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Industry Sector / Mobility Division
The Sitraffic system platform from Siemens Mobility now also calculates trafficemissions and immissions in real-time, and integrates air quality into trafficcontrol for the very first time. The superiority of this model-based system incomparison to purely spot measurements lies in its comprehensive coverage andconsideration of the meteorological conditions. Any desired national or cityspecificenvironment model can be integrated into the Sitraffic open platform.
Nowadays, the politicians in most towns and cities are facing traffic and environmental problems of Herculean proportions. They have to enable the existing road network to cope with ever more traffic, while at the same time ensuring that immission limits are not exceeded. Often, up to half of the fine-dust pollution in a main urban street is generated by road traffic. However, a study made by the European commission in 2006 showed
that fuel consumption, and consequently also pollutant emission, could be reduced by up to fifty percent by better driving technique and the avoidance of traffic jams.
Siemens environmentally oriented traffic management calculates the emissions of oxides of nitrogen, fine dust and carbon dioxide on the basis of current traffic conditions: traffic density, vehicle speeds and the proportions of the different classes of vehicle. The calculations of the spread of pollution also incorporate real-time meteorological data and the profiles of the adjacent buildings. The current profile of urban air quality is completed by adding external pollution not resulting from traffic, such as that from local factories and power generation plants, and pollution coming in from remote sources. The open Sitraffic platform also facilitates the integration of suitable customer-specific emission and pollution spread models. The pollution data generated in real-time is taken as the basis for deciding the optimal traffic control strategy. The traffic is then controlled to the appropriate extent where and when needed. High pollution levels produced by, for example, a combination of atmospheric inversion and light winds trigger stronger measures to reduce emissions, whereas the free flow of traffic can be given top priority on days when there is no danger of limits being exceeded, and there is no need to impose traffic restrictions on account of environmental factors. In this way, Sitraffic contributes to efficient compliance with threshold values.
Further information on intelligent traffic control systems from Siemens Mobility at http://www.siemens.com/traffic
This press release is supplemented by a photo which you can view on the Internet at: http://www.siemens.com/mobility-pictures/MO200802018
The Siemens Industry Sector (Erlangen, Germany) is the worldwide leading supplier of production, transportation and building technologies. With integrated hardware and software technologies as well as comprehensive Industry-specific solutions, Siemens increases the productivity and efficiency of its customers in the fields of industry and infrastructure. The Sector consists of six divisions: Building Technologies, Industry Automation, Industry Solutions, Mobility, Drive Technologies and OSRAM.
With around 209,000 employees worldwide Siemens Industry achieved in fiscal 2007 total sales of approximately EUR40 billion (pro forma, unconsolidated).
The Siemens Mobility Division (Erlangen, Germany) is the internationally leading provider of transportation and logistics solutions. With its "Complete Mobility" approach, the Division is focused on networking the various modes of transportation in order to ensure the efficient transport of people and goods. Complete Mobility combines the company's competence in operations control systems for railways and traffic control systems for roadways together with solutions for airport logistics, postal automation, traction power supplies and rolling stock for mass transit, regional and mainline services, as well as forward-looking service concepts.
Reference Number: MO 200802.018 e
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