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

  • Right ways to deter wrong-way
    August 6, 2020
    After research, California’s Caltrans is reviewing its highway design standards.
  • New techniques for tackling congestion
    December 8, 2015
    Transport experts from the Royal Academy of Engineering are proposing methods to reduce traffic congestion. These proposals are included in a discussion document intended to stimulate debate on congestion issues. The working group behind the paper includes industry experts and academic researcher. The team looked at technology and policy measures that could reduce congestion in the most critical transport sectors by 2030, evaluating which measures would be effective and value for money.
  • Variable message signs deliver real time travel information
    April 10, 2012
    Variable Message Sign systems are helping ease traffic congestion and keeping drivers better informed on key highways across Europe and the rest of the world. Guy Woodford looks at some of their recent applications By coupling its Intelligent Travel Time System (ITTS) with Bluetooth technology, Alcatel-Lucent is measuring traffic flow in real time and conveying it seamlessly to local authorities in the French city of Vélizy-Villacoublay. The city, a major business enterprise hub 14km south-west of central
  • EarthSense and Tantalum in UK project to cut road air pollution
    June 29, 2018
    Air quality specialist EarthSense is working with Oxfordshire County Council in England and connected vehicle company Tantalum to understand road traffic’s impact on air quality. Council fleet vehicles are being fitted with EarthSense’s Zephyr air quality measuring sensors that give real-time data on vehicle emissions and air quality along the route. The data collected by EarthSense will be used to coordinate traffic light control in an attempt to mitigate road congestion and, therefore, air pollution.