Excessive speed and poor drivers' perception are the causes of a large number of traffic accidents. Analysis of the influence of geometry in drivers' behavior has been widely performed by different researchers. One way to improve road safety is to provide adequate visibility in order to help drivers adopt adequate behaviors. When the budget is not sufficient for expensive traffic solutions, innovative but simple solutions can be implemented. In this study, the experiment was performed to explore how drivers' perception and behavior are influenced by two virtual 3D shapes' projections-a 3D alternative crosswalk pattern and speed bumps consisted of triangular prisms. The results show statistically significant differences between drivers' willingness to reduce vehicle speed as a response to the two types of road markings: the first one with the square shape base (rectangular prism) and the second one with triangular shape base (triangular prism).
The negative impacts of climate change are becoming more and more intense and at the same time significantly endangering the traffic infrastructure. Increase in air temperature, drought, drastic floods, snow drifts, occurrence of landslides, etc. are a warning sign and an urgent call to take appropriate measures to adequately adapt the infrastructure to climate change. The increasing frequency of weather disasters leads to the interruption of traffic flows (up to several years) due to climate-resistant traffic infrastructure. The collapse of the road network, on the other hand, is influenced by limitations related to project solutions, construction techniques, building materials, as well as the way of managing and maintaining the road network. For these reasons, it is obvious that planning and designing infrastructure in accordance with the existing (and future) impacts of climate change should take a high place among policies aimed at improving mobility and promoting sustainability. The main goal of this paper is to assess the impact of climate change on road infrastructure and to review the literature and measures for the establishment of climate-resistant infrastructure. The review of the literature concluded that investments in infrastructure resistant to climate change can save significant financial resources and that, in addition to positive economic effects, they also provide a specific environmental and social contribution. Therefore, in the coming period, when designing new or reconstructing existing traffic infrastructure facilities, one should also consider the resistance to climate change and thus improve the durability, economy and efficiency of the traffic infrastructure.
Knowing the current atmospheric conditions of the roads is of great importance, both for road managers and for road users. RWIS stations record all relevant local atmospheric conditions in real time and transmit this information to control centers. This information has a dominant application in planning activities related to road maintenance in winter conditions. An analysis of the literature relating to the costs and benefits of RWIS stations indicates that their implementation in the transport infrastructure is not only economically profitable, but also offers a number of benefits such as more efficient road maintenance and facilitated organization of available funds, all for the purpose of winter road maintenance. Implementation of this system contributes to the safety of users on the public road network, as well as to the reduction of the number of traffic accidents in which the road and its condition are recognized as the cause. Twenty-eight meteorological stations were installed on the road network of the Republic of Serbia. On the basis of the historical data on the state of the roads from the mentioned stations in the previous period of winter maintenance and an individual implementation cost, the cost-effectiveness analysis of RWIS in the Republic of Serbia was performed.
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