Skip to main content

Cities’ quandary over air quality

Transportation professionals have always made the safety of drivers, other road users and pedestrians their top priority with congestion and other considerations further down the wish list. Now, however, it is not enough to prevent motorists, cyclists and pedestrians being injured in traffic accidents as it appears transport professionals’ responsibilities must go much wider – to the public in general. The OECD has calculated that road traffic related air pollution kills more than three million people per y
October 20, 2014 Read time: 3 mins
Transportation professionals have always made the safety of drivers, other road users and pedestrians their top priority with congestion and other considerations further down the wish list. Now, however, it is not enough to prevent motorists, cyclists and pedestrians being injured in traffic accidents as it appears transport professionals’ responsibilities must go much wider – to the public in general. The OECD has calculated that road traffic related air pollution kills more than three million people per year. That concept is, however, somewhat misleading these are not perfectly healthy people dying of inhaling noxious fumes while walking down the high street but those with existing medical problems whose demise has been hastened by poor air quality.

That’s not to say air quality is not important; it is, but the question it poses is who is responsible for implementing measures to improve air quality? While air quality is mainly a problem in inner cities, traffic is not the only source as industry, domestic housing and offices all contribute and pollution created thousands of miles away can be blown in on the wind.

In an effort to reduce greenhouse gas emissions, many national governments have introduced tax incentives that favour vehicles with fuel-efficient diesel engines as these produce less CO2. But it is these same diesel-engined vehicles that have now been identified as producing the pollutants that, in confined areas like city centres, are most injurious to health.

There's no 'one-size-fits-all' solution to combat air quality problems as each city is unique and requires bespoke schemes that have been carefully devised and evaluated in the same way as is currently done to reduce congestion. But unlike congestion, air quality is not a problem for the transportation department alone – it is a multi-facetted issue that requires multi-agency solutions.

While transportation professionals have a range of instruments to tackle traffic-related pollution sources (including traffic bans, congestion charging and low emission zones) any implementation also has to be considered in terms of the practical and economic consequences. After all, transport remains the lifeblood of communities and commerce; stop that and there will be no need to worry about air quality as the people and businesses will soon be gone too.

There can be no doubt that with increasing urbanisation, the problems of air quality and congestion will not be going away and transportation solutions will increasingly have to shift from individual drivers to multi-modal and shared mobility - be that mass transit or ride sharing. These will include the familiar (park and ride or rail and cycle) as well as new technologies such as electro mobility with all the infrastructure requirements these solutions may entail.  

It seems the role of transportation professionals is unlikely to get simpler any time soon.

Related Content

  • UK needs new freight strategy says report
    June 22, 2016
    The Institution of Mechanical Engineers is calling for the UK Government to urgently introduce a national multi-modal freight strategy in a move to ease traffic congestion, improve air quality and boost the economy. According to its report ‘UK freight: in for the long haul’ up to 30 per cent of all haulage vehicles on UK roads are empty and about 150 million miles are driven unnecessarily by lorry drivers. It claims a national strategy could outline plans to make better use of urban consolidation centres
  • Christian Haas, PTV: 'Be optimistic, innovative and strong'
    May 27, 2020
    Christian Haas joined PTV as chief executive in November last year after a career spent on the technology side of the financial services industry. Adam Hill asks him about how the transport and mobility industry will be reshaped in the wake of the global coronavirus pandemic
  • PTV and Bosch set out to improve air quality 
    March 24, 2021
    Precise emissions data from Bosch to be available in traffic simulation software PTV Vissim 
  • Is road user charging the first stop for congestion management?
    July 23, 2012
    David Hytch, Information Systems Director at the Greater Manchester Public Transport Executive, considers just where congestion pricing schemes should sit in transport planners' hierarchy of options for managing demand. On the face of it, Greater Manchester in England's proposed congestion charging scheme hit just about every sweet spot possible when it came to convincing the general public of the need for and benefits of such a venture. There was the promise from national government of almost £3bn-worth of