MARK RICE-OXLEY, CHRISTIAN SCIENCE MONITOR - Annoyed at how their upscale neighborhood has been ruined by incessant traffic, local authorities [in London's Museumland neighborhood] are planning to unveil a radical solution Monday: remove the conventional insignia of the road - traffic lights, white lines, guardrails, sidewalks - and create a single "shared space" for everyone, motorized or not. At first glance, the idea seems a little reckless. After all, it is only the presence of the crossing signals on Exhibition Road that seems to keep the bewildered, stray tourists from a nasty accident. And governments the world over have long since concluded that the safest way to avoid catastrophe on the roads is to segregate vehicles from pedestrians.