http://www.lewisham.gov.uk/myservices/tr...sings.aspx
Each [pelican crossing] site is surveyed and the results compared with national criteria to identify the most needy locations. Factors measured include:
the number of people crossing
the amount of traffic
the number of injures on the road near the site
local features such as hospitals, schools and shops.
We have the high number wanting to cross here (bus stop, Church Vale short-cut, and retail units (real and potential) all on the other side.
We have the large amount of traffic at the times most people need to cross.
And we have the busy local features - the station exit and underpass.
So the need is pretty well established. The only criteria we fall short on is the number of road injuries.
It seems we PV side pedestrians are penalised because we seemingly are patient, have good eye sight and take great care crossing, or have just been lucky so far.
As for cost, it seems it can vary , but much of the work has already been done for this site, like drainage, kerbing, paving, barriers and road narrowing.
Installation costs would need to cover:
anti-skid surfacing,
road markings and studs,
new traffic signs,
electrical connection and
and new signal heads and poles.
£20k should easily cover it, and have spare left over for management bonuses and some crisps for the workers.