I always thought that these traffic-monitoring systems should be
integrated somewhat with the London Buses data. At the moment, the
London Buses realtime information is not particularly realtime, and
generally only talks about roadworks, scheduled diversions and scheduled
disruptive events like demonstrations. I'd like to know how congested a
given link is, so I can plan my bus journey to avoid it, or use the Tube
instead.

A very impressive system would be to not only have accurate Countdown
information online and at stops, but also to have dynamically-estimated
journey times to destinations from that stop, available both online and
via Countdown at the stop itself. Integrate this into Journey Planner
for those looking for journeys departing "now", and you get an extremely
accurate guide as to the quickest way to your destination.

That sounds like a fantastic idea - a sort of Live Departure Boards
for buses, complete with estimated arrival times for all stops on each
bus's route. That way you'd know exactly when to leave home/work for
the stop round the corner, and never have to wait more than a couple
of mins for your bus even if the service is only 4bph or 6bph. And
with the estimated arrival times, you'd be able to decide exactly when
to abandon your usual route if it's disrupted and go a different way
instead, or leave early as it's going to take a bit longer!