Skip to main content

Taxis to measure pollution in Stockholm

In a pilot study being carried out by the Department of Applied Environmental Science (ITM) at Stockholm University, four taxis have been equipped to measure pollution and particulate matter. Instruments fitted to the roof of the taxis undertakes measurements which are then cross referenced with the cars' GPS as they travel around Sweden's capital.
May 9, 2012 Read time: 1 min
In a pilot study being carried out by the Department of Applied Environmental Science (ITM) at Stockholm University, four taxis have been equipped to measure pollution and particulate matter. Instruments fitted to the roof of the taxis undertakes measurements which are then cross referenced with the cars' GPS as they travel around Sweden's capital. According to Christer Johansson, professor at ITM, the longer term vision is for a comprehensive on-board pollution particulate measurement system using hundreds of vehicles, including taxis, buses and other vehicles, connected to the city's active traffic control so that measures can be taken dynamically to reduce congestion and environmental damage.

Related Content

  • Norway’s record breaking undersea road tunnel
    February 25, 2015
    The world's deepest road tunnel is currently in construction near Stavanger in Norway but is only the prelude to even larger projects - report and photographs by Adrian Greeman. Norway's convoluted coastline of fjords and high mountains is famously scenic but also a major problem for transport and connections. The country has long experience of constructing tunnels as a result. Now a series of tunnels underway, or in design, around the oil industry city of Stavanger will stretch its skills more than usual.
  • Colombia’s Toyo Tunnel project providing key link
    May 20, 2016
    Colombia’s Toyo Tunnel project will provide an important new link for the country, writes Mauro Nogarin. The new Toyo Tunnel project is of immense importance for Colombia, improving transportation and providing an important road link. The work is being carried out by the Antioquia to the Sea Consortium, which comprises of FCC Construction, Cass Builders and Company, Carlos Alberto Solarte and Estyma Studies and Handling. These firms are building the Toyo Tunnel project and the various access roads, with the
  • Rebuilding a historic bridge linking the US and Canada
    March 8, 2016
    While many road authorities in North America are finding it difficult to stretch their bridge assets beyond half a century, one bridge is closing in on its centenary - David Arminas reports The international Peace Bridge, connecting the Canadian province of Ontario with the US state of New York, is 88 years young this year, and still going strong.
  • New methods for non-destructive concrete testing
    August 29, 2017
    How best is it possible to assess the state of concrete in a road pavement, bridge deck or tunnel wall? One of the most reliable ways is to take a core of concrete from the structure to analyse and test in the laboratory. One downside to this method is that doing the test creates weak points in the structure that must then be repaired. Another is that the frequency of such cores cannot be too great – so it is possible that some problem areas will be missed. New technologies from the world of geospatial eng