Nature and Biodiversity

Commuters in these cities spend more than 8 days a year stuck in traffic

Cars and public buses are seen in a traffic jam along a main street ahead of local elections in Bogota, October 20, 2015. The local elections in Colombia will be held on Sunday October 25 amid outrage over chaotic transport, increased insecurity, dirty streets and corruption in the capital. Picture taken on October 20, 2015. REUTERS/Jose Miguel Gomez - GF20000028264

Traffic piles up on Bogota, the world's most congested city. Image: REUTERS/Jose Miguel Gomez

Sean Fleming
Senior Writer, Forum Agenda
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Ask any motorist about traffic congestion and they will regale you with tales of long queues, wasted time, and mounting frustration. It’s a global problem with some of the world’s greatest cities also being home to some of the world’s greatest traffic jams.

One of the worst cities in the world for time-consuming traffic congestion is the Colombian capital, Bogotá, where commuters spent an average of 272 hours stuck in traffic last year.

Drivers in Rome lost 254 hours of their time to congestion, making it the best place in Europe for anyone who wants to waste time sitting in traffic. Hot on its heels is Dublin, which is only likely to come as a surprise to anyone that’s never experienced Ireland’s capital city during rush hour; drivers there lost 246 hours thanks to stationary traffic.

These were the three worst places to be a driver in a hurry in 2018, according to the INRIX 2018 Global Traffic Scorecard which analysed data from 200 cities in 38 countries across Europe and the Americas.

Image: INRIX/Statista

Europe is a hotbed of traffic congestion, due in no small part to most of it having developed in the pre-automobile era. Dense town and city centre areas, criss-crossed road layouts, and disparate planning regulations have meant many towns and cities have expanded beyond the capability of their road networks. The grid system that underpins the road layout of most US cities is an illuminating point of comparison.

High traffic volumes are responsible for large amounts of air pollution, a situation made worse by congestion – queues of vehicles, with their engines idling, emit noxious fumes over longer periods of time. The biggest contributors to dangerous air pollution are diesel fumes as they include nitrogen oxide, nitrogen dioxide, carbon monoxide, carbon dioxide, hydrocarbons and aldehydes among other pollutants.

Across Europe the healthcare costs of congestion-related dirty air has been put at around $79 billion. That figure includes lost productivity, diagnosis and treatment of illness, and investment in public health initiatives.

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Thankfully, although some of its cities are increasingly gridlocked, Europe is at the forefront of a range of progressive measures to get people out of their cars and on to alternatives such as public transport and cycling. This has the combined benefits of reducing congestion and pollution, cutting commute times, and improving people’s health. In the Danish capital, Copenhagen, bicycles outnumber cars by more than five-to-one and almost one-third of all journeys across the city are done on two wheels.

China has also been tackling the problem of traffic congestion, although with a more high-tech approach. In the city of Hangzhou, a traffic management system powered by artificial intelligence keeps things moving. The “City Brain” was developed by Alibaba, and uses data from cameras and social platforms to monitor the flow of traffic. Hangzhou used to be in the top five most congested Chinese cities. At the last count, it had dropped down to 57 in the rankings.

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Nature and BiodiversityHealth and Healthcare SystemsClimate Action
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