In message , at 11:37:10 on
Tue, 24 Jun 2014, David Walters remarked:
Participants are required to be:
Aged 18+
Use London Transport on a regular basis to commute to a place of
work/study.

It seems only London Underground and London Overground and not other
rail or bus etc.

Smells to me like a 3rd year project, although no harm in that - it's
good they extend their audience beyond fellow UCL students.

As such it is quite likely to still have a limited universe to study.
--
Roland Perry