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One of the most important challenges in urban design is planning an appropriate street network, satisfying the demand of users with different transport modes. Understanding the nature of road networks has been thoroughly studied problem for many years and extensive professional literature is now available in this respect. In this study, five different micro-districts and their road networks have been analyzed in Budapest. Therefore, this paper is aimed at providing a contribution to the knowledge of comparing road networks of different residential estates under different traffic loads. Moreover, significant similarities and differences were identified among urban street layouts in this paper. [ABSTRACT FROM AUTHOR]

Passenger car unit is an important comparison factor that helps the traffic engineer to describe the impact of heterogeneous traffic flows on the traffic performance of the infrastructure elements, compared to homogenous passenger car flows. The purpose of this study is to determine the passenger car unit value of certain vehicle types (e.g. buses, trucks) in signalized circular intersections. The values defined by the Hungarian standards are based on the weight and type of the vehicles, so it is important to know how these parameters of the vehicles influence the traffic conditions at this unique type of road junction, to be able to conduct a correct capacity calculation. PTV Vissim microscopic simulation program was used to model different traffic volumes and compositions getting by the recommended passenger car unit values for the application, and a proposal for further studies in subject. [ABSTRACT FROM AUTHOR]

Copyright of Der Moderne Staat is the property of Verlag Barbara Budrich GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Elektronik Industrie is the property of Hüthig GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The capacity of railway infrastructure often is in focus of transport policy issues. Already now a lot of lines and nodes are highly occupied. In order to handle the increasing traffic demand on rails, new and extended railway infrastructure is mandatory. The predicted traffic demands as well as the existing and prospective capacity of railway infrastructure are essential indicators for prioritising infrastructure projects. By using methods of railway operations, it is possible to calculate the available capacities, to identify existing bottlenecks and to evaluate measures to eliminate them. Mainly analytic calculation is used for capacity assessment, as it is possible to establish a relation between the utilisation of infrastructure and the quality of operation. The permitted waiting time is used as quality measure in this context. In the future economic criteria related to the expected costs and revenues should be taken into account next to the waiting times. However, currently the availability of needed input data is insufficient. If further research allows generalized, valid statements concerning this data, it would be possible to make more specific statements regarding the capacity of railway infrastructure. Therefore these results could lead to more delicate prioritised infrastructure projects. Furthermore the competitive situation between the different transport carriers at the transport market should be considered as well. [ABSTRACT FROM AUTHOR]

Background: Trauma is the leading cause of death in the patient group under 40 years of age. Within the prehospital management of seriously injured trauma victims the accuracy of the field triage by emergency physicians is of utmost importance. Objective: The aim of this study was to determine the accuracy of prehospital emergency physician field triage in road traffic accident victims. Material and methods: The study involved a retrospective analysis and comparison of prehospital and inhospital trauma records of road traffic accident victims treated by a Helicopter Emergency Medical Service (HEMS) team and transferred to a level I trauma centre. A comparison of prehospital and inhospital diagnostic findings was carried out according to an anatomical score (AIS). Results: Included in the analysis were 479 patients with a mean age of 37.0 ± 18.2 years, males 65.8 %, mean injury severity score (ISS) 15.5 ± 13.5, ISS > 16 in 41,1 % and mortality 7.3 %. The leading causes of injury were motor vehicle accidents (56.2 %), followed by motorcycle (24.0 %) and bicycle accidents (11.6 %) as well as truck accidents (4.0 %) and pedestrian accidents (4.2 %). The most common body regions injured (AIS ≥ 3) were the chest (37 %), head (25.1 %) and lower extremities (16.7 %). A correct prehospital field triage by emergency physicians was found for injuries with an AIS ≥ 3 of the head 77 %, chest 69 %, abdomen 51 %, pelvis 49 %, extremities 70 %, neck/cervical spine 67 % and thoracic/lumbar spine 70 %. Overlooked injuries in the prehospital setting (AIS ≥ 3) comprised predominantly injuries of the trunk (chest 12.6 %, abdomen 16.9 % and pelvis 15 %). Overlooked injuries were found significantly less for the head in patients with a Glasgow Coma Score ≤ 8 on arrival at the scene (5.4 % versus 19 %, p = 0.015), for the chest in patients with a SO ≤ 96 % on arrival at the scene (18.1 % versus 35.5 %, p = 0.004) and for the abdomen in patients with a systolic blood pressure < 90 mmHg on arrival at the scene (28.6 % versus 52.5 %, p = 0.025). Conclusion: Accurate field triage in seriously injured road accident victims, even by trained physicians, is difficult. This pertains especially to injuries to the abdomen and the pelvis. For the field triage a combination of anatomical and physiological criteria as well as the mechanism of injury should be used to increase accuracy. [ABSTRACT FROM AUTHOR]

An editorial is presented on the consequences for range from tension and sleep disorders to a weakened immune system, burnout and various physical and mental illnesses. Topics include support are often designed for the increased volume of traffic and increased heavy goods traffic; and technical innovations in modern bridge construction projects in future model in steel bridge construction.

Copyright of Kriminologisches Journal is the property of Julius Beltz GmbH & Co. KG Beltz Juventa and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of e & i Elektrotechnik und Informationstechnik is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Economic Policy Papers / Wirtschaftspolitische Blätter is the property of Wirtschaftskammer Osterreich and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)