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Old November 1st 05, 07:30 PM posted to uk.transport.london
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Default Bus tracking
On Mon, 31 Oct 2005 11:18:28 +0000, Q ..@.. wrote:

On 16/10/2005 00:38, wrote:
I think I read somewhere recently that London Buses can be tracked in
real-time to determine their position and hence bus-stop ETA. Does
anyone know what system is employed (preferably the manufacturer of
the kit used)and how reliable it is? Alternatively, perhaps someone
can suggest a contact at TFL.


In the 1990's we had the Countdown system that is still in use today,
but hasn't been rolled out everywhere because it's flawed. If a bus
gets stuck for any reason, I don't believe the time is adjusted. It can
only estimate a time when it passes fixed points, rather like tube
trains. It makes the xx minutes a bit of a waste of time ultimately.

When TfL visited our offices to show their journey planner, they said
they're investing in a new GPS system which will allow for proper
real-time tracking. I hope this will then mean screens can be added to
all the other routes as we were once promised!

Jonathan

Yep, this problem is always fun - a bus gets stuck, or follows a
diversion and drops off countdown. You get left waiting for it, only to
find its not coming.

Which leads me onto the point of 'beacons' There are a few of these
dotted about on there own little posts with what look like VHF aerials
mounted on top of them.
They're for bus priority at signals using wireless lan technolkogy.

Not part of Countdown.

Rob.
--
rob at robertwoolley dot co dot uk
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