• TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    Issues regarding the rolling highways

    Trans Motauto World, Vol. 6 (2021), Issue 3, pg(s) 96-103

    Very popular among the environment activists and public authorities, the rolling highways prove to have a poor commercial viability. Therefore, the paper tries to find the reasons for this fact. The analysis starts with the descriptions of the technical solutions, then the traffic volumes recorded on different transport relations / countries are presented, together with the main findings from the European experience. The trends are explained considering the operational issues, the transport costs, the factors influencing the demand, the state support and the railway regulations, as well as the requirements of the customers. Special comments are focused on the Romanian experience, indicating the operational issues specific to Romania, the necessity for state aids with intensities of 45 – 60% from the costs, as well as the savings in external costs. The main conclusions are that the rolling highways are environmentally friendly, but costly and that they could develop only if the public authorities implement appropriate support measures and aids.

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    Characteristics and state of road traffic safety in Montenegro

    Trans Motauto World, Vol. 6 (2021), Issue 2, pg(s) 51-53

    The subject of research in this paper is the analysis of road traffic safety in Montenegro. Road traffic safety in Montenegro is not at an enviable level. The number of traffic accidents on the territory of Montenegro has been constantly increasing in the la st few years. The state of traffic safety in Montenegro differs significantly from most EU countries. In the last few years, Montenegro has made great efforts to improve road safety. Infrastructure is being improved, technical inspections of road vehicles are being tightened, and a larg e number of campaigns have been done to improve road traffic safety

  • TRANSPORT. SAFETY AND ECOLOGY. LOGISTICS AND MANAGEMENT

    APPLICATION OF GEOGRAPHICAL INFORMATION SYSTEMS TO EVALUATION A CONCENTRATION OF CHLORINE RELEASED INTO AN ATMOSPHERE IN THE CASE OF ROAD ACCIDENT

    Trans Motauto World, Vol. 3 (2018), Issue 4, pg(s) 169-172

    Modelling propagation of hazardous substances released in road accidents is important issue from the point of view of safety in road transport. The paper presents use of the Geographic Information Systems to analyse the impact of the emissions of hazardous compounds in the built-up area. In the paper dispersion of pollutants released in a road accident, involving a chlorine tanker truck, followed by chlorine spillage has been analysed. It is assumed that the accident took place in a mountainous area on a bypass within a built-up area. Concentrations of pollutant have been calculated in the own program. The calculation of field of wind speed was taking into account the terrain elevation and type of land cover. The package Idrisi Taiga has been applied in the pre-processing stage. It was used to generate a site map with buildings and aerodynamic roughness map. Meteorological conditions were also taken into account: wind speed and direction, temperature, atmospheric pressure and atmospheric stability class. The computer program consist two basic modules: diagnostic model of air velocity field and Lagrangian model of particles, being the original implementation of the Lagrange model of particles. In both models, some elements of mathematical modelling were applied. The models have been successfully validated and verified. The results of the calculations of concentrations of chlorine have been analysed in the Geographic Information System. The following analyses have been made, among others: designation of hazardous zones AEGL 1-3, determination spatial size of built-up areas within the zone, analysis of changes in pollution concentrations over time. The proposed analyses allows to determine areas exposed to deadly and highly dangerous concentration of chlorine.