scholarly journals Descriptive epidemiology of road traffic mortality caused by heavy vehicles in Iran in 2018

2021 ◽  
Vol 10 (2) ◽  
pp. 97
Author(s):  
SeyedSaeed Hashemi Nazari ◽  
Saeideh Shojaei ◽  
SeyedAmirhosein Mahdavi ◽  
SeyedDavood Mirtorabi ◽  
Mehdi Forouzesh
Author(s):  
Parthkumar Patel ◽  
H.R. Varia

Safe, convenient and timely transportation of goods and passengers is necessary for development of nation. After independence road traffic is increased manifold in India. Modal share of freight transport is shifted from Railway to roadways in India. Road infrastructures continuously increased from past few decades but there is still need for new roads to be build and more than three forth of the roads having mixed traffic plying on it. The impact of freight vehicles on highway traffic is enormous as they are moving with slow speeds. Nature of traffic flow is dependent on various traffic parameters such as speed, density, volume and travel time etc. As per ideal situation these traffic parameters should remain intact, but it is greatly affected by presence of heavy vehicle in mixed traffic due to Svehicles plying on two lane roads. Heavy vehicles affect the traffic flow because of their length and size and acceleration/deceleration characteristics.  This study is aimed to analyse the impact of heavy vehicles on traffic parameters.


2018 ◽  
Author(s):  
Nazia Hirani ◽  
rafael Consunji ◽  
Aisha Fathi Abeid ◽  
Amber Mehmood ◽  
Monira Mollazehi ◽  
...  

2014 ◽  
Vol 3 (2) ◽  
pp. 149-158 ◽  
Author(s):  
Jorge Mena ◽  
Álvaro I. Sánchez ◽  
María Isabel Gutiérrez ◽  
Juan-Carlos Puyana ◽  
Brian Suffoleto

Mena, J., Sánchez, Á., Gutiérrez, M., Puyana, J., & Suffoleto, B. (2014). The association between alcohol restriction policies and vehicle-related mortality in Cali, Colombia, 1998-2008. The International Journal Of Alcohol And Drug Research, 3(2), 149-158. doi:http://dx.doi.org/10.7895/ijadr.v3i2.157Aims: To determine whether the implementation of alcohol control policies was associated with changes in the incidence of road traffic deaths.Design: Ecologic study conducted using an interrupted time series analysis. Full restrictive polices banned alcohol between 6 p.m. and 6 a.m. Most restrictive polices prohibited alcohol between 1 a.m. and 10 a.m. Restrictive policies prohibited alcohol between 2 a.m. and 10 a.m. Moderately restrictive policies banned alcohol between 3 a.m. and 10 a.m. Lax policies prohibited alcohol between 4 a.m. and 10 a.m.Setting: We used data of road traffic mortality in the population of Cali, Colombia from 1998 to 2008.Participants: The population of Cali in 2008 was 2,184,753 inhabitants; 47% were male.Measures: Aggregated daily counts of road traffic deaths. Restrictive policies were compared with lax policies to estimate the effect of reducing hours of alcohol availability using multiple negative binomial regressions.Findings: There was a decreased risk of road traffic mortality in periods when moderately restrictive policies were in effect (IRR = 0.84, 95% CI 0.72–0.97, p = 0.019). There was an even lower risk of road traffic deaths in periods when most restrictive policies were in effect (IRR = 0.70, 95% CI 0.58–0.85, p < 0.001). In motorcyclists, most restrictive (IRR 0.55, 95% CI 0.38–0.81, p = 0.002) and full restrictive policies (IRR 0.52, 95% CI 0.29–0.94, p = 0.032) were associated with decreased risk of mortality.Conclusions: Our findings support more restrictive alcohol control policies to reduce road traffic mortality. Specifically, reducing the time of alcohol availability was associated with a decrease in road traffic death rates.


Author(s):  
Mirsad Kulović ◽  
Belma Dogdibegović-Kovač

This paper examines the relationship between the relevant parameters of traffic safety and the most important parameter of economic development, gross domestic product. In particular, the paper estimates the effects of the model of the rate of motorization and road traffic mortality in relation to the number of inhabitants and the number of motor vehicles, which are further used for the projection of mortality and the number of motor vehicles by 2030.


2020 ◽  
Vol 10 (4) ◽  
pp. 1389 ◽  
Author(s):  
Pietro Croce

Fatigue load models for road bridges given in the Eurocode EN1991-2 have been calibrated considering real traffic measurements that became available around 1990. Since then, traffic composition has evolved considerably, also considering the issuing of the 96/53/EC Directive, which legitimated member states, on an equal and not discriminatory basis, to allow the circulation of Long and Heavy Vehicles (LHVs). Thus, the appropriateness of fatigue load models to cover also the effects of these vehicles, which are longer, heavier and potentially more damaging than common Heavy Goods Vehicles (HGVs), became an issue. The aim of the study is to assess how the evolution of European traffic influences the fatigue assessment of bridges. To capture the essence of the problem, three different real traffic measurements are compared in terms of fatigue damage: the Auxerre (FR) traffic, adopted to define fatigue load models in EN1991-2; the Moerdijk (NL) traffic, characterized by a high percentage of LHVs; and the Igualada (ES) traffic. To assess the current relevance of fatigue load models LM2 and LM4 of EN1991-2, the aptitude of these models to adequately reproduce the effects caused by LHVs is discussed in detail. The results demonstrate that the Auxerre traffic is still the most onerous; that the Moerdijk traffic is generally more severe than the Igualada traffic, and that the fatigue load models of Eurocode do not require major updates. The study is further supplemented by investigating the suitability of the formulae provided in the Eurocodes for the damage equivalence factors λ2 and λ3 to express the influence of the total lorry volume on the fatigue damage. In that latter case, the conclusion is that the formulae proposed in the Eurocodes, based on the assumption of a linear fatigue strength S–N curve with constant conventional slope m, could lead to erroneous, even unsafe, estimates of the fatigue life, especially when details are characterized by constant amplitude fatigue limit ΔσD, thus calling for further improvements of the formulae themselves.


2018 ◽  
Author(s):  
Lijun Wang ◽  
Peishan Ning ◽  
Peng Yin ◽  
Peixia Cheng ◽  
David Schwebel ◽  
...  

2009 ◽  
Vol 91 (1) ◽  
pp. 4-15 ◽  
Author(s):  
ANESH SUKHAI ◽  
ANDY P. JONES ◽  
ROBIN HAYNES

PLoS ONE ◽  
2012 ◽  
Vol 7 (2) ◽  
pp. e31091 ◽  
Author(s):  
Jonathan C. Samuel ◽  
Edward Sankhulani ◽  
Javeria S. Qureshi ◽  
Paul Baloyi ◽  
Charles Thupi ◽  
...  

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