Articles on traffic jam

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Reforming how drivers pay for the costs of their road use can help keep traffic flowing, which is just one of the potential benefits. Holli/Shutterstock

Delay in changing direction on how we tax drivers will cost us all

Traffic congestion is the main cost that cars create when they use existing roads. Road use charges are a more efficient and fairer way to cover the cost and help ensure traffic flows.
A trial of 1,400 drivers across Melbourne suggests time-of-use charges can be effective in easing traffic congestion. AMPG/Shutterstock

City-wide trial shows how road use charges can reduce traffic jams

A city-wide experiment suggests well-designed road use charges could ease congestion by encouraging people to drive at different times, take other routes or use other transport.
Rush-hour traffic in Jakarta on 13 June 2017. If not for fuel subsidy cuts, the congestion could have been even worse. Reuters/Beawiharta

Indonesia’s fuel subsidy cuts prevented even worse traffic jams

Traffic continues to increase, but more slowly than would have been the case if the reforms had not gone ahead.
Drivers make some suboptimal routing decisions when they’re traveling around town. A. Lima et al. J. R. Soc. Int. DOI: 10.1098/rsif.2016.0021

Recalculating! By not driving the optimal route, you’re causing traffic jams

No wonder you're always late. Drivers use a route that minimizes travel time on only a third of their trips. Here's how real-world data can help planners fight traffic congestion.
The mathematical modelling of traffic networks can throw up conflicting results. Flickr/Wendell

The maths of congestion: springs, strings and traffic jams

The planning for any new road should include plenty of mathematical modelling. But getting the right numbers can be a challenge and there's the odd paradox to deal with as well.

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