Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

3D planning tool for the city of tomorrow

02.04.2012
Noise levels, fine particulate matter, traffic volumes – these data are of interest to urban planners and residents alike. A three-dimensional presentation will soon make it easier to handle them: as the user virtually moves through his city, the corresponding data are displayed as green, yellow or red dots.

Fine dust, aircraft noise and the buzz of highways have a negative impact on a city‘s inhabitants. Urban planners have to take a lot of information into consideration when planning new highways or airport construction. What is the best way to execute a building project?


Red, blue and green cubes indicate noise pollution. © Fraunhofer IAO

To what extent can the ears – and nerves – of local residents be protected from noise? Previously, experts used simulation models to determine these data. The latest EU directives provide the basis for this. They obtain the data as 2D survey maps; however, these are often difficult to interpret, since the spatial information is missing.

That will get easier in the future: urban planners will be able to virtually move, with computer assistance, through a three-dimensional view of the city. In other words, they will “take a walk” through the streets. No 3D glasses required, though they would be a good idea for the perfect 3D impression. The corresponding values from the simulation “float” at the associated locations on the 3D map – where noise data might be displayed using red, yellow or green boxes. The distances between data points currently equal five meters, but this can be adjusted according to need. The user determines how the map is displayed – selecting a standpoint, zooming in to street level or selecting a bird’s-eye perspective.

This can provide quick help in locating problems such as regions with heavy noise pollution. The 3D map was developed by researchers at the Fraunhofer Institute for Industrial Engineering IAO and the Fraunhofer Institute for Building Physics IBP. “For the simulations, we used standard programs that are oriented around EU directives on noise-pollution control,” says Roland Blach, department head at IAO. “The main challenge was to come up with a user-friendly way of displaying different simulation results.”

Electric cars do not reduce noise levels

Another interesting consideration that the researchers were able to visualize with this tool: if electric vehicles alone were driven in the city, instead of cars with internal combustion engines, how would this change the volume level? What if both gas-driven and electric motor vehicles were on the roads? “Admittedly, you can barely hear electric cars when starting up. At about 30 kilometers per hour, however, you start to hear rolling noises that can get really loud at speeds of 50 kilometers per hour.

Initial simulations found that the conventional simulation models stipulated by public agencies tend to average too sharply: we have yet to see any significant difference in the noise level in electric vehicles or gas-driven cars, since apparently it‘s the rolling noise that predominates,” says Blach. Researchers are presenting these simulations, using Stuttgart as an example, at the Hannover Messe from April 23–27 (Hall 26, Booth C08).

The 3D map is only one of the tools developed by researchers in the “Virtual Cityscape” project. Another is parametric modeling. Here, a structure is designed such that any subsequent changes to dimensions can be made simply by entering the new measurements. If new buildings are to be planned, the scientists first analyze the logistical flows. How many people pass through which halls and corridors? What goods have to get through?

“The program takes these usage parameters into account, and automatically incorporates them into the planning,” explains Blach. For example, if only standard windows are supposed to be used in a building, and the architect enlarges a space, then the program automatically places the windows at the appropriate distances or even inserts another one if space allows.

Roland Blach | Fraunhofer Research News
Further information:
http://www.fraunhofer.de/en/press/research-news/2012/april/3d-planning-tool-for-the-city-of-tomorrow.html

Further reports about: IAO combustion engine electric car electric vehicle motor vehicle noise level

More articles from Architecture and Construction:

nachricht Concrete from wood
05.07.2017 | Schweizerischer Nationalfonds SNF

nachricht Modular storage tank for tight spaces
16.03.2017 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH

All articles from Architecture and Construction >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

What the world's tiniest 'monster truck' reveals

23.08.2017 | Life Sciences

Treating arthritis with algae

23.08.2017 | Life Sciences

Witnessing turbulent motion in the atmosphere of a distant star

23.08.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>