"the statutory authority for new Pelicans was removed about 6 months ago. Any new crossing will be of a more modern type, e.g. a Puffin"
Understandable, really. Far too many vehicle operators seem to be unaware of the requirement, when the lights are flashing amber at a Pelican crossing, to wait at until the crossing is clear before proceeding.
However, I'm not convinced that Puffins are a vast improvement - if they're the ones I think they are: the ones which seem to have a ridiculously long phase where all traffic - vehicles and pedestrians - has a red light. What seems to happen all too often is that some 'enterprising' pedestrians decide that, since the vehicles can't go, they've got time to 'nip' across...and then have to run for it when the vehicle lights change to green sooner than they expected and a driver who feels that they've already been held up for too long puts their right foot to the floor. I actually think that the extended "all red" phase tempts more poor pedestrian behaviour and more driver impatience than the flashing green man/flashing amber.
Examples that come to mind are the lights at Dundas Street/Heriot Row/Abercromby Place junction, and the crossing on Princes Street opposite Castle Street. The latter has the added excitement of four lanes that a particularly athletic pedestrian can aspire to cross during the all-red phase, enhanced by the fact that in doing so they're throwing themselves in front of buses.
(I apologise to Puffins everywhere if these issues are simply down to rubbish sequencing of some other type of traffic-light controlled crossing, rather than imperfect implementation of crossing occupancy sensing technology.)