Siemens Aktiengesellschaft

Paul Mathias

Sebastian Althen

A method for automatically determining emission locations of selected emitted substances originating from a selected immission location. In this context, on the basis of input values which relate directly or indirectly to the emitted substances and by using defined rules of a propagation model suitable for determining propagation of the emitted substances, the emitted substances are traced back spatially, with accompanying indication of distribution values. Furthermore, a determining system carries out the determining method, and a traffic control system carries out a traffic control method.

Method and determining system for automatically determining emission locations, and method and traffic control system based thereon for immission-dependent traffic control

A system and method for providing local intersection control includes controlling light signal transmitters at an intersection. A traffic condition at an intersection is cyclically detected, a signal program is selected that is matched to the detected traffic condition, and the selected signal program issues switching commands to the light signal transmitter. Characteristic traffic conditions are derived from the detected traffic conditions for the intersection, each characteristic traffic condition is assigned a signal program matched to this traffic condition, a metric is defined as measure for positions of two traffic conditions relative to each other, the characteristic traffic condition that is closest to the actual traffic condition with respect to the metric is determined, and the signal program assigned to the closest characteristic traffic condition is executed for triggering switching commands for the light-signal transmitters. A control device is also included for realizing the method. This system has a higher flexibility during changes in the traffic conditions than purely fixed-time controls and a higher capacity with minimum planning and supply expenditure and a moderate number of detectors.

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Aachen, Germany

Paul Mathias