THAT there is a link between speed and casualty rates on our roads is indisputable (Letters, November 23). Speeding does indeed increase the risk and consequence of being involved in an accident because it dramatically reduces reaction time and increases the force of impact a vehicle has.

However, reducing the indicated limit on roads does not necessarily cause drivers to abide by the limit. How many people take any notice of the flashing 20mph signs outside our schools? Precious few. If, like me, you slow down even a little in these areas you collect a tail of irritated and obviously frustrated fellow-drivers behind you. I have even been overtaken by vehicles doing considerably more than the 30mph that would apply if the lights were not flashing. The prominent “20” painted on the roads in parts of Glasgow seems to make little difference to the actual speed of the traffic.

While most drivers at least attempt to stick to something around the 30mph mark, there is little or no recognition given to a limit any lower than that unless it is accompanied by enforcement measures such as speed bumps.

The greatest danger lies in those people who ignore the rules.
Cameron Crawford
Rothesay