Influence of territory slope and drainage systems on the value of fire risk during transportation of flammable liquids by road transport

2021 ◽  
pp. 34-41
Author(s):  
Юрий Николаевич Шебеко ◽  
Владимир Леонидович Малкин ◽  
Владимир Александрович Угорелов ◽  
Петр Алексеевич Леончук

В работе осуществлена оценка величины потенциального риска при перевозке пожароопасных грузов автомобильным транспортом с учетом возможного стекания горючей жидкости по уклонам. Проведено сравнение величины пожарного риска для случаев открытых и закрытых дренажных канав. It is not possible to calculate the fire risk that takes into account slopes on roads within the existing methodology for determining the calculated fire risk values at production facilities. The article suggests the elaboration of methodology considering the above-mentioned factors. The paper provides comparative assessment of the fire risk when transporting gasoline by automobile tanks with a capacity of 28 m, both considering one of the factors (road slope, the presence of drainage ditches) and without it. It is shown that these factors can have a significant impact on the fire risk value for objects near which there is an accident with a fire of vehicles with significant amount of flammable liquid. The potential risk increases approaching the lowest point of the road section. At the same time, depending on the total length of the section with a slope, this value may be an order higher than the fire risk in the areas located above. Technical measures such as drainage ditches can significantly affect the fire risk value. When open drainage ditches are installed, the risk of fire escalation increases when the burning liquid flows down. When installing closed drainage ditches, the risk of escalation due to the spread of fire is minimized and is possible mainly in the locations of drainage ditch hatches. At the same time, such technical solution increases the potential risk in the area of liquid discharge to the terrain.

2020 ◽  
Vol 11 (1) ◽  
pp. 305
Author(s):  
Rubén Escribano-García ◽  
Marina Corral-Bobadilla ◽  
Fátima Somovilla-Gómez ◽  
Rubén Lostado-Lorza ◽  
Ash Ahmed

The dimensions and weight of machines, structures, and components that need to be transported safely by road are growing constantly. One of the safest and most widely used transport systems on the road today due to their versatility and configuration are modular trailers. These trailers have hydraulic pendulum axles that are that are attached in pairs to the rigid platform above. In turn, these modular trailers are subject to limitations on the load that each axle carries, the tipping angle, and the oil pressure of the suspension system in order to guarantee safe transport by road. Optimizing the configuration of these modular trailers accurately and safely is a complex task. Factors to be considered include the load’s characteristics, the trailer’s mechanical properties, and road route conditions including the road’s slope and camber, precipitation and direction, and force of the wind. This paper presents a theoretical model that can be used for the optimal configuration of hydraulic cylinder suspension of special transport by road using modular trailers. It considers the previously mentioned factors and guarantees the safe stability of road transport. The proposed model was validated experimentally by placing a nacelle wind turbine at different points within a modular trailer. The weight of the wind turbine was 42,500 kg and its dimensions were 5133 × 2650 × 2975 mm. Once the proposed model was validated, an optimization algorithm was employed to find the optimal center of gravity for load, number of trailers, number of axles, oil pressures, and hydraulic configuration. The optimization algorithm was based on the iterative and automatic testing of the proposed model for different positions on the trailer and different hydraulic configurations. The optimization algorithm was tested with a cylindrical tank that weighed 108,500 kg and had dimensions of 19,500 × 3200 × 2500 mm. The results showed that the proposed model and optimization algorithm could safely optimize the configuration of the hydraulic suspension of modular trailers in special road transport, increase the accuracy and reliability of the calculation of the load configuration, save time, simplify the calculation process, and be easily implemented.


