Vasile Dragu

• Professor
• Universitatea Națională de Știință și Tehnologie Politehnica București

At the present time, the increase in the level of motorization has led to levels of congestion that are difficult for the inhabitants of large cities to bear, with negative implications on quality of life. Solving the problem of congestion can no longer be achieved just by expanding and developing the networks; other solutions must be found that fi...

Currently, both production and consumption are in a constant expansion due to intense and rapid globalization. The competition among producers has become extremely fierce, and staying in the market depends directly on the quality of manufactured and sold products. This can only be achieved through a deep understanding of customer requirements and m...

The increasing mobility has led to unbearable levels of congestion and a deterioration in the quality of life due to its negative externalities. Today, Bucharest city has reached a degree of motorization of about 700 vehicles per 1000 inhabitants and it is constantly growing. Under these conditions, correlated and simultaneous measures are needed t...

The correlations between investments in transport infrastructure and territorial development continue to concern public authorities. They are responsible for optimising the allocation of financial resources, and they are interested in the correct short- and long-term estimations of investments in transport infrastructure’s consequences for developm...

Transport studies are conducted for a better understanding of the actual mobility and for developing transport forecasting models to predict the future transport demand and the changes in travel patterns. Transport planning involves the decision-making process for potential improvements to a community’ s roadway infrastructure. The first transport...

The development of the port facilities must be carried out in concordance with the ships flows size so that the sum of waiting costs for demands arrived for service and also for the service stations is minimal. In actual operating conditions this minimum is difficult to obtain due to varying demands faced by ports. The solutions for the port facili...

The paper tries to improve the multimodal passenger transport system. The growing demand for mobility has led to the need of finding ways to deal with it. The Authorities should focus on providing an attractive public transport which implies a public transport with sufficient transport capacity and with announced and correlated transport schedules....

Quality demands imposed to transportation by beneficiaries might be reached in the situation that the transport means that get obsolete with time, are replaced with others to satisfy the need for mobility addressed to the system. Establishing the moment of transport means replacement is an economic equilibrium problem. As time passes, obsolescence...

The transport system is a powerful system with varying loads in operation coming from changes in freight and passenger traffic in different time periods. The variations are due to the specific conditions of organization and development of socio-economic activities. The causes of varying loads can be included in three groups: economic, technical and...

The significant growth of volumes and distances on road transportation led to the necessity of finding solutions to increase water transportation market share together with the handling and transfer technologies within its terminals. It is widely known that the biggest times are consumed within the transport terminals (loading/unloading/transfer) a...

It is of great importance to examine all interactions between ports, terminals, intermodal transport and logistic actors of distribution channels, as their optimization can lead to operational improvement. Proposed paper starts with a brief overview of different goods types and allocation of their logistic costs, with emphasis on storage component....

Fulfilling the nowadays population’s mobility requirements is an acute duty that the policy makers, and mostly those from the public transportation field or local authorities, should solve into a sustainable manner. We travel more and for different purposes, with a lot of travel means, proving a selfish travel behavior. The travel pattern, mainly i...

Sea ports are important nodes in the supply chain, joining two high capacity transport modes: rail and maritime transport. The huge cargo flows transiting port requires high capacity construction and installation such as berths, large capacity cranes, respectively shunting yards. However, the port shunting yards specificity raises several problems...

This paper provides an overview on the ACROSSEE project (funded by the ERDF under the SEE program), its objectives, general methodology, and the main results. Moreover, the main survey results are presented as they relate to the Romanian road and rail border-crossing points (BCPs) with the Eastern neighbourly country, Moldavia. Results include the...

This paper provides an overview on the ACROSSEE project (funded by the ERDF under the SEE program), its objectives, general methodology, and the main results. Moreover, the main survey results are presented as they relate to the Romanian road and rail border-crossing points (BCPs) with the Eastern neighbourly country, Moldavia. Results include the...

An intermediate hub might increase the accessibility level of ports but also hinterland and so it can be considered more than a facility with a transhipment role. These hubs might lead to the development of other transport services and enhance their role in gathering and covering economic centres within hinterlands and also getting the part of logi...

