Bicycle Network: Behaviour

“The driver didn’t give way to me!” “I was forced up the kerb by a truck squeezing past.” “Pedestrians walk across the road without looking!” Every rider who has ridden on urban roads will have a story of a near-miss at a roundabout.

Traditionally, roundabouts are used by traffic engineers as a cheaper alternative to traffic lights, and a means of reducing vehicle collisions. But for bike riders, they are a risk, leaving them vulnerable to drivers who don’t notice anything smaller than a Mack truck.

Roundabouts are essentially high-speed, unsigned and unsignalled intersections, made all the more dangerous as drivers don’t expect bikes to be there. Multi-lane roundabouts in particular are a nightmare: they leave riders exposed and prone to being hit from all directions. If possible, avoid them entirely or get off your bike and walk. It is not worth taking on this alarming piece of infrastructure and ending up in hospital.

Figure 1

It pays to be extra aware and cautious when approaching any kind of intersection, but a bit more forethought is a good idea when nearing a roundabout. Plan how you are going to ride through it well in advance, and remember, you have a right to be there – ride assertively.

Start looking for a gap in the traffic in the lane well before the roundabout, indicate your intentions of moving into the lane in a confident and clear manner, take the lane and become a part of the flow of traffic.

There is a common misconception that you must give way to your right in a roundabout. While this is practical, the law actually says that you must give way to any vehicle already in the roundabout (see Figure 1).

Enter the roundabout in the middle of the lane and go through it the same way you would if you were in a car. This will make you more visible to other vehicles approaching the roundabout and prevent cars travelling in the same direction from trying to squeeze past you.

Keeping your head up, making eye contact with drivers and using obvious and clear hand signals is particularly important when travelling through a roundabout. Some riders like to point directly to where they are exiting. If you can, keep your signalling going until you are through the intersection.

All other vehicles entering the roundabout must give way to you, but be vigilant – sometimes drivers won't see you. Also be on the look out for aggressive drivers who see someone on a bike as offering them a potential gap to slip into.

Once through the roundabout, move back to the left side of the road.

Some single-lane roundabouts have bike lanes marked around the edge of the roundabout. These can put riders in a position where they are less likely to be seen, and they don't work if you are making a right hand turn as they place you in the wrong position on the road. It is much safer to ride in the middle of the lane.

This article appeared in the February-March 2011 edition of Ride On magazine.