Bundesanstalt fur Strassenwesen BASt

Bergisch Gladbach, Germany

Bundesanstalt fur Strassenwesen BASt

Bergisch Gladbach, Germany
SEARCH FILTERS
Time filter
Source Type

Seiniger P.,Bundesanstalt fur Strassenwesen BASt | Schroter K.,TU Darmstadt | Gail J.,Bundesanstalt fur Strassenwesen BASt
Accident Analysis and Prevention | Year: 2012

On a global scale, motorcyclists are typically over-represented in crash statistics. This trend is increasing as although total road crashes and fatalities have decreased over the last fifteen years, motorcycle crash volumes have not. This paper describes the potential of stability control systems to help save motorcyclists' lives. It summarizes safety research conducted and commissioned by the Federal Highway Research Institute (Bundesanstalt für Straßenwesen, BASt) during the last twenty-five years, with particular focus on the authors' own work in the last five years, and the state of the art in motorcycle control systems. The conclusion is that further investigation and improvement of these systems should be encouraged. Unfortunately, active stabilization of motorcycles is not presently possible and may not be possible in the future. Therefore, further development, evolution and optimization of Anti-Lock Brake Systems (ABSs) and Traction Control Systems (TCS) should be undertaken, and Anti-Lock Brake Systems (ABSs) should be mandatory on powered two-wheelers. These steps will make the powered two-wheeler a safer urban transportation system. © 2010 Elsevier Ltd. All rights reserved.


Van Noort M.,TNO | Bakri T.,TNO | Fahrenkrog F.,RWTH Aachen | Dobberstein J.,Bundesanstalt fur Strassenwesen BASt
IEEE Conference on Intelligent Transportation Systems, Proceedings, ITSC | Year: 2013

One step in the development of safety oriented Advanced Driver Assistance Systems is an ex ante assessment of the expected safety impacts. This requires a careful analysis combining models and data from various sources. This paper describes the Safety IMPact Assessment Tool, called SIMPATO, that was developed in the interactIVe project. © 2013 IEEE.


Winter G.,University of Duisburg - Essen | Schnellenbach-Held M.,University of Duisburg - Essen | Gusia P.J.,Bundesanstalt fur Strassenwesen BASt
Beton- und Stahlbetonbau | Year: 2012

The research project "Execution quality of reinforced and prestressed concrete structures on federal highways" was conducted in the 1990s. The current research project based on this preliminary project aims to inspect whether the regulations for execution are implemented successfully in practice and how they have influenced the quality of workmanship. As part of the research project 53 construction site inspections on 19 structures were carried out in less than two years to observe the main stages of execution. In comparison to the preliminary project a decrease in the number of defects per site visit as well as the "seriousness" of the defects is registered. Planning and design documents were improved. The construction supervision offices have shown considerably better knowledge of applicable regulations. The regulations for execution introduced in 2003 have also been implemented successfully in the bridge construction industry. The deficiencies could have been avoided by implementing the existing rules. © 2012 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin.


Different fire scenarios with liquid laugh burns up to 28 tons of gasoline were investigated in a further article. It could be shown that these fires can be covered by the ZTV-ING temperature time curve. Within the framework of a further research project for the Federal Highway Research Institute (BASt), further fire scenarios were investigated, where the fire starts from this liquid laughter fire due to leakage of a tank truck loaded with 28 t gasoline. The fire spread on other vehicles in the tunnel and his effect is einvestigated, whereas a truck laden with wooden pallets is located immediate to the tanker. The present article reflects the significant results in terms of the structural behaviour and the tunnel safety of the investigations carried out by means of computational fluid simulations and finite element calculations. Copyright © 2015 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin.


Schmidt J.,MFPA Leipzig GmbH | Bergerhausen U.,Bundesanstalt fur Strassenwesen BASt | Dehn F.,MFPA Leipzig GmbH
Beton- und Stahlbetonbau | Year: 2013

Fires in reinforced concrete road tunnels - temperature loads, temperature distribution and concrete spalling Tunnels are important infrastructure constructions. The assessment of the effects of fire events is therefore also of major economic importance. The fire of a tank truck loaded with gasoline represents such a fire event. Part of a research project for the Federal Highway Research Institute (BASt) examined different scenarios for an extreme case, different rates of energy release and their influence on the tunnel safety by means of CFD and FEM simulations. It could be shown that even fire scenarios with liquid laugh burns up to 28t petrol can be covered by the ZTV-ING temperature time curve. The following article summarizes the most important results. Copyright © 2013 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin.


Friese M.,Bundesanstalt fur Strassenwesen BASt | Vogdt F.U.,TU Berlin | Wiggenhauser H.,BAM Federal Institute of Materials Research and Testing
Beton- und Stahlbetonbau | Year: 2011

If cracks in concrete elements are repaired by filling them with epoxy, polyurethane or a cement based filler, there are three criteria for the repair quality: there should be a non-positive connection between the crack's edges, the repaired crack should be watertight, and it should be completely filled. While the first two criteria can easily be verified, to date the only way to get information about the completeness of the filling has been to drill cores. By applying advanced ultrasonic imaging techniques, significant differences between empty, partially filled and completely filled cracks can be observed for epoxy or cement based fillers. Copyright © 2011 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin.