Impetuous multiplication of mobility and road traffic proliferation lead to concerns for increasing the attractiveness of urban public transport. Compared to private car use, urban public transport attractiveness is conditioned, in particular, by travel times and certainty of respecting the transport schedules, meaning planned traffic stability. Tr...

Impetuous multiplication of mobility and road traffic proliferation lead to concerns for increasing the attractiveness of urban public transport. Compared to private car use, urban public transport attractiveness is conditioned, in particular, by travel times and certainty of respecting the transport schedules, meaning planned traffic stability. Tr...

Transport studies play an important role in identifying the "ex-ante" and "ex-post" travel demand in concordance with the social-economic characteristics of the studied zones and also in the destination, modal and itineraries split, through the transport models. The result of applying these steps is being materialized in transport demand that by me...

The concepts of road network vulnerability and social inequity induced by road closure are important when investigating the ability of road transport networks to provide continuity in operation and maintaining the level of service between acceptable limits. In a traditional approach is determinate total decrease in efficiency of network, but it is...

The impetuous growth of the mobility needs and thus the road traffic proliferation led to concerns for a more attractive public urban transport. Public transport attractiveness might grow by improving the quality indicators of the transport offer (travel time, safety, comfort, convenience, regularity) . Attractiveness of public urban transport in c...

The performance of a transport service is measured by its quality attribute, which is the most synthetic and comprehensive indicator. However, it is difficult to identify this service quality attribute because it involves the various customer perceptions and it may be influenced by the passengers' preferences or by the travel behavior corresponding...

The paper tries to evaluate the influence of the Bucharest metro network development on the urban areas accessibility and to characterize its homogeneity. In the case study the homogeneity index is determined according to which some conclusions regarding the actual metro network situation are drawn. The network poles accessibility was also determin...

metroul bucureştean. This paper tries to identify new meanings and aspects of accessibility starting from the correlations within and the demographical characteristics of the zones served by underground network. Through the case study herein, the underground network is topologically characterized and the nodes accessibility is determined for establ...

The underground network, like a high capacity infrastructure network, which is part of the public urban transport networks, plays a major role in any strategy of increasing public transportation attractiveness. The upcoming development of the Bucharest underground network stimulated the present research. We tried to emphasize the attractiveness of...

This paper tries to evaluate traffic effects of high speed trains passing on railways stations branch tracks. It is first identified and then determined the travel time increase related to traffic parameters (speed, acceleration and distance) and conclusions related to the importance of each parameter are asserted. Elements leading to decreasing or...

A transit system’s infrastructure (tramways, underground or light rails) plays a major role in satisfying people’s need for mobility – by size and the stability of their operation, and also by the independence of their quality performance compared to cars facing traffic congestion, because of their dedicated operation. We analyzed the potential tra...

This paper presents the authors’ vision about the planning foundation for the new residential areas from the large cities outskirts, in a sustainable development framework. One considers the great generation potential of the high and very high income population in case of the used products with remained reuse value, or new and undesired products, a...

Politicile de transport europene si nationale se concentreaza pe preluarea marfurilor de la transportul rutier la modurile de transport mai prietenoase fata de mediul inconjurator si decongestionarea coridoarelor de transport. Acest obiectiv se poate realiza prin imbunatatirea competitivitatii fluviale peste limita critica ce va spori atractivitate...

On services quality in transport terminals, both engineers, economists, transport operators or sociologists have their own perspectives. Determinant remains the traveller's perception. The quality of service is connected with the terminals inside design, illumination, ventilation and provided service standards (promptly information, personnel attit...

On services quality in transport terminals, both engineers, economists, transport operators or sociologists have their own perspectives. Determinant remains the traveller's perception. The quality of service is connected with the terminals inside design, illumination, ventilation and provided service standards (promptly information, personnel attit...

The article is an original work, aimed to highlight the significance of the network accessibility for the indissoluble relationship between transport networks and territorial planning. Some of the most widely used measures of physical accessibility are provided, and as study case they are applied for the public suburban transport network in the Buc...