On 20.02.10 21:28, John wrote:
Cab signalling would not work for NLL at the current time because the
route is used by so many trains which are not fitted. The costs of
fitment would be very high.
ELLX would have been a good route to try it on with all new trains, but
I think they decided the technology was not mature enough when they had
to let the contracts.
In ,
writes
I wonder if they considered new types of signalling on the NLL, such as
cab signals. Did they consider that at all on the ELLX?
That technology has been around since the 1920s and is widely used in
other nations.
They could have started with the ELLX, since it won't really interact
with the NLL.
If it works out, then perhaps they could start considering the NLL in
phases. I know that they plan to be rid of goods trains on the line, but
trains can also be fitted with cab signals. They don't have to be built
in when the units are being constructed.