Countdown (by jamesbrownontheroad). More at his blog:
In North America the countdown ticks away on green, telling you how much longer you have left to cross. But here in Scotland, it ticks down on red, telling you how long you have to wait until you can cross.
In my eyes, it’s the wrong way round, but it suggests an alternative appreciation of the dangers at the crosswalk. It doesn’t warn you that the lights are about to change and that you shouldn’t start to cross… quite the opposite: it placates you by telling you that you don’t have long to wait until the green man reappears.