Skip to main content

Traffic roundabouts, a steep learning curve

Drivers in the UK are very familiar with the concept of traffic roundabouts at intersections, which are designed to keep traffic moving more efficiently than a traditional signal-controlled intersection. However, according to a report on the US Government Executive website, drivers in some parts of the US don’t understand them. In Oakland County, just outside Detroit, some roundabouts have seen big spikes in crashes and property damage since they were built, but the severity of those accidents has been
October 1, 2014 Read time: 2 mins
Drivers in the UK are very familiar with the concept of traffic roundabouts at intersections, which are designed to keep traffic moving more efficiently than a traditional signal-controlled intersection.  However, according to a report on the US Government Executive website, drivers in some parts of the US don’t understand them.

In Oakland County, just outside Detroit, some roundabouts have seen big spikes in crashes and property damage since they were built, but the severity of those accidents has been limited due to a roundabout’s slow-speed design.

“We still struggle to educate motorists with how to properly use a roundabout,” Craig Bryson, spokesman for the road commission for Oakland County, said. “We had hoped the learning curve would be quicker, I guess. But it is a learning curve. It takes some time.”

States have now resorted to producing educational videos to help drivers navigate reconfigures road junctions. A video produced for Oakland County is now being used in Sarasota County, Florida and the 375 Texas Department of Transportation and El Paso County, Colorado, released new roundabout educational videos.

In the event that videos don’t work, states can always use the approach adopted by the 2103 Minnesota Department of Transportation, which hosted a roundabout educational outreach effort at a shopping mall, using a large rubber mat with lane markings and signs leading up to and inside a roundabout. This allowed people to walk through the movements they would make if they were driving a car. A table model with Matchbox cars to push around was also on hand.

Roundabout confusion isn’t just a problem for some US motorists. Japan has experienced similar problems with the implementation of roundabouts as part of a pilot project. At least no one has to navigate the ‘Magic Roundabout’ in Swindon, UK, which combines two roundabouts in one - the first the conventional, clockwise variety and the second, which revolves inside the first, sending traffic anti-clockwise.

For more information on companies in this article

Related Content

  • Study finds drivers open to automated driving
    January 21, 2014
    A new study by automotive company Continental finds a clear majority of motorists would welcome automated driving. The Continental Mobility Study 2013 indicates that 79 per cent of drivers in China, 77 per cent in Japan, 53 per cent in Germany, and 50 per cent in the US realise the benefit of automated driving. When asked about their individual intentions for using the technology, drivers specified they would primarily like to be driven through freeway roadworks and congestion and long freeway stretches.
  • Carrots are proving cost-effective in Netherlands
    October 3, 2018
    There are lessons to be learned from congestion avoidance schemes in the Netherlands. David Crawford welcomes some new thinking in road pricing. Highway operators worldwide are being urged to learn from Dutch experience in using financial carrots rather than sticks to encourage drivers to avoid contributing to congestion. A Netherlands/UK group makes a convincing cost/benefit case in a new global survey of road pricing technologies, economics and acceptability. Representing the Rijkswaterstaat section of
  • German authorities use CB-radio message to reduce accidents in roadworks
    April 8, 2014
    Citizen Band radio is proving useful to prevent accidents in Germany’s roadworks. In common with other German Länder (federal regions) with large volumes of commercial vehicles using their trunk road networks, Bavaria had been experiencing high levels of road traffic accidents (RTAs) involving heavy trucks in the vicinity of minor motorway maintenance sites. This was despite the extensive visual warning regulations published in the German federal road safety audit (RSA) guidelines for the protection of site
  • San Mateo Smart Corridor project
    November 9, 2012
    San Mateo County in California is to implement a US$35 million dollar smart corridor project which will apply the latest management technology along twenty miles of El Camino Real from San Bruno to Menlo Park and on local streets in San Mateo County. “We’re working together to help people get to where they are going easier and faster,” said Caltrans Director Malcolm Dougherty. “This is a good example of how technology can help us make better use of the roads we already have.” The Intelligent Transportation