Road traffic: A case study of flow and path-dependency in weighted directed networks

Urban road tunnels are a reasonable remedy for inconvenience due to congested road traffic. However, they bring specific threats, especially those related to the possibility of fire outbreak. This work is a case study for selected urban road tunnels. Considering tunnel specificity, road traffic intensity, and structure and based on the literature data for vehicle fire probability, the chances of a fire accident were estimated for selected tunnels in Poland. It was shown that low power tunnel fires could be expected in the 10–20-year time horizon. Although such threats cannot be disregarded, tunnel systems are designed to cope with them. The chances of a disastrous fire accident were estimated as well. Such events can occur when an HGV with flammable goods or a tanker are involved. Such accidents are fortunately very rare, but, on the other hand, that is the reason why the available data are scanty and burdened with high uncertainty. Therefore, a discussion on the reliability of the obtained results is also provided.

Download Full-text

An autonomous navigational system using GPS and computer vision for futuristic road traffic

International Journal of Electrical and Computer Engineering (IJECE) ◽

10.11591/ijece.v12i1.pp179-188 ◽

2022 ◽

Vol 12 (1) ◽

pp. 179

Author(s):

Prabha Ramasamy ◽

Mohan Kabadi

Keyword(s):

Computer Vision ◽

Global Positioning System ◽

Navigation System ◽

Autonomous Navigation ◽

Road Traffic ◽

Positioning System ◽

Traffic System ◽

Global Positioning ◽

Navigational System

Navigational service is one of the most essential dependency towards any transport system and at present, there are various revolutionary approaches that has contributed towards its improvement. This paper has reviewed the global positioning system (GPS) and computer vision based navigational system and found that there is a large gap between the actual demand of navigation and what currently exists. Therefore, the proposed study discusses about a novel framework of an autonomous navigation system that uses GPS as well as computer vision considering the case study of futuristic road traffic system. An analytical model is built up where the geo-referenced data from GPS is integrated with the signals captured from the visual sensors are considered to implement this concept. The simulated outcome of the study shows that proposed study offers enhanced accuracy as well as faster processing in contrast to existing approaches.

Download Full-text

Landscape depressions can create silent zones in noise polluted parks

INTER-NOISE and NOISE-CON Congress and Conference Proceedings ◽

10.3397/in-2021-2170 ◽

2021 ◽

Vol 263 (4) ◽

pp. 2550-2554

Author(s):

Timothy Van Renterghem ◽

Pieter Thomas ◽

Dick Botteldooren

Keyword(s):

Sound Pressure Level ◽

Sound Pressure ◽

Noise Exposure ◽

Road Traffic ◽

Traffic Noise ◽

Pressure Level ◽

Road Traffic Noise ◽

Efficient Measure ◽

Natural Means

Excessive road traffic noise exposure in (sub)urban parks hinders its restorative function and will negatively impact the number of visitors. Especially in such green environments, noise abatements by natural means, well integrated in the landscape, are the most desired solutions. Although dense vegetation bordering the park or raised berms could come first in mind, local landscape depressions are typically underused. In this work, a case-study of a small suburban park, squeezed in between two major arterial roads, is analyzed. The spatially dependent road traffic noise exposure in the park is assessed in detail by mobile sound pressure level measurements. Local reductions of up to 6-7 dBA are found at landscape depressions of only a few meters deep. It can therefore be concluded that this is an efficient measure and should be added to the environmental noise control toolbox for noise polluted parks.

Download Full-text

Safety Analysis of Pedestrians As Users of Road Traffic in the Slovak Republic

Auspicia ◽

10.36682/a_2020_3_2 ◽

2020 ◽

pp. 38-56

Author(s):

Pavel Kohút ◽

Ludmila Macurová ◽

Miroslav Felcan

Keyword(s):

Police Officers ◽

Traffic Accidents ◽

Road Traffic ◽

Slovak Republic ◽

Risk Groups ◽

Negative Consequences ◽

Road Users ◽

Pedestrian Accident ◽

Principle Of Proportionality

ABSTRACT: The paper deals with the analysis of traffic accidents involving pedestrians in the Slovak Republic. The development of traffic accidents involving pedestrians is processed through statistical data for the period 2011 - 2019. The paper defines the risk groups of road users, identified areas with the highest traffic accidents, evaluated the negative consequences of traffic accidents and identified their possible causes. A separate chapter is a case study consisting of an analysis of a vehicle - pedestrian accident. Based on the performed analysis of traffic accidents involving pedestrians, safety measures are set to minimize the number of traffic accidents involving pedestrians and their negative consequences. The study is one of the outputs of the APVV-17-0217 project "Staffing of police officers and application of the principle of proportionality in criminal and administrative law.

Download Full-text

A Path Dependency Approach to Governance Practices at a Public University of the Western Cape, South Africa

Journal of Public Administration and Governance ◽

10.5296/jpag.v11i1.18095 ◽

2021 ◽

Vol 11 (1) ◽

pp. 110

Author(s):

Tom Mark Brown

Keyword(s):

South Africa ◽

Tertiary Education ◽

Structured Interview ◽

Path Dependency ◽

Primary Data ◽

Governance Structures ◽

Western Cape ◽

Governance Practices ◽

Student Unrest

This paper investigates the governance practices embedded within governance structures at the disposal of students at a public tertiary education institution, and student unrest as a mechanism to sway decision-making and reform policy at the case study institution of higher learning. In particular, the study is guided by a qualitative research paradigm using a structured interview tool to gather primary data using the University of the Western Cape (UWC) situated in Cape Town, South Africa, as a bounded case study, against the backdrop of the 2015-2016 #FeesMustFall (FMF) protests. It is suggested in this paper that student unrest is not the main reason, but rather a symptom of the broader inadequacies of the current participatory mechanisms available in university governance structures in general, and at the UWC. Employing a Path Dependency Theoretical (PDT) Approach. The article concludes by analyzing the findings of the empirical research, by identifying several themes and sub-themes.

Download Full-text

Management of High Risk Road Sections of Sarajevo - Romanija Region (Case Study)

JTTTP - JOURNAL OF TRAFFIC AND TRANSPORT THEORY AND PRACTICE ◽

10.7251/jtttp1601053m ◽

2016 ◽

Vol 1 (1) ◽

Author(s):

Valentina Mandić ◽

Danislav Drašković

Keyword(s):

Transport System ◽

Traffic Safety ◽

Road Safety ◽

Road Traffic ◽

High Price ◽

Safety Control ◽

Social Growth ◽

Analytical Monitoring ◽

The Status

Road traffic, as a part of the entire transport system, is an important factor of social growth and development, which is necessary to create conditions for its safe operation, bearing in mind that all the benefits of this phenomenon are still paying a high price of unnecessary human suffering. In a contemporary society, there is a large number of institutions that play a role in the functioning of the transport system, but they stand out as the holders of activities and measures to improve traffic safety. Given that the number of accidents in recent years has reached a worrying level, in the interest of society is to reduce the number of accidents, or to increase traffic safety, because the consequences that the society is submitting in the form of human casualties and material damage are large. The model for the absolute traffic safety does not exist, but a permanent analytical monitoring of the status of road safety, control and regulation of traffic and taking measures to eliminate the risk factors can greatly increase the level of traffic safety.

Download Full-text