More than once when we’ve crossed Knoll Road we’ve stumbled a bit. Which, if there’s traffic approaching, isn’t a good idea. So we’ve stopped and asked ‘Why?’. The answer is obvious – there are two ‘kerbs’, one on top of the other. If you’re watching out for vehicles, rather than looking at your feet, it’s quite easy to miss the above-average drop from the pavement to the road surface. Is this hazard inevitable, or could better design have avoided it? Whatever the answer, take care crossing the road!