Road traffic holdups reduce air quality and increase risk of accidents

Traffic congestion is a public health issue. It increases air pollution which is a known cause of asthma, lung cancer and cardiovascular diseases, and in particular creates "hotspots" of low air quality borne by local residents.  It increases the risk of traffic accidents through poor driver behaviour and judgement.

One morning last week, I was stuck in a traffic jam several miles long on the A40 outside Oxford, caused by the super-duper high-flow-thru roundabout at Headington being brought to a halt by roadworks eliminating one lane on one exit and a traffic light failing on another!

Those of you who commute to Oxford will pick up my ironic tone: we have had to endure doubling of commuting times & traffic jams for the past 2 years as Oxford has “improved” each roundabout by turn around the ring road!

Philosophical (I wasn’t going anywhere fast), I found myself wishing the clock turned back to a time when most people lived and worked in the same town, and then I moved on to wishing for a reality where “pass me the floo powder and where is the nearest fireplace?”[Harry Potter], or “beam me up scotty!” [Star Trek]  were actual options. These options would improve my quality of life, my health, and my climate. And of course everyone else’s.

It was also not lost on me, in that traffic jam, that this month [March 2016] my colleague and I had made Air Pollution the theme for our free electronic public health newsletter (to receive this, sign up here Global Health Knowledge Base).

I had just written a blog on air pollution caused by traffic jams in India, China, and why it’s the particulates, released by soot & fuel, that we measure for air quality & health. In the blog, Air pollution, can we reduce the impact of cars on urban air quality? , I had hoped that  emerging economies were going to learn from the mistakes of the UK and other “developed” countries. And there I was in the mistake.

But this blog is not about the traffic jam: its’ what I faced when I finally made it to the roundabout and afterwards. Cyclists, motorcyclists, cars and vans, all determinedly looking forward focussed only on getting from A to B and oblivious to what was left and right. Roadsense was not evident: dodgems was the name of the game.

I & my passenger came so close to be an RTA (road traffic accident) on that roundabout, caught as I was between slamming on my brakes and being rammed from the rear or hit side on. I reached my desk intact because I was experienced enough to realise my only choice was to make it through the gap ahead before it shut.

Knowing that road safety is one of the newly adopted 2030 Agenda for Sustainable Development: “halving the global number of deaths and injuries from road traffic crashes by 2020”, I ran a search on CABI's Global Health database   using  keyword descriptors  for ("road safety" or "traffic accidents" or (safety and traffic), and found 3428 records. I then drilled down for any link to driver behaviour or air quality and selected a couple for you. 

Enjoy the further reading I found!

Further reading

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1 Comment

  1. Benson Mwanza on 29th June 2017 at 10:12 am

    Environmental pollution caused by traffic congestion is now a major cause of lung cancer, asthma and cardiovascular diseases, in major cities which have cars using diesel as fuel as opposed to petrol.This problem can be minimized by reducing the importation of old cars and encouraging the use and importation of petrol cars. The infrastructure should also be improved so that traffic snarl ups are not seen on our roads.

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