Hynd D.,TRL Inc | Depinet P.,Innovative Solutions | Lorenz B.,Bundesanstalt fur Strassenwesen BASt
Traffic Injury Prevention | Year: 2013

Objective: The United Nations Economic Commission for Europe Informal Group on GTR No. 7 Phase 2 are working to define a build level for the BioRID II rear impact (whiplash) crash test dummy that ensures repeatable and reproducible performance in a test procedure that has been proposed for future legislation. This includes the specification of dummy hardware, as well as the development of comprehensive certification procedures for the dummy. This study evaluated whether the dummy build level and certification procedures deliver the desired level of repeatability and reproducibility. Methods: A custom-designed laboratory seat was made using the seat base, back, and head restraint from a production car seat to ensure a representative interface with the dummy. The seat back was reinforced for use in multiple tests and the recliner mechanism was replaced by an external spring-damper mechanism. A total of 65 tests were performed with 6 BioRID IIg dummies using the draft GTR No.7 sled pulse and seating procedure. All dummies were subject to the build, maintenance, and certification procedures defined by the Informal Group. Results: The test condition was highly repeatable, with a very repeatable pulse, a well-controlled seat back response, and minimal observed degradation of seat foams. The results showed qualitatively reasonable repeatability and reproducibility for the upper torso and head accelerations, as well as for T1 Fx and upper neck Fx. However, reproducibility was not acceptable for T1 and upper neck Fz or for T1 and upper neck My. The Informal Group has not selected injury or seat assessment criteria for use with BioRID II, so it is not known whether these channels would be used in the regulation. However, the ramping-up behavior of the dummy showed poor reproducibility, which would be expected to affect the reproducibility of dummy measurements in general. Pelvis and spine characteristics were found to significantly influence the dummy measurements for which poor reproducibility was observed. It was also observed that the primary neck response in these tests was flexion, not extension. This correlates well with recent findings from Japan and the United States showing a correlation between neck flexion and injury in accident replication simulations and postmortem human subjects (PMHS) studies, respectively. Conclusions: The present certification tests may not adequately control front cervical spine bumper characteristics, which are important for neck flexion response. The certification sled test also does not include the pelvis and so cannot be used to control pelvis response and does not substantially load the lumbar bumpers and so does not control these parts of the dummy. The stiffness of all spine bumpers and of the pelvis flesh should be much more tightly controlled. It is recommended that a method for certifying the front cervical bumpers should be developed. Recommendations are also made for tighter tolerance on the input parameters for the existing certification tests. © 2013 Copyright Taylor and Francis Group, LLC.


Muller U.,BAM Federal Institute of Materials Research and Testing | Von Weschpfennig D.,Bundesanstalt fur Strassenwesen BASt | Malaga K.,BAM Federal Institute of Materials Research and Testing | Malaga K.,Swedish Cement and Concrete Research Institute
Bautechnik | Year: 2011

Engineering structures of the Federal Motorway System are in particular vulnerable for graffiti smearing due to their location and exposition. Graffitists do not care about the type of substrate material. In particular porous materials cause great difficulties in the removal of graffiti. In order to protect construction material surfaces and to aid the cleaning from graffiti, anti-graffiti systems (AGS) were developed in recent years. A new method for testing the cleaning efficacy and the durability of AGS was initiated by BASt together with technical delivery guidelines. However, the testing method and the delivery guidelines are designed for concrete surfaces. A scientific study investigated if the new testing method can be applied to other substrates as well, in particular to masonry or cladding of stone or brick. Additional factors influencing the cleaning efficacy of different substrates were analyzed. Copyright © 2011 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin.


Friebel W.-D.,Bundesministerium fur Verkehr | Blosfeld J.,Bundesanstalt fur Strassenwesen BASt | Kaundinya I.,Bundesanstalt fur Strassenwesen BASt
Bautechnik | Year: 2010

In the recent past it was shown that road tunnels can be damaged severely by large fires. For that reason several international research projects were carried out for further development of structural fire protection of road tunnels. Based on international research projects three national research projects were initiated by the Federal Ministry of Transport, Building and Urban Development (BMVBS) and the Federal Highway Research Institute (BASt). In the course of these projects existing temperature-time-progressions (so called "fire curves") for road tunnels, fire tests in tunnels and real fires in road tunnels were analyzed with regard to a possible application for the design of structural fire protection of road tunnels. Furthermore the temperature penetration in the tunnel lining and the load bearing capacity of usual tunnel sections were numerically examined under fire influence. Finally the influence of fiber-modified concrete on the effect of explosive spalling was investigated by means of large scale fire tests on specimens made of concrete for tunnel lining. In the following procedures and results of the national research projects are described. © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin.


PubMed | Bundesanstalt fur Strassenwesen BASt
Type: Journal Article | Journal: Accident; analysis and prevention | Year: 2011

On a global scale, motorcyclists are typically over-represented in crash statistics. This trend is increasing as although total road crashes and fatalities have decreased over the last fifteen years, motorcycle crash volumes have not. This paper describes the potential of stability control systems to help save motorcyclists lives. It summarizes safety research conducted and commissioned by the Federal Highway Research Institute (Bundesanstalt fr Straenwesen, BASt) during the last twenty-five years, with particular focus on the authors own work in the last five years, and the state of the art in motorcycle control systems. The conclusion is that further investigation and improvement of these systems should be encouraged. Unfortunately, active stabilization of motorcycles is not presently possible and may not be possible in the future. Therefore, further development, evolution and optimization of Anti-Lock Brake Systems (ABSs) and Traction Control Systems (TCS) should be undertaken, and Anti-Lock Brake Systems (ABSs) should be mandatory on powered two-wheelers. These steps will make the powered two-wheeler a safer urban transportation system.

Loading Bundesanstalt fur Strassenwesen BASt collaborators
Loading Bundesanstalt fur Strassenwesen BASt collaborators