly and therefore has a significant impact on the risk of horizontal curve. Especially for roads with more than 50 million vehicles of the CTV, the risk of the horizontal curve shows a sharp increase with CTV rising. The research results can provide reference for the road maintenance department to determine the timing of road maintenance.

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“…r F -the rotation rate of the suspension system. From Eq (11), the anti-skid friction demand f s−demand of a vehicle with a suspension system can be obtained as:…”

Section: Skidding Limit State Functionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of the pavement friction coefficient evolution caused by traffic flow on the risk of motorway horizontal curves

Shan³

et al. 2022

PLoS ONE

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“…Kiedy jezdnia staje się śliska, pojazd autonomiczny musi na nowo obliczyć swoją trajektorię ruchu. Wielu autorów twierdzi, że zmiana pogody wymaga natychmiastowego uwzględnienia w systemach planowania i sterowania ruchem pojazdu autonomicznego [53,33,25]. Jest to związane z tym, że zakłócenie pracy czujników prowadzi do powstania białych plam informacyjnych -sytuacji, w których nie ma wystarczającej ilości danych potrzebnych do prawidłowej estymacji, lokalizacji, detekcji, a to utrudnia podejmowanie decyzji przez układ sterowania samochodem [26].…”

Section: Wstępunclassified

Wpływ Niekorzystnych Warunków Atmosferycznych Na Działanie Sensorów Wykorzystywanych W Samochodach Autonomicznych

BRZOZOWSKI¹,

Parczewski²

2021

Projektowanie, Badania I Eksploatacja

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Streszczenie: Celem artykułu jest objaśnienie wpływu niekorzystnych warunków pogodowych na najbardziej popularne sensory wykorzystywane w samochodach autonomicznych. W pracy przedstawiono typowe sensory takie jak: kamera, LiDAR oraz RADAR, a następnie wskazano zakłócenia jakie w ich pracy wywołują niekorzystne warunki pogodowe. Przedstawiono wpływ: deszczu, śniegu oraz mgły. Ponadto omówiono próby zmierzające do ograniczenia tego wpływu. Proponowane działania dotyczą zarówno usprawnień samego sprzętu jak i rozwijania metod analizy obrazu. Podsumowaniem opracowania jest konkluzja, że najlepsze efekty otrzymuje się podczas wykorzystywania różnych sensorów, które mogą się wzajemnie uzupełniać.

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“…As mentioned by Reymert et al (2022), who performed a systematic search and filtering process for recent technical articles, most literature focused on numerical simulation of vehicle motion (Chen and Cai 2004;Chen et al 2015;Kim and Kim 2019;Kim et al 2021) and wind-tunnel testing technique to measure aerodynamic forces on vehicles (Suzuki et al 2003;Zhu et al 2012;Dorigatti et al 2012;Chen et al 2015;Wang et al 2018;Kim et al 2020). In recent years, challenging technologies also have been reported, such as the wind-tunnel technique for moving vehicle tests (Wang et al 2022;Xiang et al 2018) and numerical dynamic analysis considering bridge-vehicle-wind interaction (Hou et al 2019;Zhou and Chen 2016; Wang and Xu 2015). All those accomplishments enable us to estimate the critical wind speeds of vehicles on a bridge and determine when to close the bridge or lower the vehicle speed limit during windy conditions.…”

Section: Introductionmentioning

confidence: 99%

Risk Assessment of Wind-Induced Vehicle Accidents on Long-Span Bridges Using Onsite Wind and Traffic Data

2022

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A systematic approach was proposed to assess vehicle accident risk over sea-crossing bridges under strong winds. The annual frequency of an accident was evaluated as a risk index using the information on daily traffic volumes, the ratio of high-sided vehicles, and the long-term distribution of the speed and direction of the wind at the bridge site. The approach considered the effect that deck shapes and road alignments exert on vehicle stability. The risk index was estimated by accounting for the entire road sections of the examined bridge, including approach spans. The proposed method successfully identified the vulnerable positions along the bridge and the vehicle types. The application on a sea-crossing bridge demonstrated the usefulness of the proposed risk-assessment approach in determining a preferable mitigation strategy with less traffic intervention or minimized windscreen installation by quantitative comparisons between risk indices of several possible measures.

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Framework of simulation-based vehicle safety performance assessment of highway system under hazardous driving conditions

Cited by 33 publications

References 32 publications

The influence of the pavement friction coefficient evolution caused by traffic flow on the risk of motorway horizontal curves

The influence of the pavement friction coefficient evolution caused by traffic flow on the risk of motorway horizontal curves

Wpływ Niekorzystnych Warunków Atmosferycznych Na Działanie Sensorów Wykorzystywanych W Samochodach Autonomicznych

Risk Assessment of Wind-Induced Vehicle Accidents on Long-Span Bridges Using Onsite Wind and Traffic Data

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