Determination of optimization potential of existing and future traffic management systems.
In order to handle the ever-increasing traffic volume on motorways, various traffic control measures will be implemented, among others. The potential of traffic management is thus not long ago exhausted. The research project will focus on the control level: The SBA has only a few, pre-defined traffic conditions and it only has a limited mappable by if-then rules action spectrum. The principle of the SBA based on the classic controller.
The opponent for control is the control in control engineering. Includes the following general control loop is understood: analyze traffic and identify deviation from the targeted traffic - arrange measure - Syndicate effect of the measure with the desired effect - arrange further action in case of deviation - and so in turn influences the quantitative deviation from the expected and actual effect which further or other measure must be arranged. This continues until the deviation between the intended and actual traffic situation traffic is minimized. The project will provide an important basis for the development of a classic SBA control towards a scheme by a time required for the target-actual comparison reference variable so describes the measurable actual traffic flow that therefrom to winning deviation further by a regulator can be processed. This results in the project, the task of describing the optimal traffic flow and to transfer them to measurable quantities. The project also aims to clarify what measures can bring about an optimum flow of traffic. In addition, the question of optimal input data (locations of detection, requirements C2I, etc.) and suitable display locations to be taken up and discussed.
Innovative and sustainable replacement construction of concrete bridges.
Due to the aging buildings, the continuous rise of heavy traffic, further projected increases and the existing shortcomings in the existing road bridges the replacement building is becoming increasingly important. When creating road bridges as replacement new buildings within the existing road network result during construction by the temporary, total or partial decommissioning of buildings impairment of traffic flow. Especially on busy stretches procedures are therefore asked which reduce both the necessary traffic-related restrictions and the construction total to a minimum, thereby ensuring the availability of the works. For the "replacement building" should be provided, taking into account the different construction methods and construction practices that reduce traffic congestion to a minimum, involving innovative solutions. The project focuses on the object plane (ie at the level of each building). Interests of other modes of transport (rail and waterways) should be considered, if applicable.
The studies focus on the "reduction of construction" and "minimization of traffic restrictions" to be placed.
There are the following sub-projects are:
- Representation of the current approach (the current standard);
- Presentation of innovative approaches (even from abroad);
- Comparative comparison of the current approach and the innovative approaches;
- Creating concepts for implementation.
The full Terms of Reference is made to the tender documents.
FE 02.0380 / 2015 / FRB -HBS compliant simulation of traffic flow on single-lane roads.It is expected that bidders / project partners can identify relevant experience in the use of at least two simulation programs available on the market.