2021 ◽  
Vol 6 (5) ◽  
pp. 72
Author(s):  
Tor-Olav Nævestad ◽  
Beate Elvebakk ◽  
Karen Ranestad

About 36% of fatal road accidents in Norway involve at least one driver who is “at work”. It has been argued that the implementation of rules clearly defining the responsibility of road transport companies to prevent work related accidents, by implementing safety management systems (SMS), could lead to increased safety. In the present study we tested the validity of this suggestion, by examining the influence of different sector rules on work-related accident prevention in Norwegian road and maritime transport. In contrast to the road sector, the maritime sector has had rules requiring SMS for over 20 years, clearly defining the shipping companies responsibility for prevention of work-related accidents. The aims of the study were to: (1) examine how the different sector rules influence perceptions of whether the responsibility to prevent work-related accidents is clearly defined in each sector; and (2) compare respondents’ perceptions of the quality of their sectors’ efforts to prevent work-related accidents, and factors influencing this. The study was based on a small-scale survey (N = 112) and qualitative interviews with sector experts (N = 17) from companies, authorities, and NGOs in the road and the maritime sectors. Results indicate that respondents in the maritime sector perceive the responsibility to prevent work-related accidents as far more clearly defined, and they rate their sector’s efforts to prevent accidents as higher than respondents in road. Multivariate analyses indicate that this is related to the scope of safety regulations in the sectors studied, controlled for several important framework conditions. Based on the results, we conclude that the implementation of SMS rules focused on transport companies’ responsibility to prevent work-related accidents could improve safety in the road sector. However, due to barriers to SMS implementation in the road sector, we suggest starting with a simplified version of SMS.


Author(s):  
Maksim P. Tishakov

The work, based on previously little available for research, as well as materials and documents found in archival institutions, reflects the legal basis for ensuring road safety in 1948-1953, the state and organizational and legal measures taken in the field of combating accidents in road transport at the republican level by the example Ukrainian Soviet Socialist Republic. Attention is focused on the key problems that determine the development of the road safety system, the measures taken, their effectiveness, mistakes and achievements. Measures to counteract accidents in vehicles are investigated from a historical and legal standpoint, a critical and detailed analysis of decrees and orders of the government, departmental regulatory legal acts. It was found that the presence of a significant number of administrative decisions of the republican authorities of Soviet Ukraine, although it was a rather progressive step for its time, did not fully take into account the reality of achieving the set goals, local conditions and peculiarities. At the same time, the functioning of the emerging road safety system was significantly hampered by the lack of a unified national policy in the context of the rapid growth and development of the country’s automobile and road complex.


1984 ◽  
Vol 13 (1) ◽  
pp. 60-64
Author(s):  
Edward Karpoff ◽  
Fred C. Webster

Costs involved in double-bottoms (tandem trailers) and TOFC (trailer-on-flatcar; piggyback) were modeled and compared with conventional over-the-road transport of bulk milk from northern Vermont in single trailers. Both modes were found to be both cost-effective and fuel-sparing alternatives to conventional transport.Since the study's completion, although not as a direct result of it, two shippers have adopted these innovations. One of them (using double-bottoms) has budgeted savings even larger than those claimed in our study.


2019 ◽  
pp. 15-23
Author(s):  
Owen Jones ◽  
Keith Edwards ◽  
Greg Weller

2017 ◽  
Vol 7 (2) ◽  
pp. 332 ◽  
Author(s):  
Shepherd Nyaruwata ◽  
Douglas Runyowa

The tourism industry in Zimbabwe has experienced fluctuating trends in its growth since the dawn of the new millennium. The Ministry of Tourism and Hospitality Industry undertook a visitor exit survey in 2015/2016 period. The purpose of the study was to gather visitors’ views on Zimbabwe as a tourist destination in order to guide policy formulation on the sector. One of the objectives of the survey was to assess the visitor perceptions of Zimbabwe as a competitive tourist destination. Questionnaires were administered to departing visitors at the country’s three international airports and seven border posts during the period July 2015 until June 2016. The results of the survey indicated that 77% of visitors use road transport to enter into the country. The survey also showed that 18% of visitors to the country travelled by air. It is recommended that that the government accelerates the implementation of the open skies policy so as to attract more direct international airlines to fly into the country. It is also recommended that the government undertakes massive improvement of the road infrastructure in the country so as to encourage the geographical distribution of tourists within the country. It is finally recommended that the private sector and the national tourist organization, Zimbabwe Tourist Authority (ZTA) engage international tour operators and persuade them to develop and promote fly-drive tour packages to the country.


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