Andy wrote:
"Steve Radford" wrote in message
...


"PigPOg" wrote in message
. ..

Hello,

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.

Cheers,
Simon

Countdown system from SLE (France)
http://www.sle-fr.com/

Cheers
Steve


Does anyone know anything about the details about the BESI (Bus Electronic
Scanning Indicator) sytem and how it worked? Other than it based on barcodes
and scanning heads?
http://homepages.enterprise.net/beul.../london28.html


Each bus had a bar-code and a laser scanner on a concrete post (you can
see it in the photo) to read the code.
Info was relayed to inspectors at control room and they could 'turn
early' buses to reduce bunching and fill large gaps in service.

Bristol had an earlier abortive system with Lasers on buses and
bar-codes on Lamp posts. Unfortunately Lasers shook themselves to pieces
and buses had to be out of service for repair as no 'modular ' construction.

Jim Chisholm