DRIVING TIP
NUMBER 12
20th March
A turn for the worst
Have you ever found yourself braking in a bend simply because it was sharper than you originally thought?
If you have, then have a think about how you actually go about assessing the severity of bends. If you get it wrong, the consequences are potentially very serious, particularly on rural roads, which still dominate crash statistics.
And it is not just young, inexperienced drivers who get "caught out" by bends. It is here that, in the jargon, most "single vehicle accidents" take place.
There are a number of clues we can take from the environment to help us. The most obvious are the road signs and markings. There are other less obvious ones: the line of the trees, hedges, buildings, street lights or telegraph poles (although remember that sometimes telegraph poles run
through fields, so don’t follow them!).
The actual width of the road can be a factor: the narrower it is, the less space you have to manoeuvre. Skid marks on the road are an indication of past mistakes. The position and speed of other traffic can also provide you with valuable information. Another particularly useful way of assessing a bend is to use the “limit point analysis”. The limit point is the furthest point
which you can see, i.e. where the left and right hand sides of the road meet. To use this technique first make sure that you can stop before you get to it, then simply ask yourself: is it getting further away? If it is and you can see further ahead, then your speed should be fine. On the other hand if it is getting closer, then you could continue to reduce speed until the limit point begins to move with you and your view opens up again.
This technique takes a bit of practice but it will help you to link your speed with your range of vision and allow you to stop in the distance seen to be clear. And in roads where you can’t see through the bends it gives you a reliable and practical solution to a difficult judgement problem.
ENDS
NOTES TO EDITORS
1. Issued by the IAM Press Office, telephone 020 8996 9625 . We have an ISDN line for interviews.
2. The IAM (Institute of Advanced Motorists) directly influences the driving and riding of more than 160,000 road users a year (full members, associates and commercial clients) in the UK and Ireland. Established in 1956, the IAM is today best known for the advanced driving test and the advanced driving course. The IAM has grown to become the UK’s leading road safety charity, dedicated to raising driving standards, engaging with the road-using public and influencing road safety policy. IAM Fleet, the corporate arm of the IAM, has two subsidiary companies, Drive & Survive and Fleet Ireland. It also operates IAM Pro-Drive.
3. A 2006 report by Brunel University, following an 18 month study, concluded that “advanced driver training produces safer drivers and lower accident involvement”, with measurable improvements in knowledge, skills and attitude. The “Driving Tips” provided by the IAM are part of our broader road safety mission and not intended as a substitute for the advanced driving course.
4. In January 2007, the IAM Motoring Trust was established as the research and advocacy arm of the IAM. The IAM Motoring Trust will undertake research, promote practical policies, act as an advocate for safer roads, safer drivers and safer vehicles and encourage responsible motoring through education and training
