On 10 Jul, 21:10, (Neil Williams)
wrote:
As for the "good service" business, I'd rather the term "normal
service" was used, but they don't do any harm, and advising passengers
on what's going on around the network probably is useful so long as it
isn't done too much. It's helped me before. That said, the most
useful manifestation of this information is the plasma screens at the
entrance to stations where one can see problems at a glance.

"there is a normal service on the Northern line; there is a good
service on all other lines", etc.

--
John Band
john at johnband dot org
www.johnband.org